BestBuy starts publishing info on "open-box" items on a per-store basis in RDF

2010-03-30 Thread Martin Hepp (UniBW) 

Dear all:

BestBuy has just started to expose info on available "open-box" items 
(returns, demo appliances, etc.) on a per-store granularity in RDF using 
GoodRelations.


See Jay Myer's blog post at:

http://jay.beweep.com/2010/03/30/creating-local-visibility-to-open-box-products-with-front-end-semantic-web/?utm_source=rss&utm_medium=rss&utm_campaign=creating-local-visibility-to-open-box-products-with-front-end-semantic-web

The sitemap index is at:

http://stores.bestbuy.com/openbox-sitemaps/

Kudos to Jay for his great work!

Best wishes

Martin

--
--
martin hepp
e-business&  web science research group
universitaet der bundeswehr muenchen

e-mail:  h...@ebusiness-unibw.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
 http://www.heppnetz.de/ (personal)
skype:   mfhepp
twitter: mfhepp

Check out GoodRelations for E-Commerce on the Web of Linked Data!
=

Project page:
http://purl.org/goodrelations/

Resources for developers:
http://www.ebusiness-unibw.org/wiki/GoodRelations

Webcasts:
Overview - http://www.heppnetz.de/projects/goodrelations/webcast/
How-to   - http://vimeo.com/7583816

Recipe for Yahoo SearchMonkey:
http://www.ebusiness-unibw.org/wiki/GoodRelations_and_Yahoo_SearchMonkey

Talk at the Semantic Technology Conference 2009:
"Semantic Web-based E-Commerce: The GoodRelations Ontology"
http://www.slideshare.net/mhepp/semantic-webbased-ecommerce-the-goodrelations-ontology-1535287

Overview article on Semantic Universe:
http://www.semanticuniverse.com/articles-semantic-web-based-e-commerce-webmasters-get-ready.html

Tutorial materials:
ISWC 2009 Tutorial: The Web of Data for E-Commerce in Brief: A Hands-on 
Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey
http://www.ebusiness-unibw.org/wiki/Web_of_Data_for_E-Commerce_Tutorial_ISWC2009

Preview of the New GoodRelations Language Reference

2010-04-01 Thread Martin Hepp (UniBW) 

Dear all:

Over the last weeks, we have been working on a much improved 
documentation of the GoodRelations vocabulary for e-commerce [1].


Our main goal was to provide a more readable, more accessible official 
specification.


Please find a preview here:

http://www.heppnetz.de/ontologies/goodrelations/20100401/v1.html

This will replace the current document at

http://purl.org/goodrelations/v1.html

shortly.

Please note that the ontology itself did not change, we just updated the 
rendering and organization of the HTML document. Also, this is not meant 
to replace the GoodRelations Primer [2], which is a tutorial-style 
introduction to using GoodRelations, and the GoodRelations Cookbook [3], 
which contains recipes for common scenarios.


Any feedback would be greatly appreciated!

Thanks to Alex Stolz and Andreas Radinger for their hard work on that!

Best wishes

Martin Hepp

[1] http://purl.org/goodrelations/
[2] http://www.heppnetz.de/projects/goodrelations/primer/
[3] 
http://www.ebusiness-unibw.org/wiki/GoodRelations#CookBook:_GoodRelations_Recipes_and_Examples




--
--
martin hepp
e-business&  web science research group
universitaet der bundeswehr muenchen

e-mail:  h...@ebusiness-unibw.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
 http://www.heppnetz.de/ (personal)
skype:   mfhepp
twitter: mfhepp

Check out GoodRelations for E-Commerce on the Web of Linked Data!
=

Project page:
http://purl.org/goodrelations/

Resources for developers:
http://www.ebusiness-unibw.org/wiki/GoodRelations

Webcasts:
Overview - http://www.heppnetz.de/projects/goodrelations/webcast/
How-to   - http://vimeo.com/7583816

Recipe for Yahoo SearchMonkey:
http://www.ebusiness-unibw.org/wiki/GoodRelations_and_Yahoo_SearchMonkey

Talk at the Semantic Technology Conference 2009:
"Semantic Web-based E-Commerce: The GoodRelations Ontology"
http://www.slideshare.net/mhepp/semantic-webbased-ecommerce-the-goodrelations-ontology-1535287

Overview article on Semantic Universe:
http://www.semanticuniverse.com/articles-semantic-web-based-e-commerce-webmasters-get-ready.html

Tutorial materials:
ISWC 2009 Tutorial: The Web of Data for E-Commerce in Brief: A Hands-on 
Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey

http://www.ebusiness-unibw.org/wiki/Web_of_Data_for_E-Commerce_Tutorial_ISWC2009

Re: KIT releases 14 billion triples to the Linked Open Data cloud

2010-04-01 Thread Martin Hepp (UniBW) 

Hi Denny:
Without spooling your All Fools' Day joke: I think it is a dangerous 
one, because there is obviously a true core in the expected criticism.


I think that without any need, you give outsiders additional ammunition 
to confirm other outsiders' prejudices against the value of linked data. 
I bet you will find lots of triples in the current LOD cloud that have 
information value close to the triples in your "experiment".


And many people communicating over the potential of the Web of Linked 
Data, and maybe deciding about business investments, will not see the 
joke in your page.


Best

Martin

PS: I miss a semantic sitemap ;-)


On 01.04.10 12:01, Denny Vrandecic wrote:

We are happy to announce that the Institute AIFB at the KIT is releasing the 
biggest dataset until now to the Linked Open Data cloud. The Linked Open 
Numbers project offers billions of facts about natural numbers, all readily 
available as Linked Data.

Our accompanying peer-reviewed paper [1] gives further details on the 
background and implementation. We have integrated with external data sources 
(linking DBpedia to all their 335 number entities) and also directly link to 
the best-known linked open data browsers from the page.

You can visit the Linked Open Numbers project at:


Or point your linked open data browser directly at:


We are happy to have increased the amount of triples on the Web by more than 14 
billion triples, roughly 87.5% of the size of linked data web before this 
release (see paper for details). We hope that the data set will find its 
serendipitous use.

The data set and the publication mechanism was checked pedantically, and we 
expect no errors in the triples. If you do find some, please let us know. We 
intend to be compatible with all major linked open data publication standards.

About the AIFB

The Institute AIFB (Applied Informatics and Formal Description Methods) at KIT 
is one of the world-leading institutions in Semantic Web technology. 
Approximately 20 researchers of the knowledge management research group are 
establishing theoretical results and scalable implementations for the field, 
closely collaborating with the sister institute KSRI (Karlsruhe Service 
Research Institute), the start-up company ontoprise GmbH, and the Knowledge 
Management group at the FZI Research Center for Information Technologies. 
Particular emphasis is given to areas such as logical foundations, Semantic Web 
mining, ontology creation engineering and management, RDF data management, 
semantic web search, and the implementation of interfaces and tools. The 
institute is involved in many industry-university co-operations, both on a 
European and a national level, including a number of intelligent Web systems 
case studies.

Website:

About KIT

The Karlsruhe Institute of Technology (KIT) is the merger of the former 
Universität Karlsruhe (TH) and the former Forschungszentrum Karlsruhe. With 
about 8000 employees and an annual budget of 700 million Euros, KIT is the 
largest technical research institution within Germany. KIT is both, a state 
university with research and teaching and, at the same time, a large-scale 
research institution of the Helmholtz Association. KIT has a strong reputation 
as one of Germany’s university of excellence, aiming to set the highest 
standards for education, research and innovation.

Website:

[1] Denny Vrandecic, Markus Krötzsch, Sebastian Rudolph, Uta Lösch: Leveraging 
Non-Lexical Knowledge for the Linked Open Data Web, published in Rodolphe 
Héliot and Antoine Zimmermann (eds.), The Fifth RAFT'2010), the yearly 
bilingual publication on nonchalant research, available at


   


--
--
martin hepp
e-business&  web science research group
universitaet der bundeswehr muenchen

e-mail:  h...@ebusiness-unibw.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
 http://www.heppnetz.de/ (personal)
skype:   mfhepp
twitter: mfhepp

Check out GoodRelations for E-Commerce on the Web of Linked Data!
=

Project page:
http://purl.org/goodrelations/

Resources for developers:
http://www.ebusiness-unibw.org/wiki/GoodRelations

Webcasts:
Overview - http://www.heppnetz.de/projects/goodrelations/webcast/
How-to   - http://vimeo.com/7583816

Recipe for Yahoo SearchMonkey:
http://www.ebusiness-unibw.org/wiki/GoodRelations_and_Yahoo_SearchMonkey

Talk at the Semantic Technology Conference 2009:
"Semantic Web-based E-Commerce: The GoodRelations Ontology"
http://www.slideshare.net/mhepp/semantic-webbased-ecommerce-the-goodrelations-ontology-1535287

Overview article on Semantic Universe:
http://www.semanticuniverse.com/art

GoodRelations Ontology: Update + New Features + New Documentation

2010-04-21 Thread Martin Hepp (UniBW) 

Dear all:

We just released a service update to the GoodRelations ontology for 
e-commerce. The update is backwards-compatible to previous releases and 
mainly adds additional properties that are important for the rental and 
accommodation business. We also redesigned the complete language reference.


Please find the latest resources from the following URIs:

* http://purl.org/goodrelations/v1 (RDF/XML or HTML via content negotiation)
* http://purl.org/goodrelations/v1.owl (RDF/XML)
* http://purl.org/goodrelations/v1.html (HTML)

A change log is at

* http://bit.ly/dhXqY9

==
!!! Please refresh your caches !!!
==


Highlights
==
- New gr:owns property for indicating the products that you own, which 
allows exposing ownership data, e.g. to feed for future recommender 
systems. So companies and individuals can now express offers 
(gr:offers), demand (gr:seeks), and ownership (gr:owns).
- Ordering relations for gr:QualitativeValues, which may be useful e.g. 
for modeling garment sizes (XL>L>M>S) (gr:greater, gr:lesser, 
gr:greaterOrEqual, gr:lesserOrEqual, gr:equal, and gr:nonEqual)
- gr:validFrom and gr:validThrough can now be applied to opening hours 
and payment / delivery charge specifications. This allows for modeling 
e.g. longer opening hours in the holiday season, or free shipping in a 
certain period.
- New properties gr:eligibleDuration, gr:eligibleTransactionVolume, 
gr:advanceBookingRequirement, gr:billingIncrement, gr:deliveryLeadTime, 
gr:availabilityStarts, and gr:availabilityEnds for being more specific 
about the offer or pricing.

* Examples:
o „Free shipping starting from 20 EURO“ (attached to a 
gr:DeliveryChargeSpecification)

o „Minimal order volume 10 Euro“ (attached to a gr:Offering)
o „Service fee for credit card payments below 10 Euro“ (attached to a 
gr:PaymentChargeSpecification)

- New property gr:serialNumber
- Ordering relations between gr:DayOfWeek, useful for sorting them in 
user interfaces and for including adjacent days (gr:hasPrevious and 
gr:hasNext).
- New properties gr:successorOf and gr:predecessorOf for linking newer 
product models (gr:ProductOrServiceModel) to discontinued ones.


Backward Compatibility Issues
=
The only minimal changes that may (but should not) affect existing data 
or code are the following:


1. We removed the rdfs:range statement for gr:legalName. It used to be 
xsd:string, but that prevented someone from indicating the natural 
language, since the language tag can only be attached to untyped RDF 
literals.


2. We changed the domain of gr:validFrom and gr:validThrough to the 
union of gr:Offering, gr:OpeningHoursSpecification, and 
gr:PriceSpecification instead of just gr:Offering and 
gr:UnitPriceSpecification. This allows specifying the validity interval 
of offers, opening hours, payment charge specifications, and delivery 
charge specifications.
All existing data remains valid. It is possible that you have to relax 
any domain validation heuristics that you apply.


Acknowledgments:
===
Special thanks go to Andreas Radinger for reviewing the specification 
and handling the deployment, and to Andreas Stolz for writing the Python 
script and templates for the language reference. Our script uses the 
RDFlib library for parsing and handling RDF and the Jinja template 
engine for generating the HTML document.


The service update in particular and the current state of GoodRelations 
in general would have been impossible without the valuable feedback and 
suggestions from many individuals.
In alphabetical order, we would like to thank Daniel Bingel, Andreas 
Harth, Kingsley Idehen, Jay Myers, Markus Linder, Peter Mika, Andreas 
Radinger, Martin Schliefnig, Alex Stolz, Jamie Taylor, Giovanni 
Tummarello, Jon Udell, and Andreas Wechselberger.



Best

Martin Hepp

--
--
martin hepp
e-business&  web science research group
universitaet der bundeswehr muenchen

e-mail:  h...@ebusiness-unibw.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
 http://www.heppnetz.de/ (personal)
skype:   mfhepp
twitter: mfhepp

Check out GoodRelations for E-Commerce on the Web of Linked Data!
=

Project page:
http://purl.org/goodrelations/

Resources for developers:
http://www.ebusiness-unibw.org/wiki/GoodRelations

Webcasts:
Overview - http://www.heppnetz.de/projects/goodrelations/webcast/
How-to   - http://vimeo.com/7583816

Recipe for Yahoo SearchMonkey:
http://www.ebusiness-unibw.org/wiki/GoodRelations_and_Yahoo_SearchMonkey

Talk at the Semantic Technology Conference 2009:
"Semantic Web-based E-Commerce: The GoodRelations Ontology"
http://www.slideshare.net/mhepp/semantic-webbased-ecommerce-the-goodrelations-ontology-1535287

Overview article on Semantic Universe:
ht

eClassOWL 5.1.4 Ontology for Products and Services

2010-04-21 Thread Martin Hepp (UniBW) 

Dear all:

eClassOWL, initially released in 2004, has since been the most 
comprehensive and mature Web ontology for types of products and 
services. It defines classes for more than 30,000 product types and more 
than 5,000 properties for product features.


Under the hood, eClassOWL is a non-trivial transformation of the e...@ss 
standard [1].


eClassOWL complements the GoodRelations ontology [2] in the sense that
- eClassOWL can be used to describe the product type and features, and
- GoodRelations can be used to describe the offer and other commercial 
aspects.


We just replaced the pretty dated documentation and primer Web page at

http://www.heppnetz.de/projects/eclassowl/

so that it better explains the interplay with GoodRelations etc. and is 
based on the current state of Web engineering.


The full theoretical background is described in [3] and [4].

Notes:
=
- eClassOWL 5.1.4 is based on eClass 5.1.4, while the latest version of 
e...@ss is now 6.1.
- We are discussing an official release of eClassOWL 6.x these days, but 
it may take a while.
- Due to backward compatibility issues, eClassOWL 5.1.4 still uses hash 
URIs and is pretty large (in total > 60,000 classes, 30 - 70 MB file 
size depending on the format). As per the nature of hash URI-based 
ontologies, any application dereferencing a single element will always 
request the full file. This will change in any future release, but is a 
limitation of the current state.
- Due to licensing issues, eClassOWL 5.1.4 is available freely for 
research purposes only. Commercial usages will require a bilateral 
agreement with e...@ss e.V.


Acknowledgments:
===
We would like to thank eClass e.V., in particular Friedhelm Hausmann and 
Thomas Einsporn, and Jos de Bruijn, doug foxvog, Axel Polleres, and Amit 
Sheth for their kind support and feedback over the seven years of the 
project. The work on eClassOWL was partly funded by Florida Gulf Cost 
University, by the European Commission under the project DIP (FP6 - 
507483), and by the Trans IT Entwicklungs- und Transfercenter at the 
University of Innsbruck.


Best wishes

Martin Hepp and Andreas Radinger

[1] http://www.eclass-online.com/
[2] http://purl.org/goodrelations/
[3] Hepp, Martin; de Bruijn, Jos: GenTax: A Generic Methodology for 
Deriving OWL and RDF-S Ontologies from Hierarchical Classifications, 
Thesauri, and Inconsistent Taxonomies, Proceedings of the 4th European 
Semantic Web Conference (ESWC 2007), June 3-7, 2007, Innsbruck, Austria, 
Springer LNCS, Vol. 4519, pp. 129-144, 2007.

PDF: http://www.heppnetz.de/files/hepp-de-bruijn-ESWC2007-gentax-CRC.pdf

[4] Hepp, Martin: Products and Services Ontologies: A Methodology for 
Deriving OWL Ontologies from Industrial Categorization Standards, in: 
Int'l Journal on Semantic Web & Information Systems (IJSWIS), Vol. 2, 
No. 1, pp. 72-99, January-March 2006.
PDF: 
http://www.heppnetz.de/files/IJSWIS-eclassOWL-APA-Style-2005-final-11-17-Web.pdf





--
--
martin hepp
e-business&  web science research group
universitaet der bundeswehr muenchen

e-mail:  h...@ebusiness-unibw.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
 http://www.heppnetz.de/ (personal)
skype:   mfhepp
twitter: mfhepp

Check out GoodRelations for E-Commerce on the Web of Linked Data!
=

Project page:
http://purl.org/goodrelations/

Resources for developers:
http://www.ebusiness-unibw.org/wiki/GoodRelations

Webcasts:
Overview - http://www.heppnetz.de/projects/goodrelations/webcast/
How-to   - http://vimeo.com/7583816

Recipe for Yahoo SearchMonkey:
http://www.ebusiness-unibw.org/wiki/GoodRelations_and_Yahoo_SearchMonkey

Talk at the Semantic Technology Conference 2009:
"Semantic Web-based E-Commerce: The GoodRelations Ontology"
http://www.slideshare.net/mhepp/semantic-webbased-ecommerce-the-goodrelations-ontology-1535287

Overview article on Semantic Universe:
http://www.semanticuniverse.com/articles-semantic-web-based-e-commerce-webmasters-get-ready.html

Tutorial materials:
ISWC 2009 Tutorial: The Web of Data for E-Commerce in Brief: A Hands-on 
Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey

http://www.ebusiness-unibw.org/wiki/Web_of_Data_for_E-Commerce_Tutorial_ISWC2009

www.shopforia.com exposes GoodRelations in RDFa for 104,000 items / 5 mio. triples

2010-04-28 Thread Martin Hepp (UniBW) 

Dear all:
I am happy to announce one of many new major sources of GoodRelations data:

http://www.shopforia.com/ recently added GoodRelations in RDFa to their 
104,000 items pages in 26 categories:


Example: 
http://www.shopforia.com/cgi-bin/apf4/apf4.cgi?Operation=ItemLookup&ItemId=B003DRBA3S


Sitemap: There seems to be no sitemap for the site, but you can 
reconstruct it by

1. crawling

http://www.shopforia.com/cgi-bin/apf4/apf4.cgi?SearchIndex=&ItemPage=
  with n = 1...400 for Category = Apparel, Beauty etc. and
2. extracting all item links, which follow the pattern

http://www.shopforia.com/cgi-bin/apf4/apf4.cgi?Operation=ItemLookup&ItemId=,
 with ASIN = e.g. B0009RL86E

Many items have EAN/UPC codes, which allows for powerful linking with 
product model data (features etc.).


I guess that the total amount of triples will be in the order of 
magnitude of 50 triples per page x 104,000 pages = 5,200,000 triples.



Best wishes

Martin Hepp

--
--
martin hepp
e-business&  web science research group
universitaet der bundeswehr muenchen

e-mail:  h...@ebusiness-unibw.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
 http://www.heppnetz.de/ (personal)
skype:   mfhepp
twitter: mfhepp

Check out GoodRelations for E-Commerce on the Web of Linked Data!
=

Project page:
http://purl.org/goodrelations/

Resources for developers:
http://www.ebusiness-unibw.org/wiki/GoodRelations

Webcasts:
Overview - http://www.heppnetz.de/projects/goodrelations/webcast/
How-to   - http://vimeo.com/7583816

Recipe for Yahoo SearchMonkey:
http://www.ebusiness-unibw.org/wiki/GoodRelations_and_Yahoo_SearchMonkey

Talk at the Semantic Technology Conference 2009:
"Semantic Web-based E-Commerce: The GoodRelations Ontology"
http://www.slideshare.net/mhepp/semantic-webbased-ecommerce-the-goodrelations-ontology-1535287

Overview article on Semantic Universe:
http://www.semanticuniverse.com/articles-semantic-web-based-e-commerce-webmasters-get-ready.html

Tutorial materials:
ISWC 2009 Tutorial: The Web of Data for E-Commerce in Brief: A Hands-on 
Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey

http://www.ebusiness-unibw.org/wiki/Web_of_Data_for_E-Commerce_Tutorial_ISWC2009

Re: www.shopforia.com exposes GoodRelations in RDFa for 104,000 items / 5 mio. triples

2010-04-28 Thread Martin Hepp (UniBW) 

Hi Constatine,

Yes, I consider that good practice.

> I can't see the benefit this might give to any agent making use of 
the triples.


owl:imports means that the model shall include all axioms from the 
imported ontologies. Often (but not always), the same effect can be 
achieved by dereferencing the URIs of all conceptual elements mentioned 
in a document.


I know that some people in the LOD community don't think owl:imports is 
necessary, but I do. There have been lengthy discussions about that, but 
basically RDFa is just one of many syntactical variants for RDF, so 
there is no strong argument for arbitrarily omitting anything.


BTW, I just found that there are some other quirks in the markup. We 
already contacted the site owner and hope he will fix them shortly.


Best
Martin




On 28.04.10 12:57, Hondros, Constantine wrote:

Looking at the example source, I'm curious what's going on here:

http://www.shopforia.com/"; 
typeof="owl:Ontology">
http://www.w3.org/2006/vcard/ns";>
http://purl.org/goodrelations/v1";>

Is this considered good practise? I can't see the benefit this might give to 
any agent making use of the triples.

-Original Message-
From: public-lod-requ...@w3.org [mailto:public-lod-requ...@w3.org] On Behalf Of 
Martin Hepp (UniBW)
Sent: 28 April 2010 11:07
To: public-lod@w3.org
Subject: www.shopforia.com exposes GoodRelations in RDFa for 104,000 items / 5 
mio. triples

Dear all:
I am happy to announce one of many new major sources of GoodRelations data:

http://www.shopforia.com/ recently added GoodRelations in RDFa to their 104,000 
items pages in 26 categories:

Example:
http://www.shopforia.com/cgi-bin/apf4/apf4.cgi?Operation=ItemLookup&ItemId=B003DRBA3S

Sitemap: There seems to be no sitemap for the site, but you can reconstruct it 
by 1. crawling
 
http://www.shopforia.com/cgi-bin/apf4/apf4.cgi?SearchIndex=&ItemPage=
   with n = 1...400 for Category = Apparel, Beauty etc. and 2. extracting all item links, which 
follow the pattern
 
http://www.shopforia.com/cgi-bin/apf4/apf4.cgi?Operation=ItemLookup&ItemId=,
 with ASIN = e.g. B0009RL86E

Many items have EAN/UPC codes, which allows for powerful linking with product 
model data (features etc.).

I guess that the total amount of triples will be in the order of magnitude of 
50 triples per page x 104,000 pages = 5,200,000 triples.


Best wishes

Martin Hepp

--
--
martin hepp
e-business&   web science research group
universitaet der bundeswehr muenchen

e-mail:  h...@ebusiness-unibw.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
   http://www.heppnetz.de/ (personal)
skype:   mfhepp
twitter: mfhepp

Check out GoodRelations for E-Commerce on the Web of Linked Data!
=

Project page:
http://purl.org/goodrelations/

Resources for developers:
http://www.ebusiness-unibw.org/wiki/GoodRelations

Webcasts:
Overview - http://www.heppnetz.de/projects/goodrelations/webcast/
How-to   - http://vimeo.com/7583816

Recipe for Yahoo SearchMonkey:
http://www.ebusiness-unibw.org/wiki/GoodRelations_and_Yahoo_SearchMonkey

Talk at the Semantic Technology Conference 2009:
"Semantic Web-based E-Commerce: The GoodRelations Ontology"
http://www.slideshare.net/mhepp/semantic-webbased-ecommerce-the-goodrelations-ontology-1535287

Overview article on Semantic Universe:
http://www.semanticuniverse.com/articles-semantic-web-based-e-commerce-webmasters-get-ready.html

Tutorial materials:
ISWC 2009 Tutorial: The Web of Data for E-Commerce in Brief: A Hands-on
Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey
http://www.ebusiness-unibw.org/wiki/Web_of_Data_for_E-Commerce_Tutorial_ISWC2009




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--
--
martin hepp
e-business&  web science research group
universitaet der bundeswehr muenchen

e-mail:  h...@ebusiness-unibw.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
 http://www.heppnetz.de/ (per

GoodRelations vs. Google RDFa vs. Open Graph vs. hProduct/hListing: Using GoodRelations in 10 Triples

2010-05-03 Thread Martin Hepp (UniBW) 

Dear all:

Some people think that the GoodRelations ontology for e-commerce 
(http://purl.org/goodrelations/) is powerful, but complex.
I think it is important for everybody in the community to know that 
GoodRelations can be as simple (or simpler) than any more lightweight 
approach for product markup, as long as you compare the same level of 
granularity.


Below, please find an example of offering a car for sales in just ten 
(!) triples.


Of course, you can do more with GoodRelations than just encoding a price 
and carrying the semantics of the product itself in a string.


The important message in here is that simple chunks of data are as 
simple in GoodRelations as they are in hProduct/hListing microformats, 
Google's RDFa vocabulary, or the Open Graph product markup.


The key difference is that GoodRelations has a much more extensible and, 
in my biased ;-) judgement: cleaner, conceptual model so that IF you 
have more granular data available, THEN you can expose it, and make your 
products more findable on the Web.


For example, GoodRelations distinguishes between products and product 
models / datasheets. That allows for powerful linking between individual 
items and rich technical specifications from the manufacturer's page.


The Open Graph approach seems to use a plain "topic" semantics, which 
mixes items, datasheets, and offers.


Please keep that in mind and spread the word.

Here is the markup.

Best wishes

Martin


Turtle/N3:
=
@prefix foo:  .
@prefix gr:  .
@prefix xsd:  .
@prefix rdfs:  .

foo:company a gr:BusinessEntity;
gr:legalName "Hepp Space Ventures Inc.";
gr:offers foo:offering.

foo:offering a gr:Offering;
rdfs:label "Volkswagen Station Wagon, 4WD, 400 $"@en;
rdfs:description "I sell my old Volkswagen Station Wagon, 4WD, for 
400 $"@en;

gr:hasPriceSpecification
[ a gr:UnitPriceSpecification;
gr:hasCurrencyValue "400"^^xsd:string;
gr:hasCurrency "USD"^^xsd:string. ].

RDFa:

http://www.w3.org/1999/02/22-rdf-syntax-ns#"; 
xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"; 
xmlns="http://www.w3.org/1999/xhtml"; 
xmlns:gr="http://purl.org/goodrelations/v1#"; 
xmlns:foo="http://www.example.com/xyz#"; 
xmlns:xsd="http://www.w3.org/2001/XMLSchema#";>

http://www.example.com/xyz#company"; typeof="gr:BusinessEntity">


http://www.example.com/xyz#offering"; typeof="gr:Offering">






datatype="xsd:string">








RDF/XML:
===


http://purl.org/goodrelations/v1#"; 
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"; 
xmlns:foo="http://www.example.com/xyz#"; 
xmlns:xsd="http://www.w3.org/2001/XMLSchema#"; 
xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#";>

http://www.example.com/xyz#company";>
Hepp Space Ventures Inc.

http://www.example.com/xyz#offering";>
Volkswagen Station Wagon, 4WD, 400 $
I sell my old Volkswagen Station Wagon, 
4WD, for 400 $



rdf:datatype="http://www.w3.org/2001/XMLSchema#string";>400
rdf:datatype="http://www.w3.org/2001/XMLSchema#string";>USD













--
--
martin hepp
e-business&  web science research group
universitaet der bundeswehr muenchen

e-mail:  h...@ebusiness-unibw.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
 http://www.heppnetz.de/ (personal)
skype:   mfhepp
twitter: mfhepp

Check out GoodRelations for E-Commerce on the Web of Linked Data!
=

Project page:
http://purl.org/goodrelations/

Resources for developers:
http://www.ebusiness-unibw.org/wiki/GoodRelations

Webcasts:
Overview - http://www.heppnetz.de/projects/goodrelations/webcast/
How-to   - http://vimeo.com/7583816

Recipe for Yahoo SearchMonkey:
http://www.ebusiness-unibw.org/wiki/GoodRelations_and_Yahoo_SearchMonkey

Talk at the Semantic Technology Conference 2009:
"Semantic Web-based E-Commerce: The GoodRelations Ontology"
http://www.slideshare.net/mhepp/semantic-webbased-ecommerce-the-goodrelations-ontology-1535287

Overview article on Semantic Universe:
http://www.semanticuniverse.com/articles-semantic-web-based-e-commerce-webmasters-get-ready.html

Tutorial materials:
ISWC 2009 Tutorial: The Web of Data for E-Commerce in Brief: A Hands-on 
Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey

http://www.ebusiness-unibw.org/wiki/Web_of_Data_for_E-Commerce_Tutorial_ISWC2009

Re: GoodRelations vs. Google RDFa vs. Open Graph vs. hProduct/hListing: Using GoodRelations in 10 Triples

2010-05-03 Thread Martin Hepp (UniBW) 

Apologies - There were a few minor bugs in the initial markup:
- I forgot the business function.
- The datatype for the price was xsd:string instead of xsd:float.
- The legal name had no language tag.

The correct examples are at

http://ebusiness-unibw.org/pipermail/goodrelations/2010-May/000215.html


On 03.05.10 10:38, Martin Hepp (UniBW) wrote:

Dear all:

Some people think that the GoodRelations ontology for e-commerce 
(http://purl.org/goodrelations/) is powerful, but complex.
I think it is important for everybody in the community to know that 
GoodRelations can be as simple (or simpler) than any more lightweight 
approach for product markup, as long as you compare the same level of 
granularity.


Below, please find an example of offering a car for sales in just ten 
(!) triples.


Of course, you can do more with GoodRelations than just encoding a 
price and carrying the semantics of the product itself in a string.


The important message in here is that simple chunks of data are as 
simple in GoodRelations as they are in hProduct/hListing microformats, 
Google's RDFa vocabulary, or the Open Graph product markup.


The key difference is that GoodRelations has a much more extensible 
and, in my biased ;-) judgement: cleaner, conceptual model so that IF 
you have more granular data available, THEN you can expose it, and 
make your products more findable on the Web.


For example, GoodRelations distinguishes between products and product 
models / datasheets. That allows for powerful linking between 
individual items and rich technical specifications from the 
manufacturer's page.


The Open Graph approach seems to use a plain "topic" semantics, which 
mixes items, datasheets, and offers.


Please keep that in mind and spread the word.

Here is the markup.

Best wishes

Martin




--
--
martin hepp
e-business&  web science research group
universitaet der bundeswehr muenchen

e-mail:  h...@ebusiness-unibw.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
 http://www.heppnetz.de/ (personal)
skype:   mfhepp
twitter: mfhepp

Check out GoodRelations for E-Commerce on the Web of Linked Data!
=

Project page:
http://purl.org/goodrelations/

Resources for developers:
http://www.ebusiness-unibw.org/wiki/GoodRelations

Webcasts:
Overview - http://www.heppnetz.de/projects/goodrelations/webcast/
How-to   - http://vimeo.com/7583816

Recipe for Yahoo SearchMonkey:
http://www.ebusiness-unibw.org/wiki/GoodRelations_and_Yahoo_SearchMonkey

Talk at the Semantic Technology Conference 2009:
"Semantic Web-based E-Commerce: The GoodRelations Ontology"
http://www.slideshare.net/mhepp/semantic-webbased-ecommerce-the-goodrelations-ontology-1535287

Overview article on Semantic Universe:
http://www.semanticuniverse.com/articles-semantic-web-based-e-commerce-webmasters-get-ready.html

Tutorial materials:
ISWC 2009 Tutorial: The Web of Data for E-Commerce in Brief: A Hands-on 
Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey
http://www.ebusiness-unibw.org/wiki/Web_of_Data_for_E-Commerce_Tutorial_ISWC2009

Re: GoodRelations vs. Google RDFa vs. Open Graph vs. hProduct/hListing: Using GoodRelations in 10 Triples

2010-05-03 Thread Martin Hepp (UniBW) 

Hi Henry,
Thanks for your feedback!

>I wonder if the following could make it even simpler though:

First I think, why not make the currency a literal?

foo:offering a gr:Offering;
rdfs:label "Volkswagen Station Wagon, 4WD, 400 $"@en;
rdfs:description "I sell my old Volkswagen Station Wagon, 4WD, for 400 
$"@en;
gr:hasPriceSpecification
[ a gr:UnitPriceSpecification;
gr:value "400"^^gr:USD;
] .

When you have a relation from a string to a value, you have a literal. monetary 
values are good
examples it seems to me of this. It would remove at least three of your URL 
usages, as you had
to specify the xsd:string twice, and also the type of the currency.
   
There are several reasons for using the current GoodRelations pattern. 
The most important one is that GoodRelations represents all point values 
internally as intervals, in order to support reasoning over ranges with 
simple RDFS-style reasoners. As for prices, that has been an explicit 
request from the hotel domain.


So gr:hasCurrencyValue is an rdfs:subPropertyOf gr:hasMaxCurrencyValue 
AND of gr:hasMinCurrencyValue. This gives a nice coherent model for 
point values and intervals, without the need for a SPARQL endpoint and 
either a bit of RDFS-style reasoning or a bit of SPARQL query expansion.


Example:
# 3..4 USD per kilogram, e.g. depending on the size of the potatoes
foo:price a gr:UnitPriceSpecification ;
gr:hasCurrency "USD"^^xsd:string ;
gr:hasMinCurrencyValue "3.0"^^xsd:float ;
gr:hasMaxCurrencyValue "4.0"^^xsd:float ;
gr:hasUnitOfMeasurement "KGM"^^xsd:string ;
gr:valueAddedTaxIncluded "true"^^xsd:boolean .

# 4 USD per kilogram
foo:price a gr:UnitPriceSpecification ;
gr:hasCurrency "USD"^^xsd:string ;
gr:hasCurrencyValue "4.0"^^xsd:float ;
gr:hasUnitOfMeasurement "KGM"^^xsd:string ;
gr:valueAddedTaxIncluded "true"^^xsd:boolean .

Both will work with the following query:

# find something that has a price or upper price limit of less than 4 
USD / kg


SELECT ?offer WHERE
{
?offer a gr:Offering .
?offer gr:hasPriceSpecification ?p .
?p gr:hasMaxCurrencyValue ?v .
?p gr:hasCurrency "USD"^^xsd:string .
?p gr:UnitOfMeasurement "KGM"^^xsd:string .
FILTER (?p <= "4")
}

The important message is that, without any domain-specific tweak of the 
GoodRelations vocabulary, you can model things as simple as this


foo:offering a gr:Offering;
rdfs:label "Volkswagen Station Wagon, 4WD, 400 $"@en;
rdfs:comment "I sell my old Volkswagen Station Wagon, 4WD, for 400 
$"@en;

gr:hasBusinessFunction gr:Sell;
gr:hasPriceSpecification
[ a gr:UnitPriceSpecification;
gr:hasCurrencyValue "400"^^xsd:float;
gr:hasCurrency "USD"^^xsd:string. ].

and as fine-granular as this:

# Boat Rental: 24 USD / 6 hours for 0-3 days, 75 USD per day for any 
longer rental


foo:company a gr:BusinessEntity ;
gr:legalName "Hepp Space Ventures, Inc."@en ;
gr:offers foo:boat_offer.

foo:boat_offer a gr:Offering ;
rdfs:label "Boat rental"@en ;
rdfs:comment "We rent out boats"@en ;
gr:hasBusinessFunction gr:LeaseOut ;
gr:hasPriceSpecification foo:rental_price1, foo:rental_price2 .

foo:rental_price1 a gr:UnitPriceSpecification ;
gr:hasCurrency "USD"^^xsd:string ;
# 24 USD per 6 hours => 4 USD / hour
gr:hasCurrencyValue "4"^^xsd:float ;
gr:hasUnitOfMeasurement "HUR"^^xsd:string ;
gr:billingIncrement "6"^^xsd:float
gr:valueAddedTaxIncluded "true"^^xsd:boolean ;
gr:hasEligibleQuantity [ a gr:QuantitativeValueInteger ;
gr:hasUnitOfMeasurement "DAY"^^xsd:string ;
gr:hasMinValueInteger "0"^^xsd:int ;
gr:hasMaxValueInteger "3"^^xsd:int . ].

foo:rental_price2 a gr:UnitPriceSpecification ;
gr:hasCurrency "USD"^^xsd:string ;
gr:hasCurrencyValue "75"^^xsd:float ;
gr:hasUnitOfMeasurement "DAY"^^xsd:string ;
gr:valueAddedTaxIncluded "true"^^xsd:boolean ;
gr:hasEligibleQuantity [ a gr:QuantitativeValueInteger ;
gr:hasUnitOfMeasurement "DAY"^^xsd:string ;
gr:hasMinValueInteger "4"^^xsd:int . ].

And both use the same set of conceptual elements, and will basically 
trigger the very same SPARQL queries. That is a major difference to any 
other conceptual approach for product / offer data on the Web - to keep 
the simple things simple while supporting the very complex cases off the 
box.



Also in your example you could put the company in a different file, and refer 
to it by
reference.
Yes, I agree. In particular, in RDFa one will use the rev attribute to 
do that.



Best

Martin


--
--
martin hepp
e-business&  web science research group
universitaet der bundeswehr muenchen

e-mail:h...@ebusiness-unibw.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www:http://www.unibw.de/ebusiness/  (group)

Re: GoodRelations vs. Google RDFa vs. Open Graph vs. hProduct/hListing: Using GoodRelations in 10 Triples

2010-05-03 Thread Martin Hepp (UniBW) 
FYI - This may also be of interest for anybody of you working on linked 
data for e-commerce.


Best

Martin Hepp

 Original Message 
Subject: More examples of modeling price information with GoodRelations
Date: Mon, 03 May 2010 17:47:48 +0200
From: Martin Hepp (UniBW) 
Reply-To: martin.h...@ebusiness-unibw.org
Organization: http://www.heppnetz.de
To: goodrelations 


Dear all:

I just completed a new GoodRelations recipe that describes how
GoodRelations can be used to model price information in more detail, e.g.
- quantity discounts,
- seasonal discounts and special offers,
- billing increments,
- price ranges,
- combining flat and metered price components ("25 USD / day plus 1 USD
per mile"), and
- cancellation policies.

Please check
http://www.ebusiness-unibw.org/wiki/GoodRelationsPricing

Best wishes

Martin Hepp




--
--
martin hepp
e-business&  web science research group
universitaet der bundeswehr muenchen

e-mail:  h...@ebusiness-unibw.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
 http://www.heppnetz.de/ (personal)
skype:   mfhepp
twitter: mfhepp

Check out GoodRelations for E-Commerce on the Web of Linked Data!
=

Project page:
http://purl.org/goodrelations/

Resources for developers:
http://www.ebusiness-unibw.org/wiki/GoodRelations

Webcasts:
Overview - http://www.heppnetz.de/projects/goodrelations/webcast/
How-to   - http://vimeo.com/7583816

Recipe for Yahoo SearchMonkey:
http://www.ebusiness-unibw.org/wiki/GoodRelations_and_Yahoo_SearchMonkey

Talk at the Semantic Technology Conference 2009:
"Semantic Web-based E-Commerce: The GoodRelations Ontology"
http://www.slideshare.net/mhepp/semantic-webbased-ecommerce-the-goodrelations-ontology-1535287

Overview article on Semantic Universe:
http://www.semanticuniverse.com/articles-semantic-web-based-e-commerce-webmasters-get-ready.html

Tutorial materials:
ISWC 2009 Tutorial: The Web of Data for E-Commerce in Brief: A Hands-on 
Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey
http://www.ebusiness-unibw.org/wiki/Web_of_Data_for_E-Commerce_Tutorial_ISWC2009

Call for Papers: First International Workshop on Micro-Contributions by the Masses - The Future of Tagging and Microblogging (TAGS 2010)

2010-05-25 Thread Martin Hepp (UniBW) 

[Apologies if you receive multiple copies of this message]

Call for Papers:
---
First International Workshop on Micro-Contributions by the Masses -
The Future of Tagging and Microblogging (TAGS 2010)

in conjunction with the

17th International Conference on "Knowledge Engineering and Knowledge
Management by the Masses" (EKAW 2010)

Lisbon, Portugal, October 11-15, 2010

Web: http://delicias.dia.fi.upm.es/tags2010/
Contact: tags2...@delicias.dia.fi.upm.es



Important Dates:

Deadline for submissions: July 11, 2010
Notification of acceptance:   August 8, 2010
Camera-ready versions:August 22, 2010
Workshop day: October 14, 2010 (to be confirmed)

Types of Submissions:

Format: Springer LNCS
Full Papers: 10 pages
Short and Position Papers: 5 pages
Demo Descriptions: 2 pages
Poster Abstracts: 2 pages



Theme and Objectives:

Tagging systems have received a lot of research interest by various
disciplines, ranging from computer science to linguistics, sociology, and
Semantic Web communities. Despite many significant contributions, however,
there is still a limited understanding of key technological, social,
and societal aspects of tagging, as well as a lack of a coherent
model of the overall processes.

This workshop aims at advancing the state of research on tagging, in
particular in the context of microblogging services, semantics, and social
computing applications.

A particular emphasis of the workshop is on
(1) the future of semantic tagging systems,
(2) tagging in stream data and microblogging services (e.g. Twitter), and
(3) challenges in evaluating tagging systems.

Submissions:
---
We invite the submission of research and position papers, demo descriptions,
and posters. Relevant topic include but are not limited to:

-  Perspectives on the future of tagging systems
-  Extensions to the conceptual model of tagging
-  Tagging, semantics, and linked data
-  Tagging in enterprise environments
-  Tagging systems versus controlled vocabularies
-  Information retrieval in tagging systems
-  Tagging and augmented reality
-  Experiences and best practices for tagging
-  Social aspects of tagging
-  Dynamics and evolution in tagging systems
-  Ontology learning from tagging systems
-  Reference data and metrics for evaluating semantic tagging systems
-  Social Network Analysis based on tagging systems
-  Techniques for recommending tags or resources
-  Differences between tagging in established Web 2.0 applications and 
tags in

   microblogging services or stream data
-  Mining user profiles from tagging data
-  Tagging people and identities
-  Multi-lingual aspects of tagging systems
-  User-feedback in tagging systems

Submissions will be reviewed by at least two members of the Program 
Committee.

All reviews will be single-blind.

Submissions must be uploaded as PDF documents to the EasyChair system at

   http://www.easychair.org/conferences/?conf=tags2010

Accepted papers will be published in the CEUR WS Proceedings series, usually
indexed by DBLP and other databases. All papers must be formatted using the
Springer LNCS template, see http://www.springer.de/comp/lncs/authors.html.

Full papers should be 10 pages, short and position papers up to 5 pages, and
poster and demos descriptions 2 pages in length.

For accepted submissions, at least one author must register for the workshop
and the main conference in order for the paper to be included in the 
proceedings

and to be scheduled in the workshop program.

Current information on the workshop is available at
   http://delicias.dia.fi.upm.es/tags2010/

Current information on the venue, registration, hotels, and related 
events will

shortly be available at
   http://ekaw2010.inesc-id.pt/

Organizing Committee and Main Contact:
-
Main Contact: tags2...@delicias.dia.fi.upm.es

Sofia Angeletou,
Knowledge Media Institute, The Open University (KMi), Milton Keynes, UK

Leyla Jael Garcia Castro,
E-Business and Web Science Research Group,
Universitaet der Bundeswehr Muenchen, Germany

Andres Garcia-Silva,
Ontology Engineering Group, Universidad Politecnica de Madrid (UPM), Spain

Martin Hepp,
E-Business and Web Science Research Group,
Universitaet der Bundeswehr, Muenchen, Germany

Alexandre Passant,
Digital Enterprise Research Institute, National University of Ireland, 
Galway


Program Committee:
-
Rabeeh Abbasi, Koblenz University, Germany
Harith Alani, Knowledge Media Institute, The Open University (KMi), UK
Sihem Amer-Yahia, Yahoo! Research New York, USA
Dominik Benz, Universitaet Kassel, Germany
Klaas Delschaft, Koblenz University, Germany
Ivan Cantador, Universidad Autonoma de Madrid, Spain
Oscar Corcho, Universidad Politecnica de Madrid, Spain
Eir

New Snippet Generator for GoodRelations Markup in HTML/RDFa

2010-05-26 Thread Martin Hepp (UniBW) 

Dear all:

Alex Stolz developed an excellent new tool that simplifies adding 
GoodRelations markup in RDFa to any business Web page:


http://www.ebusiness-unibw.org/tools/grsnippetgen/

It returns customized but short and handy snippets of additional 
HTML/RDFa markup that can be inserted into any Web page by simple 
copy-and-paste.



Please point all Web developers in your social network to this new 
resource ;-)


Best wishes

Martin Hepp

--

--
martin hepp
e-business&  web science research group
universitaet der bundeswehr muenchen

e-mail:  h...@ebusiness-unibw.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
 http://www.heppnetz.de/ (personal)
skype:   mfhepp
twitter: mfhepp

Check out GoodRelations for E-Commerce on the Web of Linked Data!
=

Project page:
http://purl.org/goodrelations/

Resources for developers:
http://www.ebusiness-unibw.org/wiki/GoodRelations

Webcasts:
Overview - http://www.heppnetz.de/projects/goodrelations/webcast/
How-to   - http://vimeo.com/7583816

Recipe for Yahoo SearchMonkey:
http://www.ebusiness-unibw.org/wiki/GoodRelations_and_Yahoo_SearchMonkey

Talk at the Semantic Technology Conference 2009:
"Semantic Web-based E-Commerce: The GoodRelations Ontology"
http://www.slideshare.net/mhepp/semantic-webbased-ecommerce-the-goodrelations-ontology-1535287

Overview article on Semantic Universe:
http://www.semanticuniverse.com/articles-semantic-web-based-e-commerce-webmasters-get-ready.html

Tutorial materials:
ISWC 2009 Tutorial: The Web of Data for E-Commerce in Brief: A Hands-on 
Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey

http://www.ebusiness-unibw.org/wiki/Web_of_Data_for_E-Commerce_Tutorial_ISWC2009

Powerful XHTML+RDFa templates for GoodRelations

2010-06-07 Thread Martin Hepp (UniBW) 

Dear all:

I just released a set of very powerful templates for generating 
GoodRelations data in RDFa and RDF/XML.


See

http://code.google.com/p/templates4goodrelations/
http://www.ebusiness-unibw.org/wiki/GoodRelationsTemplates

Key features:
* Compatible with all Django-style templating engines, e.g.
- Jinja2 (Python)
- Django (Python)
- Google App Engine
- H2O Template Engine (PHP)
* XHTML 1.0 Strict compatible
* Rich RDFa patterns
* Yahoo Searchmonkey compatible
* LPGL license

The package includes templates for RDF/XML data dump files and 
sitemap.xml with Semantic Sitemap extension support.
This allows developers on any platform with any programming language to 
generate fully-fledged e-commerce data for the Web of Linked Data with 
minimal requirements.


Basically any HTML templating engine will do (with minor modifications, 
in worst case).


I expect that this approach will reduce the entrance barriers for 
mainstream Web developers significantly.


Best wishes

Martin Hepp
--

--
martin hepp
e-business&  web science research group
universitaet der bundeswehr muenchen

e-mail:  h...@ebusiness-unibw.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
 http://www.heppnetz.de/ (personal)
skype:   mfhepp
twitter: mfhepp

Check out GoodRelations for E-Commerce on the Web of Linked Data!
=

Project page:
http://purl.org/goodrelations/

Resources for developers:
http://www.ebusiness-unibw.org/wiki/GoodRelations

Webcasts:
Overview - http://www.heppnetz.de/projects/goodrelations/webcast/
How-to   - http://vimeo.com/7583816

Recipe for Yahoo SearchMonkey:
http://www.ebusiness-unibw.org/wiki/GoodRelations_and_Yahoo_SearchMonkey

Talk at the Semantic Technology Conference 2009:
"Semantic Web-based E-Commerce: The GoodRelations Ontology"
http://www.slideshare.net/mhepp/semantic-webbased-ecommerce-the-goodrelations-ontology-1535287

Overview article on Semantic Universe:
http://www.semanticuniverse.com/articles-semantic-web-based-e-commerce-webmasters-get-ready.html

Tutorial materials:
ISWC 2009 Tutorial: The Web of Data for E-Commerce in Brief: A Hands-on 
Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey

http://www.ebusiness-unibw.org/wiki/Web_of_Data_for_E-Commerce_Tutorial_ISWC2009

Please stop massive crawling against http://openean.kaufkauf.net/id/

2010-06-08 Thread Martin Hepp (UniBW) 

Dear all:

The volunteer who is hosting http://openean.kaufkauf.net/id/, a huge set 
of GoodRelations product model data, is experiencing a problematic 
amount of traffic from unidentified crawlers located in Ireland (DERI?), 
the Netherlands (VUA?), and the USA.


The crawling has been so intense that he had to temporarily block all 
traffic to this dataset.


In case you are operating any kind of Semantic Web crawlers that tried 
to access this dataset, please


1. check your crawler for bugs that create excessive traffic (e.g. by 
redundant requests),
2. identify your crawler agent properly in the HTTP header, indicating a 
contact person, and
3. implement some bandwidth throttling technique that limits the 
bandwidth consumption on a single host to a moderate amount.


Note that the full dataset is always up to date in the LOD SPARQL 
endpoint at


http://lod.openlinksw.com/sparql

Thus, there is rarely a need to crawl the complete dataset.

Thanks for your consideration.

Best wishes

Martin Hepp

--

--
--
martin hepp
e-business&  web science research group
universitaet der bundeswehr muenchen

e-mail:  h...@ebusiness-unibw.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
 http://www.heppnetz.de/ (personal)
skype:   mfhepp
twitter: mfhepp

Check out GoodRelations for E-Commerce on the Web of Linked Data!
=

Project page:
http://purl.org/goodrelations/

Resources for developers:
http://www.ebusiness-unibw.org/wiki/GoodRelations

Webcasts:
Overview - http://www.heppnetz.de/projects/goodrelations/webcast/
How-to   - http://vimeo.com/7583816

Recipe for Yahoo SearchMonkey:
http://www.ebusiness-unibw.org/wiki/GoodRelations_and_Yahoo_SearchMonkey

Talk at the Semantic Technology Conference 2009:
"Semantic Web-based E-Commerce: The GoodRelations Ontology"
http://www.slideshare.net/mhepp/semantic-webbased-ecommerce-the-goodrelations-ontology-1535287

Overview article on Semantic Universe:
http://www.semanticuniverse.com/articles-semantic-web-based-e-commerce-webmasters-get-ready.html

Tutorial materials:
ISWC 2009 Tutorial: The Web of Data for E-Commerce in Brief: A Hands-on 
Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey
http://www.ebusiness-unibw.org/wiki/Web_of_Data_for_E-Commerce_Tutorial_ISWC2009

Re: Share, Like Ontology

2010-06-11 Thread Martin Hepp (UniBW) 

Hi Nathan,

If "like" means "interest in obtaining", then I recommend gr:seeks

http://purl.org/goodrelations/v1#seeks

This may be a bit stronger than what you originally intended, but on the 
other hand, what else would be a useful, precise meaning of liking 
something be in a business context?


If your "like" should be "hey, I own this product and want to tell the 
world", you can use gr:owns to expose ownership:


http://purl.org/goodrelations/v1#owns

Best
Martin

On 11.06.10 17:29, Nathan wrote:

Hi All,

Before I give it a quick go, has anybody created an ontology for 
likes, resharing things etc ?


Best,

Nathan




--
--
martin hepp
e-business&  web science research group
universitaet der bundeswehr muenchen

e-mail:  h...@ebusiness-unibw.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
 http://www.heppnetz.de/ (personal)
skype:   mfhepp
twitter: mfhepp

Check out GoodRelations for E-Commerce on the Web of Linked Data!
=

Project page:
http://purl.org/goodrelations/

Resources for developers:
http://www.ebusiness-unibw.org/wiki/GoodRelations

Webcasts:
Overview - http://www.heppnetz.de/projects/goodrelations/webcast/
How-to   - http://vimeo.com/7583816

Recipe for Yahoo SearchMonkey:
http://www.ebusiness-unibw.org/wiki/GoodRelations_and_Yahoo_SearchMonkey

Talk at the Semantic Technology Conference 2009:
"Semantic Web-based E-Commerce: The GoodRelations Ontology"
http://www.slideshare.net/mhepp/semantic-webbased-ecommerce-the-goodrelations-ontology-1535287

Overview article on Semantic Universe:
http://www.semanticuniverse.com/articles-semantic-web-based-e-commerce-webmasters-get-ready.html

Tutorial materials:
ISWC 2009 Tutorial: The Web of Data for E-Commerce in Brief: A Hands-on 
Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey
http://www.ebusiness-unibw.org/wiki/Web_of_Data_for_E-Commerce_Tutorial_ISWC2009

Support for Linked Data for E-Commerce in DotNetNuke Shop Software / GoodRelations

2010-06-30 Thread Martin Hepp (UniBW) 

Dear all:

The latest release of the NB_Store module [1] for e-commerce sites based 
on DotNetNuke CMS [2] seems to support GoodRelations in RDFa.


See here for details:

http://nbstore.codeplex.com/releases/view/45017

The underlying DotNetNuke CMS is said to power over 600,000 production 
web sites.


I would be very interested in URIs of shops that are using this latest 
version of NB_Store or experience reports.


Best wishes

Martin Hepp

[1] http://nbstore.codeplex.com/

[2] http://www.dotnetnuke.com/

--
--
martin hepp
e-business&  web science research group
universitaet der bundeswehr muenchen

e-mail:  h...@ebusiness-unibw.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
 http://www.heppnetz.de/ (personal)
skype:   mfhepp
twitter: mfhepp

Check out GoodRelations for E-Commerce on the Web of Linked Data!
=

Project page:
http://purl.org/goodrelations/

Resources for developers:
http://www.ebusiness-unibw.org/wiki/GoodRelations

Webcasts:
Overview - http://www.heppnetz.de/projects/goodrelations/webcast/
How-to   - http://vimeo.com/7583816

Recipe for Yahoo SearchMonkey:
http://www.ebusiness-unibw.org/wiki/GoodRelations_and_Yahoo_SearchMonkey

Talk at the Semantic Technology Conference 2009:
"Semantic Web-based E-Commerce: The GoodRelations Ontology"
http://www.slideshare.net/mhepp/semantic-webbased-ecommerce-the-goodrelations-ontology-1535287

Overview article on Semantic Universe:
http://www.semanticuniverse.com/articles-semantic-web-based-e-commerce-webmasters-get-ready.html

Tutorial materials:
ISWC 2009 Tutorial: The Web of Data for E-Commerce in Brief: A Hands-on 
Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey

http://www.ebusiness-unibw.org/wiki/Web_of_Data_for_E-Commerce_Tutorial_ISWC2009

ANN: BauDataWeb: The European Building and Construction Materials Dataset for the Semantic Web

2010-07-12 Thread Martin Hepp (UniBW) 

Dear all:

I am glad to announce the official release of BauDataWeb, the European 
building and construction materials database for the Semantic Web:


URI: http://semantic.eurobau.com/

With this project, we expose a major dataset reflecting the European 
building and construction materials market on the basis of the 
GoodRelations Web Vocabulary for E-Commerce. This allows for the 
fine-grained search for products, suppliers, and warehouses for any 
building-related sourcing need.


BauDataWeb is one of the densest and richest public datasets for a 
well-defined vertical business sector that is available on the Semantic 
Web. It covers a major share of the European market for construction and 
building materials.


Key distinctions from other datasets are:

1. The market for building materials shows a very high item specificity, 
which makes it very interesting for new types of search.


2. Transportation costs for building materials are usually very 
significant, which makes the distance from the warehouse to the point of 
consumption a critical dimension of search.


3. A large part of the items includes a rich, machine-readable 
description of product features using the FreeClassOWL ontology.


We expect that the data can be very well combined with other related 
datasets on the Web of Linked Data, e.g.


  * dbPedia information about population or transportation infrastructure,
  * governmental information, or
  * real estate offers.

Features


   * Over 60 million triples of real business data with a high domain 
density

   * Fully GoodRelations-compliant
   * Fully W3C-compliant
   * Geo data for warehouse locations
   * FreeClassOWL product classes and properties for a majority of the 
products


Components
==
1. Dataset: The full data is available in RDF. The data consists of ca. 
1.5 million individual RDF/XML files plus a few large data dumps in 
N-Triples syntax that simplify the crawling of all data at once. For 
fetching the dataset, please use the sitemap at 
http://semantic.eurobau.com/sitemap.xml.


2. FreeClassOWL: A GoodRelations-compliant ontology for describing 
construction and building materials and services

   * HTML: http://www.freeclass.eu/freeclass_v1.html
   * OWL in RDF/XML: http://www.freeclass.eu/freeclass_v1.owl

3. The Eurobau Utility Ontology, which defines a few extensions to 
GoodRelations for the particular vertical domain
   * OWL in RDF/XML: http://semantic.eurobau.com/eurobau-utility.owl 
(no other representation available at the moment)


4. A (simple) demo application that demonstrates queries combining 
product features and warehouse distance

   * http://www.ebusiness-unibw.org/tools/freeclass-search/

SPARQL Access
=
Currently, the data is available for SPARQL queries via the OpenLink 
Software Virtuoso repositories at

* http://lod.openlinksw.com/sparql and
* http://linkeddata.uriburner.com/sparql

Statistics
==
   * 81 Manufacturers / Brands
   * 19 Resellers
   * 183 Warehouse locations in Austria
   * 56.360 Product types (including variants)
   * 1.783.798 Offerings
   * 95 % of the product models include rich FreeClassOWL descriptions, 
e.g. class membership and properties


Acknowledgments
===
BauDataWeb is a joint project by inndata Datentechnik GmbH and the 
E-Business & Web Science Research Group at Universität der Bundeswehr 
München. The data conversion and implementation was carried out by 
Andreas Radinger and Martin Hepp at the E-Business & Web Science 
Research Group at the Universität der Bundeswehr München, Germany. The 
underlying relational database has been designed by Otto Handle and is 
being maintained and operated by inndata Datentechnik GmbH.
The work on BauDataWeb was partially funded by the Austrian FFG under 
the project grant "icontent.document" (grant no. 819773). Thanks go also 
to Kingsley Idehen from OpenLink Software for hosting the data.



Best wishes

Martin Hepp

--
--
martin hepp
e-business&  web science research group
universitaet der bundeswehr muenchen

e-mail:  h...@ebusiness-unibw.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
 http://www.heppnetz.de/ (personal)
skype:   mfhepp
twitter: mfhepp

Check out GoodRelations for E-Commerce on the Web of Linked Data!
=

Project page:
http://purl.org/goodrelations/

Resources for developers:
http://www.ebusiness-unibw.org/wiki/GoodRelations

Webcasts:
Overview - http://www.heppnetz.de/projects/goodrelations/webcast/
How-to   - http://vimeo.com/7583816

Recipe for Yahoo SearchMonkey:
http://www.ebusiness-unibw.org/wiki/GoodRelations_and_Yahoo_SearchMonkey

Talk at the Semantic Technology Conference 2009:
"Semantic Web-based E-Commerce: The GoodRelations Ontology"
http://www.slideshare.net/mhepp/semantic-webbased-ecommerce-the-

LOD Applications / Redland binaries for Mac OS

2008-09-23 Thread Martin Hepp (UniBW) 

Dear all:

Hopefully not too much off-topic (but I assume there are many Pythonists 
and Pythonians listening):


Does anybody of you have hints on how to install Redland and Python 
bindings [1]
*easily* on Mac OS X? Ideal would be a binary, as available for - I just 
don't want to dig to deeply

into porting and compiling Redland - but it seems there are no binaries
for Leopard on the Web, or am I wrong?

Any help would be very much appreciated :-)


PS: I am posting this here because Redland seems to be the most powerful 
RDF API for Python, but all the simplicity of Python for developing LOD 
applications by a broad audience is gone if installing the lib requires 
a day or so...



Best

Martin


[1] http://sourceforge.net/projects/librdf/
begin:vcard
fn:Martin Hepp
n:Hepp;Martin
org:Bundeswehr University Munich;E-Business and Web Science Research Group
adr:;;Werner-Heisenberg-Web 39;Neubiberg;;D-85577;Germany
email;internet:[EMAIL PROTECTED]
tel;work:+49 89 6004 4217
tel;pager:skype: mfhepp
url:http://www.heppnetz.de
version:2.1
end:vcard

Re: Commonly supported properties

2009-02-15 Thread Martin Hepp (UniBW) 

>I need to encode postal addresses and phone numbers for businesses (not
>people) in some RDF I'm working on. Is there any particular existing
>vocabulary that I should prefer over another for this application?

For representing a business, I would also recommend importing the 
GoodRelations ontology from


http://purl.org/goodrelations/v1

and represent the legal entity as an instance of

http://purl.org/goodrelations/v1#BusinessEntity

You can then attach the address and phone number etc. to that instance.

If you have branches or shop locations of the same legal entity, those 
should be instances of


http://purl.org/goodrelations/v1#LocationOfSalesOrServiceProvisioning

Also here, you can attach vCard attributes easily.

If you need an example, just drop a note. For more info, see 
http://purl.org/goodrelations/


Best
Martin
---
martin hepp
Richard Cyganiak wrote:

On 14 Feb 2009, at 20:01, Bob Wyman wrote:

I need to encode postal addresses and phone numbers for businesses (not
people) in some RDF I'm working on. Is there any particular existing
vocabulary that I should prefer over another for this application?


vCard in RDF is the canonical one:
http://www.w3.org/2006/vcard/ns#

Best,
Richard





bob wyman

On Sat, Feb 14, 2009 at 11:20 AM, Jay Luker  wrote:


Hi all,

I'm interested in getting people's thoughts on a particular line 
from the

"How to publish Linked Data on the Web" tutorial. Specifically the
following...

"It is common practice to mix terms from different vocabularies. We
especially recommend the use of 
rdfs:labeland

foaf:depiction  properties
whenever possible as these terms are well-supported by client 
applications."


I'm curious about a couple of things in regards to this: a) does anyone
know what "client applications" the authors might be referring to, 
and b)

are there examples of other properties that enjoy similar support?

Thanks,
--jay





begin:vcard
fn:Martin Hepp
n:Hepp;Martin
org:Bundeswehr University Munich;E-Business and Web Science Research Group
adr:;;Werner-Heisenberg-Web 39;Neubiberg;;D-85577;Germany
email;internet:mh...@computer.org
tel;work:+49 89 6004 4217
tel;pager:skype: mfhepp
url:http://www.heppnetz.de
version:2.1
end:vcard

ANN: The GoodRelations Annotator: How any business can get onto the Web of Data - today!

2009-04-09 Thread Martin Hepp (UniBW) 

Dear all:

We are proud to announce the release of the GoodRelations Annotator, a
form-based tool that will help any business in the world to create a
description of its offerings suitable for the Web of Data,
and that in less than 5 minutes.

The tool is available at

http://www.ebusiness-unibw.org/tools/goodrelations-annotator/

It creates a straightforward yet complete description of the key aspects
of a typical business using the GoodRelations vocabulary and current
Semantic Web standards.

The resulting RDF/XML file can be either directly published on the
company's Web site or used as a skeleton for developing a more
fine-grained description with price information etc.

The work on the tool has been funded by the Oesterreichische
Forschungsfoerderungsgesellschaft GmbH (FFG) and the Austrian
Bundesministerium fuer Verkehr, Innovation und Technologie (BMVIT) under
the myOntology project in the FIT-IT "Semantic Systems" program
(contract number 812515).

Please help spread the word.

Best wishes
Martin Hepp
http://www.heppnetz.de
http://www.unibw.de/ebusiness/

Tool:
http://www.ebusiness-unibw.org/tools/goodrelations-annotator/

GoodRelations Project:
http://www.heppnetz.de/projects/goodrelations/

Webcast (15 Minutes)
http://www.heppnetz.de/projects/goodrelations/webcast/









begin:vcard
fn:Martin Hepp
n:Hepp;Martin
org:Bundeswehr University Munich;E-Business and Web Science Research Group
adr:;;Werner-Heisenberg-Web 39;Neubiberg;;D-85577;Germany
email;internet:mh...@computer.org
tel;work:+49 89 6004 4217
tel;pager:skype: mfhepp
url:http://www.heppnetz.de
version:2.1
end:vcard

Hosting Semantic Web data on MS IIS?

2009-04-17 Thread Martin Hepp (UniBW) 

Dear all:

Are there any recommended Web resources for configuring Microsoft IIS to 
support redirects and content negotiation? What is easily done via 
.htaccess on Apache servers seems to be difficult or require commercial 
add-ons on MS IIS, as far as my quick Google search indicates.


Is anybody of you serving RDF/XML data or vocabularies from MS IIS 
platforms?


Thanks for any hints.

Best
Martin




begin:vcard
fn:Martin Hepp
n:Hepp;Martin
org:Bundeswehr University Munich;E-Business and Web Science Research Group
adr:;;Werner-Heisenberg-Web 39;Neubiberg;;D-85577;Germany
email;internet:mh...@computer.org
tel;work:+49 89 6004 4217
tel;pager:skype: mfhepp
url:http://www.heppnetz.de
version:2.1
end:vcard

Re: ANN: The GoodRelations Annotator: How any business can get onto the Web of Data - today!

2009-05-04 Thread Martin Hepp (UniBW) 

Dear all:
Apologies for the late reply..

To my knowledge, there is a pretty mature osCommerce output available at

http://code.google.com/p/goodrelations-for-oscommerce/

It was developed by a student of mine.

A similar approach for the Joomla/Virtuemart combo by the same student 
is available at


http://code.google.com/p/goodrelations-for-joomla/

Best
Martin


Daniel O'Connor wrote:



On Fri, Apr 10, 2009 at 1:12 PM, Daniel O'Connor 
mailto:daniel.ocon...@gmail.com>> wrote:


Got any plans around baking this into e-commerce software?
 
I'm about 3 hours away from adding rdf/xml output into oscommerce;

and i'm sure there are lots of other platforms out there.


Oh neat, already done with triplify! 
begin:vcard
fn:Martin Hepp
n:Hepp;Martin
org:Bundeswehr University Munich;E-Business and Web Science Research Group
adr:;;Werner-Heisenberg-Web 39;Neubiberg;;D-85577;Germany
email;internet:mh...@computer.org
tel;work:+49 89 6004 4217
tel;pager:skype: mfhepp
url:http://www.heppnetz.de
version:2.1
end:vcard

Re: ANN: The GoodRelations Annotator: How any business can get onto the Web of Data - today!

2009-05-04 Thread Martin Hepp (UniBW) 

Hi all:

>By the way, any chance of asserting that a gr:BusinessEntity is 
equivalent to a foaf:Organisation or foaf:Agent?
As a statement in a particular data space, I think such a link is pretty 
accurate and useful. However, we currently prefer to collate such 
"heuristics"-based mapping axioms in separate files instead of including 
them in the vocabulary specification. The reason is that some users of 
GoodRelations manage clean OWL DL models inside corporate applications; 
there, importing, or linking to, RDF schema elements has unwanted 
side-effects.


Don't get me wrong: We are very interested and collecting practically 
useful link statements. But I think they should be managed in a modular 
fashion.


Best
Martin

Daniel O'Connor wrote:




 ...
 http://www.3kbo.com/people/richard.hancock/foaf.rdf#i"/>
 ...


 
By the way, any chance of asserting that a gr:BusinessEntity is 
equivalent to a foaf:Organisation or foaf:Agent?
begin:vcard
fn:Martin Hepp
n:Hepp;Martin
org:Bundeswehr University Munich;E-Business and Web Science Research Group
adr:;;Werner-Heisenberg-Web 39;Neubiberg;;D-85577;Germany
email;internet:mh...@computer.org
tel;work:+49 89 6004 4217
tel;pager:skype: mfhepp
url:http://www.heppnetz.de
version:2.1
end:vcard

vCard - Old vs. New?

2009-05-06 Thread Martin Hepp (UniBW) 

Dear all:

As far as I can see, there are now two vCard variants in use - the original

http://www.w3.org/2001/vcard-rdf/3.0#

and the new one

http://www.w3.org/2006/vcard/ns#

Now - which one should data providers and application developers use? I 
see the technical advantages of the new variant and the deficiencies of 
the old approach. However, a quick SWOOGLE statistics shows that there 
are only 470 RDF documents using the new version vs. 233,595 documents 
using the old version.


How do current Semantic Web applications handle this issue? Do they 
honor data expressed in either variant?
I see that Yahoo Searchmonkey, for instance, endorses the new namespace 
- what's with others?


We should not irritate potential users of Semantic technology by already 
confusing them by two vocabularies for such basic data as contact 
details


Best
Martin

old: 
http://swoogle.umbc.edu/index.php?option=com_frontpage&service=digest&queryType=digest_ns&searchString=http://www.w3.org/2001/vcard-rdf/3.0%23


new:
http://swoogle.umbc.edu/index.php?option=com_frontpage&service=digest&queryType=digest_ns&searchString=http://www.w3.org/2006/vcard/ns%23

--
--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail: mh...@computer.org
phone:  +49-(0)89-6004-4217
fax:+49-(0)89-6004-4620
www:http://www.unibw.de/ebusiness/ (group)
http://www.heppnetz.de/ (personal)
skype:  mfhepp 



Check out the GoodRelations vocabulary for E-Commerce on the Web of Data!


Webcast explaining the Web of Data for E-Commerce:
-
http://www.heppnetz.de/projects/goodrelations/webcast/

Tool for registering your business:
--
http://www.ebusiness-unibw.org/tools/goodrelations-annotator/

Overview article on Semantic Universe:
-
http://www.semanticuniverse.com/articles-semantic-web-based-e-commerce-webmasters-get-ready.html

Project page and resources for developers:
-
http://purl.org/goodrelations/

Upcoming events:
---
Full-day tutorial at ESWC 2009: The Web of Data for E-Commerce in One Day: A 
Hands-on Introduction to the GoodRelations Ontology, RDFa, and Yahoo! 
SearchMonkey

http://www.eswc2009.org/program-menu/tutorials/70

Talk at the Semantic Technology Conference 2009: Semantic Web-based E-Commerce: 
The GoodRelations Ontology

http://www.semantic-conference.com/session/1881/

begin:vcard
fn:Martin Hepp
n:Hepp;Martin
org:Bundeswehr University Munich;E-Business and Web Science Research Group
adr:;;Werner-Heisenberg-Web 39;Neubiberg;;D-85577;Germany
email;internet:mh...@computer.org
tel;work:+49 89 6004 4217
tel;pager:skype: mfhepp
url:http://www.heppnetz.de
version:2.1
end:vcard

Re: vCard - Old vs. New?

2009-05-07 Thread Martin Hepp (UniBW) 

Dear all:

From the messages in the thread, I conclude that:

1. There is an actual problem.
2. There are good reasons to converge the two vCard variants for the 
Semantic Web.
3. This will require additional discussion and work, both on the 
technical and organizational side.
4. Until this will have happened, there is no rush to update existing 
applications that create output using the old vCard specification. (Due 
to the masses of "old" vCard data, it would not be prudent for any 
data-consuming application to accept only "new" vCard data anyway - see 
my SWOOGLE figures from the initial mail - 230,000 vs. 470 datasets - 
which implies that continuing to create "old"-style vCard should be 
tolerable.)


Or am I wrong in any of those points?

Best
Martin

PS: Research in the economics of standardization shows that the 
migration to a new standard requires technology to reduce the switching 
costs for everybody involved (at least users and application 
developers). Otherwise, positive network externalities for the 
established standard cause inertia that may eventually prevent the broad 
adoption of the new standard. So just publishing a new version may not 
be sufficient given the strong position of the old vCard spec. We need 
conversion tools etc.


Renato Iannella wrote:


On 7 May 2009, at 12:08, Sandro Hawke wrote:


Interestingly, it doesn't seem like this question has ever come up
before. If there were a Working Group with this in scope, it could
(following appropriate process) publish a new version at that same
location, but short of that, there's no handy solution. Harry and I
have talked about it, though, and will try to come up with something.





--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail: mh...@computer.org
phone:  +49-(0)89-6004-4217
fax:+49-(0)89-6004-4620
www:http://www.unibw.de/ebusiness/ (group)
http://www.heppnetz.de/ (personal)
skype:  mfhepp 



Check out the GoodRelations vocabulary for E-Commerce on the Web of Data!


Webcast explaining the Web of Data for E-Commerce:
-
http://www.heppnetz.de/projects/goodrelations/webcast/

Tool for registering your business:
--
http://www.ebusiness-unibw.org/tools/goodrelations-annotator/

Overview article on Semantic Universe:
-
http://www.semanticuniverse.com/articles-semantic-web-based-e-commerce-webmasters-get-ready.html

Project page and resources for developers:
-
http://purl.org/goodrelations/

Upcoming events:
---
Full-day tutorial at ESWC 2009: The Web of Data for E-Commerce in One Day: A 
Hands-on Introduction to the GoodRelations Ontology, RDFa, and Yahoo! 
SearchMonkey

http://www.eswc2009.org/program-menu/tutorials/70

Talk at the Semantic Technology Conference 2009: Semantic Web-based E-Commerce: 
The GoodRelations Ontology

http://www.semantic-conference.com/session/1881/

begin:vcard
fn:Martin Hepp
n:Hepp;Martin
org:Bundeswehr University Munich;E-Business and Web Science Research Group
adr:;;Werner-Heisenberg-Web 39;Neubiberg;;D-85577;Germany
email;internet:mh...@computer.org
tel;work:+49 89 6004 4217
tel;pager:skype: mfhepp
url:http://www.heppnetz.de
version:2.1
end:vcard

Re: vCard - Old vs. New?

2009-05-07 Thread Martin Hepp (UniBW) 

Hi Richard,
Thanks - this is exactly the kind of substantiated counter-argument I 
was hoping for ;-)


But seriously - we must minimize this confusion. A first necessary step 
would be to complete the 2006 document - I just spent two hours 
searching for examples of how the new vCard should exactly be used, and 
I at least knew exactly what I was looking for. How much worse will the 
same task be for someone from outside of the SW/LOD box?


Martin


Richard Cyganiak wrote:

Martin,

On 7 May 2009, at 07:51, Martin Hepp (UniBW) wrote:
(Due to the masses of "old" vCard data, it would not be prudent for 
any data-consuming application to accept only "new" vCard data anyway 
- see my SWOOGLE figures from the initial mail - 230,000 vs. 470 
datasets - which implies that continuing to create "old"-style vCard 
should be tolerable.)


This is a questionable conclusion for several reasons.

1. AFAICT the data from Swoogle is outdated. I haven't heard any news 
from the project since 2007. Given that the new vCard-in-RDF work is 
from November 2006, these stats might be misleading, and the sites 
that Swoogle has indexed might have gone offline or changed to the new 
namespace.


2. FWIW, Sindice reports 12k documents using the old and 254k using 
the new one, but this is not comparable to the Swoogle numbers because 
many of the new hits are from hcard microformats (which Sindice maps 
into the new vCard namespace).


3. Pure document numbers say nothing about how "locked in" a standard 
is. The 230k documents that Swoogle reports might all come from a 
single site, and switching them all to a new namespace might be a 
five-minute thing. (99% of the use that Sindice sees for the old 
namespace is from Josh Tauberer's usgov dataset.)


4. Yahoo reports 1B+ hcard microformats on the Web. All 
microformat-to-RDF converters I'm aware of map them to the new 
namespace (e.g. any23, Swignition, SearchMonkey).


I conclude that the old namespace is obsolete and should be ignored 
and avoided, in the interest of converging on a single namespace.


Best,
Richard






Or am I wrong in any of those points?

Best
Martin

PS: Research in the economics of standardization shows that the 
migration to a new standard requires technology to reduce the 
switching costs for everybody involved (at least users and 
application developers). Otherwise, positive network externalities 
for the established standard cause inertia that may eventually 
prevent the broad adoption of the new standard. So just publishing a 
new version may not be sufficient given the strong position of the 
old vCard spec. We need conversion tools etc.


Renato Iannella wrote:


On 7 May 2009, at 12:08, Sandro Hawke wrote:


Interestingly, it doesn't seem like this question has ever come up
before. If there were a Working Group with this in scope, it could
(following appropriate process) publish a new version at that same
location, but short of that, there's no handy solution. Harry and I
have talked about it, though, and will try to come up with something.





--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail: mh...@computer.org
phone:  +49-(0)89-6004-4217
fax:+49-(0)89-6004-4620
www:http://www.unibw.de/ebusiness/ (group)
http://www.heppnetz.de/ (personal)
skype:  mfhepp 



Check out the GoodRelations vocabulary for E-Commerce on the Web of Data!


Webcast explaining the Web of Data for E-Commerce:
-
http://www.heppnetz.de/projects/goodrelations/webcast/

Tool for registering your business:
--
http://www.ebusiness-unibw.org/tools/goodrelations-annotator/

Overview article on Semantic Universe:
-
http://www.semanticuniverse.com/articles-semantic-web-based-e-commerce-webmasters-get-ready.html

Project page and resources for developers:
-
http://purl.org/goodrelations/

Upcoming events:
---
Full-day tutorial at ESWC 2009: The Web of Data for E-Commerce in One Day: A 
Hands-on Introduction to the GoodRelations Ontology, RDFa, and Yahoo! 
SearchMonkey

http://www.eswc2009.org/program-menu/tutorials/70

Talk at the Semantic Technology Conference 2009: Semantic Web-based E-Commerce: 
The GoodRelations Ontology

http://www.semantic-conference.com/session/1881/

begin:vcard
fn:Martin Hepp
n:Hepp;Martin
org:Bundeswehr University Munich;E-Business and Web Science Research Group
adr:;;Werner-Heisenberg-Web 39;Neubiberg;;D-85577;Germany
email;internet:mh...@computer.org
tel;work:+49 89 6004 4217
tel;pager:skype: mfhepp
url:http://www.heppnetz.de
version:2.1
end:vcard

ANN: GoodRelations Service Update 2009-05-05 - Please refresh your caches!

2009-05-20 Thread Martin Hepp (UniBW) 

Dear all:
We just released a service update of the GoodRelations ontology for
e-commerce.

The ontology is available at

http://purl.org/goodrelations/v1

If you want to explicitly fetch the OWL file or the HTML documentation,
you may also use

http://purl.org/goodrelations/v1.owl

or

http://purl.org/goodrelations/v1.html

Please replace all local copies of GoodRelations by this new file.

The service update is designed to be fully backwards-compatible. Only a
few changes may require small modifications of current applications or
data sets. Those few potentially incompatible changes are as follows:

- gr:description is now deprecated; we suggest using rdfs:comment instead.
- gr:isListPrice is now deprecated and replaced by the more powerful
gr:priceType property.

The remaining changes are vocabulary extensions or improvements that
help increase the compatibility with Semantic Web applications. For
example, we
- changed cardinality recommendations for opening hours and business
functions, which simplifies the usage of GoodRelations in RDFa;
- added PayPal as a payment method, and
- added labels to all elements.

A complete change log is at

http://tinyurl.com/q8yln9

A big thank you for the many valuable suggestions for improvement!

Best

Martin

--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail: mh...@computer.org
phone:  +49-(0)89-6004-4217
fax:+49-(0)89-6004-4620
www:http://www.unibw.de/ebusiness/ (group)
http://www.heppnetz.de/ (personal)
skype:  mfhepp


Check out the GoodRelations vocabulary for E-Commerce on the Web of Data!


Webcast explaining the Web of Data for E-Commerce:
-
http://www.heppnetz.de/projects/goodrelations/webcast/

Tool for registering your business:
--
http://www.ebusiness-unibw.org/tools/goodrelations-annotator/

Overview article on Semantic Universe:
-
http://www.semanticuniverse.com/articles-semantic-web-based-e-commerce-webmasters-get-ready.html

Project page and resources for developers:
-
http://purl.org/goodrelations/

Upcoming events:
---
Full-day tutorial at ESWC 2009: The Web of Data for E-Commerce in One
Day: A Hands-on Introduction to the GoodRelations Ontology, RDFa, and
Yahoo! SearchMonkey

http://www.eswc2009.org/program-menu/tutorials/70

Talk at the Semantic Technology Conference 2009: Semantic Web-based
E-Commerce: The GoodRelations Ontology

http://www.semantic-conference.com/session/1881/




--
--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail: mh...@computer.org
phone:  +49-(0)89-6004-4217
fax:+49-(0)89-6004-4620
www:http://www.unibw.de/ebusiness/ (group)
http://www.heppnetz.de/ (personal)
skype:  mfhepp


Check out the GoodRelations vocabulary for E-Commerce on the Web of Data!


Webcast explaining the Web of Data for E-Commerce:
-
http://www.heppnetz.de/projects/goodrelations/webcast/

Tool for registering your business:
--
http://www.ebusiness-unibw.org/tools/goodrelations-annotator/

Overview article on Semantic Universe:
-
http://www.semanticuniverse.com/articles-semantic-web-based-e-commerce-webmasters-get-ready.html

Project page and resources for developers:
-
http://purl.org/goodrelations/

Upcoming events:
---
Full-day tutorial at ESWC 2009: The Web of Data for E-Commerce in One 
Day: A Hands-on Introduction to the GoodRelations Ontology, RDFa, and 
Yahoo! SearchMonkey


http://www.eswc2009.org/program-menu/tutorials/70

Talk at the Semantic Technology Conference 2009: Semantic Web-based 
E-Commerce: The GoodRelations Ontology


http://www.semantic-conference.com/session/1881/
begin:vcard
fn:Martin Hepp
n:Hepp;Martin
org:Bundeswehr University Munich;E-Business and Web Science Research Group
adr:;;Werner-Heisenberg-Web 39;Neubiberg;;D-85577;Germany
email;internet:mh...@computer.org
tel;work:+49 89 6004 4217
tel;pager:skype: mfhepp
url:http://www.heppnetz.de
version:2.1
end:vcard

ANN: GoodRelations - E-Commerce on the Web of Data - New Datasets and Applications

2009-05-20 Thread Martin Hepp (UniBW) 

Dear all:

Thanks to the help of several partners, there are now new data sets and
tools related to the GoodRelations ontology for e-commerce:

1. OpenEAN data set: 1 million EAN/UPC codes plus respective labels
---
The full data set is at

http://openean.kaufkauf.net/id/

Individual commodity descriptions can be retrieved as follows:

http://openean.kaufkauf.net/id/EanUpc_

Example:

http://openean.kaufkauf.net/id/EanUpc_0001067792600

With this data set, Point-of-Sale applications can simply query the
Semantic Web for the proper labels for a given UPC/EAN code. For
example, the proper label for the UPC/EAN code 0001067792600 can be
retrieved as follows:

SELECT ?uri, ?label WHERE {?uri rdf:type
. ?uri

"0001067792600"^^. ?uri
rdfs:label ?label}

Since the data set is already replicated in the Virtuoso LOD data space
(special thanks to Kingsley Idehen from OpenLink Software!), one can
simply query the respective SPARQL endpoint, e.g.:

http://lod.openlinksw.com/sparql?default-graph-uri=&query=SELECT+%3Furi%2C+%3Flabel+WHERE+{%3Furi+rdf%3Atype+%3Chttp%3A%2F%2Fpurl.org%2Fgoodrelations%2Fv1%23ProductOrServiceModel%3E.+%3Furi+%3Chttp%3A%2F%2Fpurl.org%2Fgoodrelations%2Fv1%23hasEAN_UCC-13%3E+%220001067792600%22^^%3Chttp%3A%2F%2Fwww.w3.org%2F2001%2FXMLSchema%23string%3E.+%3Furi+rdfs%3Alabel+%3Flabel}&format=text%2Fhtml&debug=on&timeout=

(alternatively, use http://tinyurl.com/qxwrt6)

A big thank you goes to Michael Pfeiffer from  Kaufkauf.net
(http://www.kaufkauf.net/index.php?l=en) for providing the data and for
hosting the RDF data set, and to Andreas Radinger and Tobias Ostheim for
the data conversion!

2. FreeclassOWL: Products and services ontology for the construction and
building industry


This ontology defines 4,780 classes, 162 properties, and 1,182
qualitative values for products and services from the construction and
building materials domain. All labels are available in up to EIGHT
languages. FreeclassOWL is compatible with GoodRelations and available
under a Creative Commons 3.0 License.

Base URI:  http://www.freeclass.eu/freeclass_v1
Ontology:  http://www.freeclass.eu/freeclass_v1.owl
Documentation: http://www.freeclass.eu/freeclass_v1.html

A big thank you goes to Otto Handle from http://www.inndata.at/ for
making their Freeclass classification available for the Web of Data, and
to Andreas Radinger and Tobias Ostheim for the data conversion!

3. Extensions / Plug-ins for osCommerce and Joomla/Virtuemart
-
There are now working prototypes of export interfaces that allow
creating GoodRelations data directly from popular Web shop or CMS software.

a) osCommerce Web Shop Software

http://code.google.com/p/goodrelations-for-oscommerce/

(An alternative export project for osCommerce is at
http://triplify.org/Configuration/osCommerce.)

b)  Joomla/Virtuemart CMS/Shop combo

http://code.google.com/p/goodrelations-for-joomla/

A big thank you goes to Alex Stolz for his hard work in developing the
two components!

Also, Intershop recently completed an internal feasibility study and
prototype of RDFa and RDF/XML export for their Enfinity series. The
results are unfortunately not yet available to the general public, but
in case you are an Intershop client with Semantic Web interests, it
would not hurt to ask them...

Best wishes


Martin
--

martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail: mh...@computer.org
phone:  +49-(0)89-6004-4217
fax:+49-(0)89-6004-4620
www:http://www.unibw.de/ebusiness/ (group)
http://www.heppnetz.de/ (personal)
skype:  mfhepp


Check out the GoodRelations vocabulary for E-Commerce on the Web of Data!


Webcast explaining the Web of Data for E-Commerce:
-
http://www.heppnetz.de/projects/goodrelations/webcast/

Tool for registering your business:
--
http://www.ebusiness-unibw.org/tools/goodrelations-annotator/

Overview article on Semantic Universe:
-
http://www.semanticuniverse.com/articles-semantic-web-based-e-commerce-webmasters-get-ready.html

Project page and resources for developers:
-
http://purl.org/goodrelations/

Upcoming events:
---
Full-day tutorial at ESWC 2009: The Web of Data for E-Commerce in One 
Day: A Hands-on Introduction to the GoodRelations Ontology, RDFa, and 
Yahoo! SearchMonkey


http://www.eswc2009.org/program-menu/tutorials/70

Talk at the Semantic Technol

Re: ANN: GoodRelations - E-Commerce on the Web of Data - New Datasets and Applications

2009-05-20 Thread Martin Hepp (UniBW) 

Hi Libby,



That's rather fabulous! Can you give some information about how often 
this dataset is updated, and what's its geographical and product type 
reach?
Thanks! This particular data set is a rather static collection and has a 
bias towards US products. It will soon be complemented by a more dynamic 
and European-centric second data set.


In the long run, we will have to convince professional providers of 
commodity master data (e.g. GS1) to release their data following our 
structure. Currently, this is not possible due to licensing restrictions 
(there are look-up services like GEPIR, but none of them allows 
redistribution of the data).


The upcoming second data set will be based on a community process, i.e., 
shop owners enter labels for EAN/UPCs in a Wiki.


Since EAN/UPCs must (theoretically) not be reused, the current data set 
should be pretty reliable, though not necessarily very complete.


I see the main benefit of the current data set in
- using it as a showcase how small businesses can fetch product master 
data from the Semantic Web and
- showing how data on the same commodity from multiple sources can be 
easily linked on the basis of having the same


http://purl.org/goodrelations/v1.html#hasEAN_UCC-13

property value.



Individual commodity descriptions can be retrieved as follows:

http://openean.kaufkauf.net/id/EanUpc_

Example:

http://openean.kaufkauf.net/id/EanUpc_0001067792600


This seems to give me multiple product descriptions - am I 
misunderstanding?
The whole data set is divided in currently 100 (will be changed to 1000 
soon) RDF files, which are being served via a bit complicated .htaccess 
configuration.


The reason is that the large number of instance data would otherwise 
require 1 million very small files (a few triples each), which may cause 
problems with several file systems. Also, since we want as much of our 
data as possible to stay within OWL DL (I know not everybody in the 
community shares that), this would cause a lot of redundancy due to 
ontology imports / header data in each single file.


But as far as I can see, the current approach should not have major side 
effects - you get back additional triples, but the size of the files 
being served is limited. Currently, we serve 4 MB file chunks. We will 
shortly reduce that to 400 - 800 KB. That seems reasonable to me.


Best
Martin




Libby




begin:vcard
fn:Martin Hepp
n:Hepp;Martin
org:Bundeswehr University Munich;E-Business and Web Science Research Group
adr:;;Werner-Heisenberg-Web 39;Neubiberg;;D-85577;Germany
email;internet:mh...@computer.org
tel;work:+49 89 6004 4217
tel;pager:skype: mfhepp
url:http://www.heppnetz.de
version:2.1
end:vcard

Re: ANN: GoodRelations - E-Commerce on the Web of Data - New Datasets and Applications

2009-05-20 Thread Martin Hepp (UniBW) 

Hi Steve,
as I replied to Libby (but did not include all mailing lists): The whole 
data set is served from currently 100 smaller files, which will be 
broken down to 1000 files shortly. For various reasons however, we don't 
want to serve one file per element, because that will create a huge 
overhead - the individual data sets are rather small (a few triples per 
item). Having one million micro-files is hard to manage. Also, since we 
want to stay within OWL DL, we would have to duplicate proper ontology 
header meta-data a million times.


Thus, we use a (rather large) set of rules in the .htaccess file to 
serve that part of the data set that contains the element you are 
actually looking for. You will receive a few more triples than you need, 
but simply discard those ;-)


Martin

Steve Harris wrote:

Very cool resource.

On 20 May 2009, at 10:18, Libby Miller wrote:

Individual commodity descriptions can be retrieved as follows:

http://openean.kaufkauf.net/id/EanUpc_

Example:

http://openean.kaufkauf.net/id/EanUpc_0001067792600


This seems to give me multiple product descriptions - am I 
misunderstanding?


Yeah, looks like it returns the entire document that the particular 
EAN appears in.


Not very linked data friendly (you'll end up with a large proportion 
of repeated triples in identical graphs, with different graph URIS), 
but certainly better than nothing.


- Steve



--
--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail: mh...@computer.org
phone:  +49-(0)89-6004-4217
fax:+49-(0)89-6004-4620
www:http://www.unibw.de/ebusiness/ (group)
http://www.heppnetz.de/ (personal)
skype:  mfhepp 



Check out the GoodRelations vocabulary for E-Commerce on the Web of Data!


Webcast explaining the Web of Data for E-Commerce:
-
http://www.heppnetz.de/projects/goodrelations/webcast/

Tool for registering your business:
--
http://www.ebusiness-unibw.org/tools/goodrelations-annotator/

Overview article on Semantic Universe:
-
http://www.semanticuniverse.com/articles-semantic-web-based-e-commerce-webmasters-get-ready.html

Project page and resources for developers:
-
http://purl.org/goodrelations/

Upcoming events:
---
Full-day tutorial at ESWC 2009: The Web of Data for E-Commerce in One Day: A 
Hands-on Introduction to the GoodRelations Ontology, RDFa, and Yahoo! 
SearchMonkey

http://www.eswc2009.org/program-menu/tutorials/70

Talk at the Semantic Technology Conference 2009: Semantic Web-based E-Commerce: 
The GoodRelations Ontology

http://www.semantic-conference.com/session/1881/

begin:vcard
fn:Martin Hepp
n:Hepp;Martin
org:Bundeswehr University Munich;E-Business and Web Science Research Group
adr:;;Werner-Heisenberg-Web 39;Neubiberg;;D-85577;Germany
email;internet:mh...@computer.org
tel;work:+49 89 6004 4217
tel;pager:skype: mfhepp
url:http://www.heppnetz.de
version:2.1
end:vcard

ANN: RDF2dataRSS Conversion - Feed RDF/XML into Yahoo SearchMonkey (beta)

2009-06-02 Thread Martin Hepp (UniBW) 

Dear all:

As you may know, Yahoo SearchMonkey accepts Semantic Web data only if
either provided as RDFa or via the Yahoo-specific dataRSS feed format.
This means that RDF/XML and other formats are currently not considered.

Since it is sometimes desirable to publish data in RDF/XML rather than
RDFa, we developed a conversion service "RDF2dataRSS" that turns RDF/XML
into a dataRSS feed, which can then be submitted to Yahoo.

The tool is available at

http://www.ebusiness-unibw.org/tools/rdf2datarss/

It can also be directly accessed from applications in a REST style by
sending an HTTP GET request to the URI

http://www.ebusiness-unibw.org/tools/rdf2datarss/RDF2dataRSSServlet?type=xml&uri=

with  being the URI of an RDF/XML file to be converted, e.g.

http://www.ebusiness-unibw.org/tools/rdf2datarss/RDF2dataRSSServlet?type=xml&uri=http://www.host.com/rdffile.rdf 



This returns an XML file containing the RDF content as dataRSS.

Disclaimer: The tool is in beta only, so there are no explicit or
implicit guarantees given...

A big thanks to Thomas Irmscher and Andreas Radinger for their hard work!

Best
Martin

--
--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail: mh...@computer.org
phone:  +49-(0)89-6004-4217
fax:+49-(0)89-6004-4620
www:http://www.unibw.de/ebusiness/ (group)
http://www.heppnetz.de/ (personal)
skype:  mfhepp


Check out the GoodRelations vocabulary for E-Commerce on the Web of Data!


Webcast explaining the Web of Data for E-Commerce:
-
http://www.heppnetz.de/projects/goodrelations/webcast/

Tool for registering your business:
--
http://www.ebusiness-unibw.org/tools/goodrelations-annotator/

Overview article on Semantic Universe:
-
http://www.semanticuniverse.com/articles-semantic-web-based-e-commerce-webmasters-get-ready.html

Project page and resources for developers:
-
http://purl.org/goodrelations/

Upcoming events:
---
Full-day tutorial at ESWC 2009: The Web of Data for E-Commerce in One 
Day: A Hands-on Introduction to the GoodRelations Ontology, RDFa, and 
Yahoo! SearchMonkey


http://www.eswc2009.org/program-menu/tutorials/70

Talk at the Semantic Technology Conference 2009: Semantic Web-based 
E-Commerce: The GoodRelations Ontology


http://www.semantic-conference.com/session/1881/


begin:vcard
fn:Martin Hepp
n:Hepp;Martin
org:Bundeswehr University Munich;E-Business and Web Science Research Group
adr:;;Werner-Heisenberg-Web 39;Neubiberg;;D-85577;Germany
email;internet:mh...@computer.org
tel;work:+49 89 6004 4217
tel;pager:skype: mfhepp
url:http://www.heppnetz.de
version:2.1
end:vcard

Publishing RDF/XML Data on MS IIS Platforms

2009-06-02 Thread Martin Hepp (UniBW) 

Dear all:

Here is a brief summary of related resources - thanks to everybody who 
replied:


•  Ionics Isapi Rewrite Filter for IIS 5.0 and IIS 6.0
–  http://iirf.codeplex.com/

•  Microsoft URL Rewrite Module for IIS 7.0
–  http://support.microsoft.com/kb/324064
(Thanks to Christophe Debruyne and Robert Meersman for the hint!)

•  ModRewrite
–  http://www.micronovae.com/ModRewrite/ModRewrite.html
(Thanks to Sergio Fernández for the link!)


Best
Martin
Martin Hepp (UniBW) wrote:

Dear all:

Are there any recommended Web resources for configuring Microsoft IIS 
to support redirects and content negotiation? What is easily done via 
.htaccess on Apache servers seems to be difficult or require 
commercial add-ons on MS IIS, as far as my quick Google search indicates.


Is anybody of you serving RDF/XML data or vocabularies from MS IIS 
platforms?


Thanks for any hints.

Best
Martin






begin:vcard
fn:Martin Hepp
n:Hepp;Martin
org:Bundeswehr University Munich;E-Business and Web Science Research Group
adr:;;Werner-Heisenberg-Web 39;Neubiberg;;D-85577;Germany
email;internet:mh...@computer.org
tel;work:+49 89 6004 4217
tel;pager:skype: mfhepp
url:http://www.heppnetz.de
version:2.1
end:vcard

HTTP 200 instead of 303

2009-06-04 Thread Martin Hepp (UniBW) 

Dear all,

is this an acceptable practice from an LOD point of view or are there 
technical concerns?


Martin

Damian Steer wrote:


On 20 May 2009, at 18:54, Martin Hepp (UniBW) wrote:


Hi Damian:
Thanks for your e-mail! I must admit that I don't get what exactly 
you are proposing with



If the location header was set in the response I guess that might help.


Best
Martin


Hi Martin,

Apologies. The perils of hasty emails :-)

I meant setting the 'Content-Location' header, to indicate where the 
data came from. It's lighter than a redirect.


Example:

GET http://logs.jruby.org/jruby/latest
=>
HTTP/1.1 200 OK
...
Content-Location: latest.txt

Similarly you could try:

GET http://openean.kaufkauf.net/id/EanUpc_0001067792600
=>
HTTP/1.1 200 OK
...
Content-Location: EanUpc_range_xx

GET http://openean.kaufkauf.net/id/EanUpc_0008811127923
=>
HTTP/1.1 200 OK
...
Content-Location: EanUpc_range_xx

Which seems like a reasonable way to indicate they have the same content.

Damian



--
--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail: mh...@computer.org
phone:  +49-(0)89-6004-4217
fax:+49-(0)89-6004-4620
www:http://www.unibw.de/ebusiness/ (group)
http://www.heppnetz.de/ (personal)
skype:  mfhepp 



Check out the GoodRelations vocabulary for E-Commerce on the Web of Data!


Webcast explaining the Web of Data for E-Commerce:
-
http://www.heppnetz.de/projects/goodrelations/webcast/

Tool for registering your business:
--
http://www.ebusiness-unibw.org/tools/goodrelations-annotator/

Overview article on Semantic Universe:
-
http://tinyurl.com/goodrelations-universe

Project page and resources for developers:
-
http://purl.org/goodrelations/

Upcoming events:
---
Full-day tutorial at ESWC 2009: The Web of Data for E-Commerce in One Day: A 
Hands-on Introduction to the GoodRelations Ontology, RDFa, and Yahoo! 
SearchMonkey

http://www.eswc2009.org/program-menu/tutorials/70

Talk at the Semantic Technology Conference 2009: Semantic Web-based E-Commerce: 
The GoodRelations Ontology
More information: http://www.semantic-conference.com/session/1881/

Slides: http://tinyurl.com/semtech-hepp


begin:vcard
fn:Martin Hepp
n:Hepp;Martin
org:Bundeswehr University Munich;E-Business and Web Science Research Group
adr:;;Werner-Heisenberg-Web 39;Neubiberg;;D-85577;Germany
email;internet:mh...@computer.org
tel;work:+49 89 6004 4217
tel;pager:skype: mfhepp
url:http://www.heppnetz.de
version:2.1
end:vcard

Bestbuy.com goes Semantic Web the GoodRelations Way

2009-06-08 Thread Martin Hepp (UniBW) 

Hi all:

Good news:

Bestbuy.com goes Semantic Web the GoodRelations Way

http://tinyurl.com/bestbuy-goodrelations

Best
Martin

--
--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail: mh...@computer.org
phone:  +49-(0)89-6004-4217
fax:+49-(0)89-6004-4620
www:http://www.unibw.de/ebusiness/ (group)
http://www.heppnetz.de/ (personal)
skype:  mfhepp


Check out the GoodRelations vocabulary for E-Commerce on the Web of Data!


Webcast explaining the Web of Data for E-Commerce:
-
http://www.heppnetz.de/projects/goodrelations/webcast/

Tool for registering your business:
--
http://www.ebusiness-unibw.org/tools/goodrelations-annotator/

Overview article on Semantic Universe:
-
http://tinyurl.com/goodrelations-universe

Project page and resources for developers:
-
http://purl.org/goodrelations/

Upcoming events:
---
Full-day tutorial at ESWC 2009: The Web of Data for E-Commerce in One 
Day: A Hands-on Introduction to the GoodRelations Ontology, RDFa, and 
Yahoo! SearchMonkey


http://www.eswc2009.org/program-menu/tutorials/70

Talk at the Semantic Technology Conference 2009: Semantic Web-based 
E-Commerce: The GoodRelations Ontology

More information: http://www.semantic-conference.com/session/1881/

Slides: http://tinyurl.com/semtech-hepp



begin:vcard
fn:Martin Hepp
n:Hepp;Martin
org:Bundeswehr University Munich;E-Business and Web Science Research Group
adr:;;Werner-Heisenberg-Weg 39;Neubiberg;;D-85577;Germany
email;internet:mh...@computer.org
tel;work:+49 89 6004 4217
tel;pager:skype: mfhepp
url:http://www.heppnetz.de
version:2.1
end:vcard

Re: Bestbuy.com goes Semantic Web the GoodRelations Way

2009-06-09 Thread Martin Hepp (UniBW) 

PS. In some cases, its a good idea to stop at the first kiss... but I
think that the prospect of permeating the e-commerce dinosaur is sexy
as hell ;)


Yes, that is what drives me ;-)
Martin

PS: Think of the many novel e-business scenarios in affiliate marketing 
etc. when you can have web-wide search on the product data space.

More here:

http://tinyurl.com/semtech-hepp



Aldo Bucchi wrote:

Guys,

Let me add: Having real world use cases validate the cause in many
levels. In practice, this will generate a second sell, and a third,
etc. Domino effect.

Or rather, the CYA effect: Until someone else has taken the risk, why
put your A on the line?

So, I would call this a nice escape goat as well. And that's a LOT.
First kiss is most elusive. From then on it's downhill ;)

Congratulations to whoever made it happen!

Regards
A

PS. In some cases, its a good idea to stop at the first kiss... but I
think that the prospect of permeating the e-commerce dinosaur is sexy
as hell ;)

On Tue, Jun 9, 2009 at 7:41 AM, Kingsley Idehen wrote:
  

Bill Roberts wrote:


Yeah, I too think this is a big deal.  Semantic web in the commercial
world obviously suffers the same chicken and egg problem as elsewhere, but
if a big company like BestBuy just does it anyway, then services that
consume and aggregate this kind of data are likely to spring up.   Semantic
SEO industry starts here?



  

Yes, but I would say SDQ in addition to SEO :-)




Links:
1. http://tr.im/iv9e -- post about Serendipitous Discovery Quotient (SDQ)

--


Regards,

Kingsley Idehen   Weblog: http://www.openlinksw.com/blog/~kidehen
President & CEO OpenLink Software Web: http://www.openlinksw.com











  


--
--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail: mh...@computer.org
phone:  +49-(0)89-6004-4217
fax:+49-(0)89-6004-4620
www:http://www.unibw.de/ebusiness/ (group)
http://www.heppnetz.de/ (personal)
skype:  mfhepp 



Check out the GoodRelations vocabulary for E-Commerce on the Web of Data!


Webcast explaining the Web of Data for E-Commerce:
-
http://www.heppnetz.de/projects/goodrelations/webcast/

Tool for registering your business:
--
http://www.ebusiness-unibw.org/tools/goodrelations-annotator/

Overview article on Semantic Universe:
-
http://tinyurl.com/goodrelations-universe

Project page and resources for developers:
-
http://purl.org/goodrelations/

Upcoming events:
---
Full-day tutorial at ESWC 2009: The Web of Data for E-Commerce in One Day: A 
Hands-on Introduction to the GoodRelations Ontology, RDFa, and Yahoo! 
SearchMonkey

http://www.eswc2009.org/program-menu/tutorials/70

Talk at the Semantic Technology Conference 2009: Semantic Web-based E-Commerce: 
The GoodRelations Ontology
More information: http://www.semantic-conference.com/session/1881/

Slides: http://tinyurl.com/semtech-hepp


begin:vcard
fn:Martin Hepp
n:Hepp;Martin
org:Bundeswehr University Munich;E-Business and Web Science Research Group
adr:;;Werner-Heisenberg-Web 39;Neubiberg;;D-85577;Germany
email;internet:mh...@computer.org
tel;work:+49 89 6004 4217
tel;pager:skype: mfhepp
url:http://www.heppnetz.de
version:2.1
end:vcard

Re: Bestbuy.com goes Semantic Web the GoodRelations Way

2009-06-09 Thread Martin Hepp (UniBW) 

Hi Aldo:

Kingsley: Does any of the upper level ontologies or LOD datasets
provide industry sectors with a useful level of granularity?

  

Note that GoodRelations provides the gr:hasISICv4 and the gr:hasNAICS

properties for linking a gr:BusinessEntity to the proper ISIC/NAICS 
category code for that company.


For a more precise description of the range of skills or products 
offered, one should use the regular gr:Offering pattern, though, because 
a one-dimensional industry classification is pretty much limited.


http://purl.org/goodrelations/v1#hasISICv4

Definition: The International Standard of Industrial Classification of 
All Economic Activities (ISIC), Revision 4 code for a particular 
Business Entity. See http://unstats.un.org/unsd/cr/registry/isic-4.asp 
for more information. Note: While ISIC codes are sometimes misused for 
classifying products or services, they are designed and suited only for 
classifying business establishments.


http://purl.org/goodrelations/v1#hasNAICS

Definition: The North American Industry Classification System (NAICS) 
code for a particular Business Entity. See 
http://www.census.gov/eos/www/naics/ for more details. Note: While NAICS 
codes are sometimes misused for classifying products or services, they 
are designed and suited only for classifying business establishments.


Best
Martin
  

Congratulations to whoever made it happen!

Regards
A

PS. In some cases, its a good idea to stop at the first kiss... but I
think that the prospect of permeating the e-commerce dinosaur is sexy
as hell ;)

On Tue, Jun 9, 2009 at 7:41 AM, Kingsley Idehen wrote:


Bill Roberts wrote:
  

Yeah, I too think this is a big deal.  Semantic web in the commercial
world obviously suffers the same chicken and egg problem as elsewhere, but
if a big company like BestBuy just does it anyway, then services that
consume and aggregate this kind of data are likely to spring up.   Semantic
SEO industry starts here?





Yes, but I would say SDQ in addition to SEO :-)




Links:
1. http://tr.im/iv9e -- post about Serendipitous Discovery Quotient (SDQ)

--


Regards,

Kingsley Idehen   Weblog: http://www.openlinksw.com/blog/~kidehen
President & CEO OpenLink Software Web: http://www.openlinksw.com






  


--
Aldo Bucchi
U N I V R Z
Office: +56 2 795 4532
Mobile:+56 9 7623 8653
skype:aldo.bucchi
http://www.univrz.com/
http://aldobucchi.com/

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--
--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail: mh...@computer.org
phone:  +49-(0)89-6004-4217
fax:+49-(0)89-6004-4620
www:http://www.unibw.de/ebusiness/ (group)
http://www.heppnetz.de/ (personal)
skype:  mfhepp 



Check out the GoodRelations vocabulary for E-Commerce on the Web of Data!


Webcast explaining the Web of Data for E-Commerce:
-
http://www.heppnetz.de/projects/goodrelations/webcast/

Tool for registering your business:
--
http://www.ebusiness-unibw.org/tools/goodrelations-annotator/

Overview article on Semantic Universe:
-
http://tinyurl.com/goodrelations-universe

Project page and resources for developers:
-
http://purl.org/goodrelations/

Upcoming events:
---
Full-day tutorial at ESWC 2009: The Web of Data for E-Commerce in One Day: A 
Hands-on Introduction to the GoodRelations Ontology, RDFa, and Yahoo! 
SearchMonkey

http://www.eswc2009.org/program-menu/tutorials/70

Talk at the Semantic Technology Conference 2009: Semantic Web-based E-Commerce: 
The GoodRelations Ontology
More information: http://www.semantic-conference.com/session/1881/

Slides: http://tinyurl.com/semtech-hepp


begin:vcard
fn:Martin Hepp
n:Hepp;Martin
org:Bundeswehr University Munich;E-Business and Web Science Research Group
adr:;;Werner-Heisenberg-Web 39;Neubiberg;;D-85577;Germany
email;internet:mh...@computer.org
tel;work:+49 89 6004 4217
tel;pager:skype: mfhepp
url:http://www.heppnetz.de
version:2.1
end:vcard

PingTheSemanticWeb and Sitemaps

2009-06-14 Thread Martin Hepp (UniBW) 

Dear all:

I am sure you all agree that PingTheSemanticWeb is a key service for 
many of our applications. Unfortunately, it does currently not support 
the bulk notification for datasets for which a semantic sitemap is 
available.


Since some of you maybe facing the same problem, I just put a short 
Python script on-line at


http://www.ebusiness-unibw.org/wiki/PTSW4Sitemaps

which you can use to notify PingTheSemanticWeb of multiple files using a 
given semantic sitemap.


Best
Martin
--

martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail: mh...@computer.org
phone:  +49-(0)89-6004-4217
fax:+49-(0)89-6004-4620
www:http://www.unibw.de/ebusiness/ (group)
http://www.heppnetz.de/ (personal)
skype:  mfhepp 



Check out the GoodRelations vocabulary for E-Commerce on the Web of Data!


Webcast explaining the Web of Data for E-Commerce:
-
http://www.heppnetz.de/projects/goodrelations/webcast/

Tool for registering your business:
--
http://www.ebusiness-unibw.org/tools/goodrelations-annotator/

Overview article on Semantic Universe:
-
http://tinyurl.com/goodrelations-universe

Project page and resources for developers:
-
http://purl.org/goodrelations/

Upcoming events:
---
Full-day tutorial at ESWC 2009: The Web of Data for E-Commerce in One Day: A 
Hands-on Introduction to the GoodRelations Ontology, RDFa, and Yahoo! 
SearchMonkey

http://www.eswc2009.org/program-menu/tutorials/70

Talk at the Semantic Technology Conference 2009: Semantic Web-based E-Commerce: 
The GoodRelations Ontology
More information: http://www.semantic-conference.com/session/1881/

Slides: http://tinyurl.com/semtech-hepp


begin:vcard
fn:Martin Hepp
n:Hepp;Martin
org:Bundeswehr University Munich;E-Business and Web Science Research Group
adr:;;Werner-Heisenberg-Web 39;Neubiberg;;D-85577;Germany
email;internet:mh...@computer.org
tel;work:+49 89 6004 4217
tel;pager:skype: mfhepp
url:http://www.heppnetz.de
version:2.1
end:vcard

Re: http://ld2sd.deri.org/lod-ng-tutorial/

2009-06-22 Thread Martin Hepp (UniBW) 

Hi Michael:

(moving this to LOD public as suggested)

General note: I am quite unhappy with a general movement in parts of the 
LOD community to clash with the OWL world even when that is absolutely 
unnecessary. It is just a bad engineering practice to break with 
existing standards unless you can justify the side-effects. And this 
stubborn "i don't care what the OWL specs says" pattern is silly, in 
particular if the real motivation of many proponents of this approach is 
that they don't want or cannot read the OWL specs.


As for owl:imports:

When importing an ontology by owl:imports, you commit to the whole 
formal account of that ontology. If you just include an element from 
that ontology by using it and hope that dereferencing will get the 
relevant formal account in your model, you expose your model to 
randomness - you don't know what subset of the formal account you will 
get served. Ontology modularization is a pretty difficult task, and 
people use various heuristics for deciding what to put in the subset 
being served for an element. There is no guarantee that the fragment you 
get contains everything that you need.


On the other hand - what is your pain with  using RDFa in a way so that 
the extracted RDF model is equivalent to the model from an RDF/XML or N3 
serialization? Why this absolutely arbitrary "we LOD guys don't like 
owl:import ( we don't like OWL anyway, you know?), so we simply omit it" 
behavior?


It is just silly to break with established standards just for saving 1 - 
2 triples.


Best
Martin

Michael Hausenblas wrote:
Martin, 


As an aside: I think I proposed already once to not have this discussion in
a private circle of 'randomly' selected people but rather in the appropriate
lists (rdfa public or public-lod). However, if you prefer to continue here,
we continue here, FWIW.

  

In my opinion the owl:imports
stems from a time where people confused publishing on the Semantic Web with
firing up Protege and clicking around like wild. So, concluding, for me it
is not obvious to use owl:imports and I don't see *any* benefit from using
it. Not in RDF/XML and also not in RDFa ;)
  

you know that i sometimes appreciate your opinion ;-),



Yeah, same here :D

  

... but i think it is
pretty questionable to break with well-defined standards specifications
for just a matter of gut feeling and personal preference.



Ok, let me rephrase this. You, or whoever publishes RDFa can of course do
whatever she likes. Wanna use owl:imports? Fine. Don't wanna use it. Ok!

The point I was trying to make (not very successfully, though): from a
linked data perspective (and basically this is what Richard and I try to
achieve here; offering good practices for linked data *in* RDFa) the usage
of owl:imports is, how to put it, not encouraged.

So far I have not heard any convincing argument from you why one should use
it, but I'm happy and open to learn.

Cheers,
  Michael

  


--
--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  mh...@computer.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
http://www.heppnetz.de/ (personal)
skype:   mfhepp 
twitter: mfhepp


Check out the GoodRelations vocabulary for E-Commerce on the Web of Data!


Webcast:
http://www.heppnetz.de/projects/goodrelations/webcast/

Talk at the Semantic Technology Conference 2009: 
"Semantic Web-based E-Commerce: The GoodRelations Ontology"

http://tinyurl.com/semtech-hepp

Tool for registering your business:
http://www.ebusiness-unibw.org/tools/goodrelations-annotator/

Overview article on Semantic Universe:
http://tinyurl.com/goodrelations-universe

Project page and resources for developers:
http://purl.org/goodrelations/

Tutorial materials:
Tutorial at ESWC 2009: The Web of Data for E-Commerce in One Day: A Hands-on 
Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey

http://www.ebusiness-unibw.org/wiki/GoodRelations_Tutorial_ESWC2009




begin:vcard
fn:Martin Hepp
n:Hepp;Martin
org:Bundeswehr University Munich;E-Business and Web Science Research Group
adr:;;Werner-Heisenberg-Web 39;Neubiberg;;D-85577;Germany
email;internet:mh...@computer.org
tel;work:+49 89 6004 4217
tel;pager:skype: mfhepp
url:http://www.heppnetz.de
version:2.1
end:vcard

Re: http://ld2sd.deri.org/lod-ng-tutorial/

2009-06-22 Thread Martin Hepp (UniBW) 



Yves Raimond wrote:

Ontology modularization is
a pretty difficult task, and people use various heuristics for deciding what
to put in the subset being served for an element. There is no guarantee that
the fragment you get contains everything that you need.




Sorry, just jumping on that, as this is something I am having quite a
lot of troubles to understand (and since quite a long time). Maybe I
am missing something obvious, but how does using owl:imports avoid
this randomness? When using it, you're still hoping that dereferencing
the object of owl:imports will get you the relevant information? I
agree that owl:imports allows you to commit to a whole ontology
instead of committing to single terms within an ontology, but I would
argue that in most cases, you just want to pick a few terms in an
ontology.
There is no safe way of importing only parts of an ontology, unless you 
know that its modularization is 100% reliable.
Serving fragments of likely relevant parts of an ontology for reducing 
the network overhead is not the same as proper modularization of the 
ontology.


Thus, you should import the ontology only, and not the fragments served 
via the dereferencable IDs of selected ontology elements. Partial 
commitment would require that there is a proper definition of the part.

For example, I may agree with the way OWL-Time models
time-zones etc., but I don't agree with the way it models time
intervals vs. events.

  
If that ontology has two explicit parts, e.g. time-core and time-full, 
then you can commit to each one individually. If not, I would strongly 
discourage committing to a random fragment only.


Cheers
Martin


--
--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  mh...@computer.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
http://www.heppnetz.de/ (personal)
skype:   mfhepp 
twitter: mfhepp


Check out the GoodRelations vocabulary for E-Commerce on the Web of Data!


Webcast:
http://www.heppnetz.de/projects/goodrelations/webcast/

Talk at the Semantic Technology Conference 2009: 
"Semantic Web-based E-Commerce: The GoodRelations Ontology"

http://tinyurl.com/semtech-hepp

Tool for registering your business:
http://www.ebusiness-unibw.org/tools/goodrelations-annotator/

Overview article on Semantic Universe:
http://tinyurl.com/goodrelations-universe

Project page and resources for developers:
http://purl.org/goodrelations/

Tutorial materials:
Tutorial at ESWC 2009: The Web of Data for E-Commerce in One Day: A Hands-on 
Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey

http://www.ebusiness-unibw.org/wiki/GoodRelations_Tutorial_ESWC2009




begin:vcard
fn:Martin Hepp
n:Hepp;Martin
org:Bundeswehr University Munich;E-Business and Web Science Research Group
adr:;;Werner-Heisenberg-Weg 39;Neubiberg;;D-85577;Germany
email;internet:mh...@computer.org
tel;work:+49 89 6004 4217
tel;pager:skype: mfhepp
url:http://www.heppnetz.de
version:2.1
end:vcard

Re: http://ld2sd.deri.org/lod-ng-tutorial/

2009-06-23 Thread Martin Hepp (UniBW) 

Hi Dan:
I think Alan already gave examples this morning. An ontology can contain 
statements about the relationship between conceptual elements - classes, 
properties, individuals - that (1) influence the result to queries but 
(2) are not likely retrieved when you just dereference an element from 
that ontology. The more complex an ontology is, the more difficult is it 
to properly modularize it.


But basically my main point is that the use of owl:imports is defined 
pretty well in


http://www.w3.org/TR/owl-ref/#imports-def

and there is no need to deviate from the spec just for the matter of gut 
feeling and annoyance about the past dominance of DL research in the 
field. And as the spec says - with a proper owl:imports statement, any 
application can decide if and what part of the imported ontologies are 
being included to the local model for the task at hand.


Martin


Dan Brickley wrote:

On 22/6/09 23:16, Martin Hepp (UniBW) wrote:



Yves Raimond wrote:

Ontology modularization is
a pretty difficult task, and people use various heuristics for 
deciding what
to put in the subset being served for an element. There is no 
guarantee that

the fragment you get contains everything that you need.



There is no safe way of importing only parts of an ontology, unless you
know that its modularization is 100% reliable.
Serving fragments of likely relevant parts of an ontology for reducing
the network overhead is not the same as proper modularization of the
ontology.


Can you give a concrete example of the danger described here? ie. the 
pair of a complete ("safe") ontology file and a non-safe subset, and 
an explanation of the problems caused.


I can understand "there is no guarantee that the fragment you get 
contains everything you need", and I also remind everyone that 
dereferencing is a privilege not a right: sometimes the network won't 
give you what you want, when you want it. But I've yet to hear of 
anyone who has suffered due to term-oriented ontology fragment 
downloads. I guess medical ontologies would be the natural place for 
horror stories?


cheers,

Dan




--
--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  mh...@computer.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
http://www.heppnetz.de/ (personal)
skype:   mfhepp 
twitter: mfhepp


Check out the GoodRelations vocabulary for E-Commerce on the Web of Data!


Webcast:
http://www.heppnetz.de/projects/goodrelations/webcast/

Talk at the Semantic Technology Conference 2009: 
"Semantic Web-based E-Commerce: The GoodRelations Ontology"

http://tinyurl.com/semtech-hepp

Tool for registering your business:
http://www.ebusiness-unibw.org/tools/goodrelations-annotator/

Overview article on Semantic Universe:
http://tinyurl.com/goodrelations-universe

Project page and resources for developers:
http://purl.org/goodrelations/

Tutorial materials:
Tutorial at ESWC 2009: The Web of Data for E-Commerce in One Day: A Hands-on 
Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey

http://www.ebusiness-unibw.org/wiki/GoodRelations_Tutorial_ESWC2009




begin:vcard
fn:Martin Hepp
n:Hepp;Martin
org:Bundeswehr University Munich;E-Business and Web Science Research Group
adr:;;Werner-Heisenberg-Web 39;Neubiberg;;D-85577;Germany
email;internet:mh...@computer.org
tel;work:+49 89 6004 4217
tel;pager:skype: mfhepp
url:http://www.heppnetz.de
version:2.1
end:vcard

Re: http://ld2sd.deri.org/lod-ng-tutorial/

2009-06-23 Thread Martin Hepp (UniBW) 
It was not my intend to insult anybody. But I still don't get why some 
of you want to recommend a pattern that breaks with a current W3C 
recommendation just on the basis that there are many documents out there 
that break with it. The Swoogle post from 2007 simply says that there 
are many documents out there that are not using it properly. But there 
are also many RDF resources out there that break with LOD principles and 
LOD recommendations and nobody would dare to question the principles 
solely on the basis of bad implementations.


And Michael, please be frank - there is a tendency in the LOD community 
which goes along the lines of "OWL and DL-minded SW research has proven 
obsolete anyway, so we LOD guys and girls just pick and use the bits and 
pieces we like and don't care about the rest".


As Kingsley said - deceptively simple solutions are cheap in the 
beginning but can be pretty costly in the long run.


What made the Web so powerful is that its Architecture is extremely 
well-thought underneath the first cover of simplicity. Exactly the 
opposite of "I will use this pragmatic pattern until it breaks" but 
instead "architectural beauty for eternity".


Just look at the http specs. The fact that you can do a nice 303 is 
because someone in the distant past very cleverly designed a protocol 
goes well beyond the pragmatic "I have a URL (sic!) and want to fetch 
the Web page in HTML (sic!)".


So when being proud of being the "pragmatic guys" keep in mind that 
nothing is as powerful in practice as something that is theoretically 
consistent.


Best
Martin


Michael Hausenblas wrote:

Martin,

  

(moving this to LOD public as suggested)



Thanks.

  

General note: I am quite unhappy with a general movement in parts of the
LOD community to clash with the OWL world even when that is absolutely
unnecessary. It is just a bad engineering practice to break with
existing standards unless you can justify the side-effects. And this
stubborn "i don't care what the OWL specs says" pattern is silly, in
particular if the real motivation of many proponents of this approach is
that they don't want or cannot read the OWL specs.



I don't think it is particular helpful to insult people, to utter
imputations and judge a book by its cover. If we can agree to stop using
such terminology I'm more than happy to continue the discussion.

  

On the other hand - what is your pain with  using RDFa in a way so that
the extracted RDF model is equivalent to the model from an RDF/XML or N3
serialization? Why this absolutely arbitrary "we LOD guys don't like
owl:import ( we don't like OWL anyway, you know?), so we simply omit it"
behavior?

It is just silly to break with established standards just for saving 1 -
2 triples.



Ok, so, again, for the chaps who didn't get the entire story. Martin
champions the use of owl:import (and wants to see it written down as a good
practice?) in linked data.

My take on this is as follows: when one takes the linked data principles and
applies them in practice (esp. referring to #2, here) there are naturally a
dozens implementation choices as the principles simply leave room for
interpretation. 


The people here know me from the RDFa TF, from the AWWSW TF and last but not
least from the LOD community as a simple-minded, pragmatic guy, I hope ;)

So, my hunch would be: the market will make the final decision, not a Martin
Hepp and also not a Michael Hausenblas. If people think this is a clever
idea, they will use it when publishing linked data. AFAIK, to date the usage
of owl:import in linked data is close to non-existing (even in pre-LOD times
it seemed to be not very common [1]).

Concluding, I'd propose - respecting the nature of good *practice* - once we
notice a serious usage of owl:import in LOD data, we may want to rehash this
topic.

Cheers,
  Michael

[1] http://ebiquity.umbc.edu/blogger/2007/06/15/how-owlimport-is-used/

  


--
--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  mh...@computer.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
http://www.heppnetz.de/ (personal)
skype:   mfhepp 
twitter: mfhepp


Check out the GoodRelations vocabulary for E-Commerce on the Web of Data!


Webcast:
http://www.heppnetz.de/projects/goodrelations/webcast/

Talk at the Semantic Technology Conference 2009: 
"Semantic Web-based E-Commerce: The GoodRelations Ontology"

http://tinyurl.com/semtech-hepp

Tool for registering your business:
http://www.ebusiness-unibw.org/tools/goodrelations-annotator/

Overview article on Semantic Universe:
http://tinyurl.com/goodrelations-universe

Project page and resources for developers:
http://purl.org/goodrelations/

Tutorial materials:
Tutorial at ESWC 2009: The Web of Data for E-Comme

Re: http://ld2sd.deri.org/lod-ng-tutorial/

2009-06-23 Thread Martin Hepp (UniBW) 

Hi Kingsley,
You are of course right - I assume that, despite the terminological mess 
I introduced, you agree with my line of argument;  I fully acknowledge 
it is heavily inspired by our San Jose sushi talk ;-)

Martin


Kingsley Idehen wrote:

Martin,

[SNIP]



As Kingsley said - deceptively simple solutions are cheap in the 
beginning but can be pretty costly in the long run.
I meant: "Deceptively Simple" is good. While  "Simply Simple" is bad 
due to inherent architectural myopia obscured by initial illusion of 
cheapness etc..


What made the Web so powerful is that its Architecture is extremely 
well-thought underneath the first cover of simplicity.
That's what I meant by: "Deceptively Simple", architectural apex is 
narrow (simple) while the base is broad (a pyramid) :-)
Exactly the opposite of "I will use this pragmatic pattern until it 
breaks" but instead 
That's what I meant by: "Simple Simple", architectural apex is broad 
while the base is narrow (think inverted pyramid).

"architectural beauty for eternity".

Yes! That what you get with: "Deceptively Simple" :-)


Kingsley


Just look at the http specs. The fact that you can do a nice 303 is 
because someone in the distant past very cleverly designed a protocol 
goes well beyond the pragmatic "I have a URL (sic!) and want to fetch 
the Web page in HTML (sic!)".


So when being proud of being the "pragmatic guys" keep in mind that 
nothing is as powerful in practice as something that is theoretically 
consistent.


Best
Martin


begin:vcard
fn:Martin Hepp
n:Hepp;Martin
org:Bundeswehr University Munich;E-Business and Web Science Research Group
adr:;;Werner-Heisenberg-Web 39;Neubiberg;;D-85577;Germany
email;internet:mh...@computer.org
tel;work:+49 89 6004 4217
tel;pager:skype: mfhepp
url:http://www.heppnetz.de
version:2.1
end:vcard

.htaccess a major bottleneck to Semantic Web adoption / Was: Re: RDFa vs RDF/XML and content negotiation

2009-06-25 Thread Martin Hepp (UniBW) 

Hi all:

After about two months of helping people generate RDF/XML metadata for 
their businesses using the GoodRelations annotator [1],
I have quite some evidence that the current best practices of using 
.htaccess are a MAJOR bottleneck for the adoption of Semantic Web 
technology.


Just some data:
- We have several hundred entries in the annotator log - most people 
spend 10 or more minutes to create a reasonable description of themselves.
- Even though they all operate some sort of Web sites, less than 30 % of 
them manage to upload/publish a single *.rdf file in their root directory.
- Of those 30%, only a fraction manage to set up content negotiation 
properly, even though we provide a step-by-step recipe.


The effects are
- URIs that are not dereferencable,
- incorrect media types and
and other problems.

When investigating the causes and trying to help people, we encountered 
a variety of configurations and causes that we did not expect. It turned 
out that helping people just managing this tiny step of publishing  
Semantic Web data would turn into a full-time job for 1 - 2 administrators.


Typical causes of problems are
- Lack of privileges for .htaccess (many cheap hosting packages give 
limited or no access to .htaccess)
- Users without Unix background had trouble name a file so that it 
begins with a dot

- Microsoft IIS require completely different recipes
- Many users have access just at a CMS level

Bottomline:
- For researchers in the field, it is a doable task to set up an Apache 
server so that it serves RDF content according to current best practices.
- For most people out there in reality, this is regularly a 
prohibitively difficult task, both because of a lack of skills and a 
variety in the technical environments that turns into an engineering 
challenge what is easy on the textbook-level.


As a consequence, we will modify our tool so that it generates "dummy" 
RDFa code with span/div that *just* represents the meta-data without 
interfering with the presentation layer.
That can then be inserted as code snippets via copy-and-paste to any 
XHTML document.


Any opinions?

Best
Martin

[1]  http://www.ebusiness-unibw.org/tools/goodrelations-annotator/

Danny Ayers wrote:

Thank you for the excellent questions, Bill.

Right now IMHO the best bet is probably just to pick whichever format
you are most comfortable with (yup "it depends") and use that as the
single source, transforming perhaps with scripts to generate the
alternate representations for conneg.

As far as I'm aware we don't yet have an easy templating engine for
RDFa, so I suspect having that as the source is probably a good choice
for typical Web applications.

As mentioned already GRDDL is available for transforming on the fly,
though I'm not sure of the level of client engine support at present.
Ditto providing a SPARQL endpoint is another way of maximising the
surface area of the data.

But the key step has clearly been taken, that decision to publish data
directly without needing the human element to interpret it.

I claim *win* for the Semantic Web, even if it'll still be a few years
before we see applications exploiting it in a way that provides real
benefit for the end user.

my 2 cents.

Cheers,
Danny.


  


--
--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  mh...@computer.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
http://www.heppnetz.de/ (personal)
skype:   mfhepp 
twitter: mfhepp


Check out the GoodRelations vocabulary for E-Commerce on the Web of Data!


Webcast:
http://www.heppnetz.de/projects/goodrelations/webcast/

Talk at the Semantic Technology Conference 2009: 
"Semantic Web-based E-Commerce: The GoodRelations Ontology"

http://tinyurl.com/semtech-hepp

Tool for registering your business:
http://www.ebusiness-unibw.org/tools/goodrelations-annotator/

Overview article on Semantic Universe:
http://tinyurl.com/goodrelations-universe

Project page and resources for developers:
http://purl.org/goodrelations/

Tutorial materials:
Tutorial at ESWC 2009: The Web of Data for E-Commerce in One Day: A Hands-on 
Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey

http://www.ebusiness-unibw.org/wiki/GoodRelations_Tutorial_ESWC2009




begin:vcard
fn:Martin Hepp
n:Hepp;Martin
org:Bundeswehr University Munich;E-Business and Web Science Research Group
adr:;;Werner-Heisenberg-Web 39;Neubiberg;;D-85577;Germany
email;internet:mh...@computer.org
tel;work:+49 89 6004 4217
tel;pager:skype: mfhepp
url:http://www.heppnetz.de
version:2.1
end:vcard

Re: .htaccess a major bottleneck to Semantic Web adoption / Was: Re: RDFa vs RDF/XML and content negotiation

2009-06-25 Thread Martin Hepp (UniBW) 

Hi Knut:

Knud Hinnerk Möller wrote:

Hi Martin,

On 25.06.2009, at 17:44, Martin Hepp (UniBW) wrote:

...
These are interesting statistics, maybe you want to blog about them or 
publish them in some other way?


Thanks to W3C, my preliminary report was automatically assigned a 
dereferencable URI:


http://lists.w3.org/Archives/Public/semantic-web/2009Jun/0220.html

;-)

Martin


begin:vcard
fn:Martin Hepp
n:Hepp;Martin
org:Bundeswehr University Munich;E-Business and Web Science Research Group
adr:;;Werner-Heisenberg-Web 39;Neubiberg;;D-85577;Germany
email;internet:mh...@computer.org
tel;work:+49 89 6004 4217
tel;pager:skype: mfhepp
url:http://www.heppnetz.de
version:2.1
end:vcard

Re: .htaccess a major bottleneck to Semantic Web adoption / Was: Re: RDFa vs RDF/XML and content negotiation

2009-06-25 Thread Martin Hepp (UniBW) 
As mostly, recently ;-), I agree with Kingsley - I did not want to say 
that proper usage of http is bad or obsolete. But it turned out 
unfeasible for broad adoption my owners of small Web sites.


For huge data sources and for vocabularies, the current recipes are 
fine. But I want every single business in the world to use GoodRelations 
for publishing at least their opening hours - 19 Million companies in 
Europe alone. I cannot explain to every single one of them how to 
configure their server.


Another thing that might have gone lost in the discussion: Even though 
we knew the recipes, helping the site owners was difficult, because we 
experienced hundreds of different environments - preexisting .htaccess, 
MS IIS, hoster-specific scenarios, etc. So the problem is really that 
such a low-level technique is not feasible if you face so much diversity 
as far as the target system is concerned.


Maybe some day a certain LOD/SW package will be installed by default on 
most servers. But we cannot wait till then.


BTW: We did not even require the full beauty of LOD best practices. We 
simply want them to do as described here:


http://www.ebusiness-unibw.org/wiki/GoodRelations_Recipe_8

Best
Martin

Kingsley Idehen wrote:

Giovanni Tummarello wrote:
That can then be inserted as code snippets via copy-and-paste to any 
XHTML

document.

Any opinions?



Great, why bother with any other solution.
even talking about any other solution is extraordinarely bad for the
public perception of the semantic web community.

Giovanni


  

Giovanni,

We don't need mutual exclusivity re. Linked Data Deployment.

There's nothing wrong with an array of options that cover a broad 
range of Linked Data deployment circumstances.


HTTP is the essence of the Web (what makes it what it is), and Content 
Negotiation is intrinsic to HTTP.


Don't throw the baby out with the bathwater, really.




--
--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  mh...@computer.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
http://www.heppnetz.de/ (personal)
skype:   mfhepp 
twitter: mfhepp


Check out the GoodRelations vocabulary for E-Commerce on the Web of Data!


Webcast:
http://www.heppnetz.de/projects/goodrelations/webcast/

Talk at the Semantic Technology Conference 2009: 
"Semantic Web-based E-Commerce: The GoodRelations Ontology"

http://tinyurl.com/semtech-hepp

Tool for registering your business:
http://www.ebusiness-unibw.org/tools/goodrelations-annotator/

Overview article on Semantic Universe:
http://tinyurl.com/goodrelations-universe

Project page and resources for developers:
http://purl.org/goodrelations/

Tutorial materials:
Tutorial at ESWC 2009: The Web of Data for E-Commerce in One Day: A Hands-on 
Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey

http://www.ebusiness-unibw.org/wiki/GoodRelations_Tutorial_ESWC2009




begin:vcard
fn:Martin Hepp
n:Hepp;Martin
org:Bundeswehr University Munich;E-Business and Web Science Research Group
adr:;;Werner-Heisenberg-Web 39;Neubiberg;;D-85577;Germany
email;internet:mh...@computer.org
tel;work:+49 89 6004 4217
tel;pager:skype: mfhepp
url:http://www.heppnetz.de
version:2.1
end:vcard

Re: .htaccess a major bottleneck to Semantic Web adoption / Was: Re: RDFa vs RDF/XML and content negotiation

2009-06-25 Thread Martin Hepp (UniBW) 

Hi John:
We also thought of hosting meta-data for the users, but I don't like 
that because I want the shop operators to feel ownership for the data:
If the opening hours expressed in RDF are wrong but on the personal Web 
page of that restaurant, anybody facing closed doors will blame the 
restaurant.
If the outdated opening hours in RDF are on my SW server, the unlucky 
customer will blame the Semantic Web for having crappy data.


So maybe the snippet solution in RDFa is the best.

Best
Martin


John Graybeal wrote:
This is a principal reason MMI decided to offer a vocabulary server 
for its community. The idea that 1000 different providers would all 
develop a level of web competency (for which there is evidence at only 
a minority of providers) for serving their RDF and OWL content -- let 
alone the capability to do versioning, adopt best practices, learn 
SKOS, and whatever other nuances are called for -- seemed like a 
non-starter.


This is not exactly the same problem you're facing, but something to 
consider (if the model allows it) is creating a way to serve the 
annotations from another place than the host institution.  The 
institution can refer to those served files from their own sites, and 
even update them remotely, but not have to incur all the management 
overhead as standards improve, files change, authorship changes, etc.


(Which is not to disagree with your plan either. That sounds fine.)

One other delivery model could be for them to give you an existing 
HTML, you give them back the modified HTML (saves them cutting and 
pasting steps?).


I'm a little ignorant on your tools and processes, so apologies if 
these are non-starters.


John


On Jun 25, 2009, at 9:44 AM, Martin Hepp (UniBW) wrote:


Hi all:

After about two months of helping people generate RDF/XML metadata 
for their businesses using the GoodRelations annotator [1],
I have quite some evidence that the current best practices of using 
.htaccess are a MAJOR bottleneck for the adoption of Semantic Web 
technology.


Just some data:
- We have several hundred entries in the annotator log - most people 
spend 10 or more minutes to create a reasonable description of 
themselves.
- Even though they all operate some sort of Web sites, less than 30 % 
of them manage to upload/publish a single *.rdf file in their root 
directory.
- Of those 30%, only a fraction manage to set up content negotiation 
properly, even though we provide a step-by-step recipe.


The effects are
- URIs that are not dereferencable,
- incorrect media types and
and other problems.

When investigating the causes and trying to help people, we 
encountered a variety of configurations and causes that we did not 
expect. It turned out that helping people just managing this tiny 
step of publishing  Semantic Web data would turn into a full-time job 
for 1 - 2 administrators.


Typical causes of problems are
- Lack of privileges for .htaccess (many cheap hosting packages give 
limited or no access to .htaccess)
- Users without Unix background had trouble name a file so that it 
begins with a dot

- Microsoft IIS require completely different recipes
- Many users have access just at a CMS level

Bottomline:
- For researchers in the field, it is a doable task to set up an 
Apache server so that it serves RDF content according to current best 
practices.
- For most people out there in reality, this is regularly a 
prohibitively difficult task, both because of a lack of skills and a 
variety in the technical environments that turns into an engineering 
challenge what is easy on the textbook-level.


As a consequence, we will modify our tool so that it generates 
"dummy" RDFa code with span/div that *just* represents the meta-data 
without interfering with the presentation layer.
That can then be inserted as code snippets via copy-and-paste to any 
XHTML document.


Any opinions?

Best
Martin

[1]  http://www.ebusiness-unibw.org/tools/goodrelations-annotator/

Danny Ayers wrote:

Thank you for the excellent questions, Bill.

Right now IMHO the best bet is probably just to pick whichever format
you are most comfortable with (yup "it depends") and use that as the
single source, transforming perhaps with scripts to generate the
alternate representations for conneg.

As far as I'm aware we don't yet have an easy templating engine for
RDFa, so I suspect having that as the source is probably a good choice
for typical Web applications.

As mentioned already GRDDL is available for transforming on the fly,
though I'm not sure of the level of client engine support at present.
Ditto providing a SPARQL endpoint is another way of maximising the
surface area of the data.

But the key step has clearly been taken, that decision to publish data
directly without needing the human element to interpret it.

I claim *win* for the Semantic Web, even if it'll still be a few years
before we see applications exploiting it in a way t

Re: .htaccess a major bottleneck to Semantic Web adoption / Was: Re: RDFa vs RDF/XML and content negotiation

2009-06-26 Thread Martin Hepp (UniBW) 

Hi Toby,

Toby A Inkster wrote:

On 25 Jun 2009, at 21:18, Pat Hayes wrote:

If [RDF] requires people to tinker with files with names starting 
with a dot [...] then the entire SWeb architecture is fundamentally 
broken.


RDF doesn't. Apache does.

Many hosts do have front ends for configuring Apache, allowing 
redirects to be set up and content-types configured by filling in 
simple web forms. But there are such a variety of these tools with 
different capabilities and different interfaces that it would be 
difficult to produce advice suitable for them all, so instead 
".htaccess" recipes are provided instead.


That said, there are a couple of steps that Martin could remove from 
his recipe and still be promoting reasonably good practice:


Step 5a - this rewrites  to 
. Other than aesthetics, there's 
no real reason to do this. Yes, I've read timbl's old Cool URIs 
document, and understand about not wanting to include hints of file 
format in a URI. But realistically, this file is going to always 
include some RDF - perhaps in a non-RDF/XML serialisation, but I don't 
see anything inappropriate about serving other RDF serialisations 
using a ".rdf" URL, provided the correct MIME type is used.


Yes - while it breaks my heart, we will uses URIs including the .rdf 
extension in the future. Comparing benefits and trouble caused, it is 
not worth pushing it.
Step 5b - the default Apache mime.types file knows about 
application/rdf+xml, so this should be unnecessary. Perhaps instead 
have a GoodRelations "validator" which checks that the content type is 
correct, and only suggests this when it is found to be otherwise.
Well, our experience is that about 30% of the servers don't use the 
proper mime type by default, which causes trouble with many semweb 
applications


Steps 3 and 4 could be amalgamated into a single "validate your RDF 
file" step using the aforementioned validator. The validator would be 
written so that, upon a successful validation, it offers single-click 
options to ping semweb search engines, and Yahoo (via a 
RDF/XML->DataRSS converter).


With those adjustments, the recipe would just be:

1. Upload your RDF file.
2. Add a rel="meta" link to it.
3. Validate using our helpful tool.

Yes, that would be a good option. But actually I am prone to go for a 
more radical shift, which is offering just three alternative publication 
mechanisms:


a) download RDF/XML or N3 file (for expert users)
b) download RDFa snippet that just represents the RDF/XML content (i.e. 
such that it does not have to be consolidated with the "presentation 
level" part of the Web page.
c) have us publish it on our servers (this will require some techniques 
of validating users, update / refresh - requires some more thoughts.


Best

Martin

--
--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  mh...@computer.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
http://www.heppnetz.de/ (personal)
skype:   mfhepp 
twitter: mfhepp


Check out the GoodRelations vocabulary for E-Commerce on the Web of Data!


Webcast:
http://www.heppnetz.de/projects/goodrelations/webcast/

Talk at the Semantic Technology Conference 2009: 
"Semantic Web-based E-Commerce: The GoodRelations Ontology"

http://tinyurl.com/semtech-hepp

Tool for registering your business:
http://www.ebusiness-unibw.org/tools/goodrelations-annotator/

Overview article on Semantic Universe:
http://tinyurl.com/goodrelations-universe

Project page and resources for developers:
http://purl.org/goodrelations/

Tutorial materials:
Tutorial at ESWC 2009: The Web of Data for E-Commerce in One Day: A Hands-on 
Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey

http://www.ebusiness-unibw.org/wiki/GoodRelations_Tutorial_ESWC2009




begin:vcard
fn:Martin Hepp
n:Hepp;Martin
org:Bundeswehr University Munich;E-Business and Web Science Research Group
adr:;;Werner-Heisenberg-Web 39;Neubiberg;;D-85577;Germany
email;internet:mh...@computer.org
tel;work:+49 89 6004 4217
tel;pager:skype: mfhepp
url:http://www.heppnetz.de
version:2.1
end:vcard

Re: .htaccess a major bottleneck to Semantic Web adoption / Was: Re: RDFa vs RDF/XML and content negotiation

2009-06-26 Thread Martin Hepp (UniBW) 

Kingsley:
So basically you think that RDF hosting will ne a new market segment 
with services like small RDF hosting services (same as private Web space 
packages), free hosting (maybe with ads included in the RDF), etc.?

Martin


Kingsley Idehen wrote:
>Martin:
>I think having a third party relay inaccurate opening and closing 
hours is a feature re. the GoodRelations, RDFa, Linked Data, and pinger 
services combo; it makes the "opportunity cost" of not putting the >RDFa 
embellished HTML doc  (from #3) on the server, palpable :-)  Thus,  we 
end up with a closed loop, that simply lets the Web do the REST 
(including social and political cajoling re. doc publishing).


--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  mh...@computer.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
http://www.heppnetz.de/ (personal)
skype:   mfhepp 
twitter: mfhepp


Check out the GoodRelations vocabulary for E-Commerce on the Web of Data!


Webcast:
http://www.heppnetz.de/projects/goodrelations/webcast/

Talk at the Semantic Technology Conference 2009: 
"Semantic Web-based E-Commerce: The GoodRelations Ontology"

http://tinyurl.com/semtech-hepp

Tool for registering your business:
http://www.ebusiness-unibw.org/tools/goodrelations-annotator/

Overview article on Semantic Universe:
http://tinyurl.com/goodrelations-universe

Project page and resources for developers:
http://purl.org/goodrelations/

Tutorial materials:
Tutorial at ESWC 2009: The Web of Data for E-Commerce in One Day: A Hands-on 
Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey

http://www.ebusiness-unibw.org/wiki/GoodRelations_Tutorial_ESWC2009




begin:vcard
fn:Martin Hepp
n:Hepp;Martin
org:Bundeswehr University Munich;E-Business and Web Science Research Group
adr:;;Werner-Heisenberg-Web 39;Neubiberg;;D-85577;Germany
email;internet:mh...@computer.org
tel;work:+49 89 6004 4217
tel;pager:skype: mfhepp
url:http://www.heppnetz.de
version:2.1
end:vcard

Re: .htaccess a major bottleneck to Semantic Web adoption / Was: Re: RDFa vs RDF/XML and content negotiation

2009-06-27 Thread Martin Hepp (UniBW) 

So if this "hidden div / span" approach is not feasible, we got a problem.

The reason is that, as beautiful the idea is of using RDFa to make a) 
the human-readable presentation and b) the machine-readable meta-data 
link to the same literals, the problematic is it in reality once the 
structure of a) and b) are very different.


For very simple property-value pairs, embedding RDFa markup is no 
problem. But if you have a bit more complexity at the conceptual level 
and in particular if there are significant differences to the structure 
of the presentation (e.g. in terms of granularity, ordering of elements, 
etc.), it gets very, very messy and hard to maintain.


And you give up the clear separation of concerns between the conceptual 
level and the presentation level that XML brought about.


Maybe one should tell Google that this is not cloaking if SW meta-data 
is embedded...


But the snippet basically indicates that we should not recommend this 
practice.


Martin


Kingsley Idehen wrote:

Mark Birbeck wrote:

Hi Martin,

 
b) download RDFa snippet that just represents the RDF/XML content 
(i.e. such
that it does not have to be consolidated with the "presentation 
level" part

of the Web page.



By coincidence, I just read this:

  Hidden div's -- don't do it!
  It can be tempting to add all the content relevant for a rich snippet
  in one place on the page, mark it up, and then hide the entire block
  of text using CSS or other techniques. Don't do this! Mark up the
  content where it already exists. Google will not show content from
  hidden div's in Rich Snippets, and worse, this can be considered
  cloaking by Google's spam detection systems. [1]

Regards,

Mark

[1] 
 



  

Martin/Mark,

Time to make a sample RDFa doc that includes very detailed GR based 
metadata.


Mark: Should we be describing our docs for Google, fundamentally? I 
really think Google should actually recalibrate back to the Web etc..





--
--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  mh...@computer.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
http://www.heppnetz.de/ (personal)
skype:   mfhepp 
twitter: mfhepp


Check out the GoodRelations vocabulary for E-Commerce on the Web of Data!


Webcast:
http://www.heppnetz.de/projects/goodrelations/webcast/

Talk at the Semantic Technology Conference 2009: 
"Semantic Web-based E-Commerce: The GoodRelations Ontology"

http://tinyurl.com/semtech-hepp

Tool for registering your business:
http://www.ebusiness-unibw.org/tools/goodrelations-annotator/

Overview article on Semantic Universe:
http://tinyurl.com/goodrelations-universe

Project page and resources for developers:
http://purl.org/goodrelations/

Tutorial materials:
Tutorial at ESWC 2009: The Web of Data for E-Commerce in One Day: A Hands-on 
Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey

http://www.ebusiness-unibw.org/wiki/GoodRelations_Tutorial_ESWC2009




begin:vcard
fn:Martin Hepp
n:Hepp;Martin
org:Bundeswehr University Munich;E-Business and Web Science Research Group
adr:;;Werner-Heisenberg-Web 39;Neubiberg;;D-85577;Germany
email;internet:mh...@computer.org
tel;work:+49 89 6004 4217
tel;pager:skype: mfhepp
url:http://www.heppnetz.de
version:2.1
end:vcard

Re: .htaccess a major bottleneck to Semantic Web adoption / Was: Re: RDFa vs RDF/XML and content negotiation

2009-06-29 Thread Martin Hepp (UniBW) 

Hi Tom:


Amen. Thank you for writing this. I completely agree. RDFa has some
great use cases but (like any technology) has its limitations. Let's
not oversell it.


We seem to agree on the observation, but not on the conclusion. What I 
want and suggest is using RDFa also for exchanging a bit more complex 
RDF models / data by simply using a lot of div / span or whatever 
elements that represent the RDF part in the SAME document BUT NOT too 
closely linked with the presentation level.



This is the car I want to sell
Actually, a pretty cool car, for only $1.000. Offer valid through July 
31, 2009



... my whole RDF in RDFa



The advantage of that would be that

- you just have to maintain ONE file,
- data and metadata are close by, so the likelihood of being up to date 
increases, and

- at the same time, the code does not get too messy.
- Also - no problems setting up the server (*).
- Easy to create on-line tools that generate RDFa snippets for simple 
pasting.

- Yahoo and Google will most likely honor RDFa meta-data only.

Also note that often the literal values will be in content attributes 
anyway, because the string for the presentation is not suitable as 
meta-data content anyway (e.g.  dates, country codes,...)


I think the approach sketched above would be a cheap and useful way of 
publishing RDF meta-data. It could work with CMS / blogging software 
etc.  Imaging if we were able to allow eBay sellers to put GoodRelations 
meta-data directly into the open XHTML part of their product description.


The main problem with my proposal is that there is the risk that Google 
considers this "cloaking" and may remove respective resources from their 
index (Mark raised that issue). If that risk was confirmed, we would 
really have a problem. Imagine me selling Semantic Web markup as a step 
beyond SEO ... and the first consequence of following my advice is being 
removed from the Google index.


A second problem is that if the document contains nodes that have no 
counterpart on the presentation level (e.g. intermediate nodes for 
holding n-ary relations), then they will also not be dereferencable. The 
same holds for URIs or  nodes that are outside the scope of the actual 
RDFa / XHTML document - I see no simple way of serving neither XHTML nor 
RDF content for those.


Best

Martin



Tom Heath wrote:

Martin,

2009/6/27 Martin Hepp (UniBW) :
  

So if this "hidden div / span" approach is not feasible, we got a problem.

The reason is that, as beautiful the idea is of using RDFa to make a) the
human-readable presentation and b) the machine-readable meta-data link to
the same literals, the problematic is it in reality once the structure of a)
and b) are very different.

For very simple property-value pairs, embedding RDFa markup is no problem.
But if you have a bit more complexity at the conceptual level and in
particular if there are significant differences to the structure of the
presentation (e.g. in terms of granularity, ordering of elements, etc.), it
gets very, very messy and hard to maintain.



Amen. Thank you for writing this. I completely agree. RDFa has some
great use cases but (like any technology) has its limitations. Let's
not oversell it.

Tom.

  


--
--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  mh...@computer.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
http://www.heppnetz.de/ (personal)
skype:   mfhepp 
twitter: mfhepp


Check out the GoodRelations vocabulary for E-Commerce on the Web of Data!


Webcast:
http://www.heppnetz.de/projects/goodrelations/webcast/

Talk at the Semantic Technology Conference 2009: 
"Semantic Web-based E-Commerce: The GoodRelations Ontology"

http://tinyurl.com/semtech-hepp

Tool for registering your business:
http://www.ebusiness-unibw.org/tools/goodrelations-annotator/

Overview article on Semantic Universe:
http://tinyurl.com/goodrelations-universe

Project page and resources for developers:
http://purl.org/goodrelations/

Tutorial materials:
Tutorial at ESWC 2009: The Web of Data for E-Commerce in One Day: A Hands-on 
Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey

http://www.ebusiness-unibw.org/wiki/GoodRelations_Tutorial_ESWC2009




begin:vcard
fn:Martin Hepp
n:Hepp;Martin
org:Bundeswehr University Munich;E-Business and Web Science Research Group
adr:;;Werner-Heisenberg-Web 39;Neubiberg;;D-85577;Germany
email;internet:mh...@computer.org
tel;work:+49 89 6004 4217
tel;pager:skype: mfhepp
url:http://www.heppnetz.de
version:2.1
end:vcard

Re: .htaccess a major bottleneck to Semantic Web adoption / Was: Re: RDFa vs RDF/XML and content negotiation

2009-06-29 Thread Martin Hepp (UniBW) 

Hi Yihong:
I am a big fan of Codd's "one fact in one place" credo. However, in this
particular case, that principle is violated anyway, since the literal
values are often duplicated for presentation and meta-data prupolses
anyway (think of "2009-06-29" vs. "June 29, 2009"). Second, for dynamic
Web apps, it does not really matter whether the same fact is exposed
once or twice, since the central location is one place in the database
anyway. Third, this is the only way how a tool like the GoodRelations
annotator [1] can create RDFa snippets for simple copy-and-paste into
existing pages.

Also note that in the particular case of RDFa, the principle of "one
fact in one place" clashes with the "separation of concerns" principle,
in particular, that of keeping data and presentation separate.

The textbook-style "beauty of simplicity" of RDFa holds for adding a
dc:creator property to a string value that is the same for presentation
and at the data level. Beyond that, RDFa can create code that is very
hard to maintain. In fact, I know that a large software company
dismissed the use of RDFa in their products because of the unmanageable
mix of conceptual and presentation layer.

As far as security is concerned: I there is no real difference in my 
proposal, as the "content" attribute of RDFa allows serving different 
data to human and to machines, and this is a needed feature anyway. 
Digital signatures at the document or element level and / or data 
provenance approached will likely cater for that.


Best

Martin

Yihong Ding wrote:

Hi Kingley and Martin,

A potential problem of the model Martin suggested is that the same data has
to be presented at least TWICE in one document. Although the RDFa portion of
the data is supposed to be automatically generated, it, however, does not
prohibit anybody from manually revising it. Therefore, it leaves a huge hole
for the hackers (or anybody who want to do some deceptive job). In our
imperfect world, this problem is severe.

Adding an extra layer of data mapping always causes additional work on data
maintenance. This time, the extra work could be a nightmare though the
architecture is neat.

yihong


On Mon, Jun 29, 2009 at 8:03 AM, Kingsley Idehen wrote:

  

Martin Hepp (UniBW) wrote:



Hi Tom:

  

Amen. Thank you for writing this. I completely agree. RDFa has some
great use cases but (like any technology) has its limitations. Let's
not oversell it.


We seem to agree on the observation, but not on the conclusion. What I
want and suggest is using RDFa also for exchanging a bit more complex RDF
models / data by simply using a lot of div / span or whatever elements that
represent the RDF part in the SAME document BUT NOT too closely linked with
the presentation level.


This is the car I want to sell
Actually, a pretty cool car, for only $1.000. Offer valid through July 31,
2009


... my whole RDF in RDFa
 


The advantage of that would be that

- you just have to maintain ONE file,
- data and metadata are close by, so the likelihood of being up to date
increases, and
- at the same time, the code does not get too messy.
- Also - no problems setting up the server (*).
- Easy to create on-line tools that generate RDFa snippets for simple
pasting.
- Yahoo and Google will most likely honor RDFa meta-data only.

Also note that often the literal values will be in content attributes
anyway, because the string for the presentation is not suitable as meta-data
content anyway (e.g.  dates, country codes,...)

I think the approach sketched above would be a cheap and useful way of
publishing RDF meta-data. It could work with CMS / blogging software etc.
 Imaging if we were able to allow eBay sellers to put GoodRelations
meta-data directly into the open XHTML part of their product description.

The main problem with my proposal is that there is the risk that Google
considers this "cloaking" and may remove respective resources from their
index (Mark raised that issue). If that risk was confirmed, we would really
have a problem. Imagine me selling Semantic Web markup as a step beyond SEO
... and the first consequence of following my advice is being removed from
the Google index.

A second problem is that if the document contains nodes that have no
counterpart on the presentation level (e.g. intermediate nodes for holding
n-ary relations), then they will also not be dereferencable. The same holds
for URIs or  nodes that are outside the scope of the actual RDFa / XHTML
document - I see no simple way of serving neither XHTML nor RDF content for
those.

  

Martin,

If Google doesn't see invisible DIVs as cloaking, the issue vaporizes.

Also, if people take the SEO + SDQ (Linked Data Expressed in RDFa) approach
they will at least remain in the Google index via usual SEO oriented keyword
gimmickry, albeit generally suboptimal.

If we make a recipe doc showcasing these i

Re: .htaccess a major bottleneck to Semantic Web adoption / Was: Re: RDFa vs RDF/XML and content negotiation

2009-07-01 Thread Martin Hepp (UniBW) 

Dear all:
Fyi - I am in contact with Google as for the clarification of what kind 
of empty div/span elements are considered acceptable in the context of 
RDFa. It may take a few days to get an official statement. Just so that 
you know it is being taken care of...


Martin



Mark Birbeck wrote:

Hi Martin,

  

b) download RDFa snippet that just represents the RDF/XML content (i.e. such
that it does not have to be consolidated with the "presentation level" part
of the Web page.



By coincidence, I just read this:

  Hidden div's -- don't do it!
  It can be tempting to add all the content relevant for a rich snippet
  in one place on the page, mark it up, and then hide the entire block
  of text using CSS or other techniques. Don't do this! Mark up the
  content where it already exists. Google will not show content from
  hidden div's in Rich Snippets, and worse, this can be considered
  cloaking by Google's spam detection systems. [1]

Regards,

Mark

[1] 


  


--
--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  mh...@computer.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
http://www.heppnetz.de/ (personal)
skype:   mfhepp 
twitter: mfhepp


Check out the GoodRelations vocabulary for E-Commerce on the Web of Data!


Webcast:
http://www.heppnetz.de/projects/goodrelations/webcast/

Talk at the Semantic Technology Conference 2009: 
"Semantic Web-based E-Commerce: The GoodRelations Ontology"

http://tinyurl.com/semtech-hepp

Tool for registering your business:
http://www.ebusiness-unibw.org/tools/goodrelations-annotator/

Overview article on Semantic Universe:
http://tinyurl.com/goodrelations-universe

Project page and resources for developers:
http://purl.org/goodrelations/

Tutorial materials:
Tutorial at ESWC 2009: The Web of Data for E-Commerce in One Day: A Hands-on 
Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey

http://www.ebusiness-unibw.org/wiki/GoodRelations_Tutorial_ESWC2009




begin:vcard
fn:Martin Hepp
n:Hepp;Martin
org:Bundeswehr University Munich;E-Business and Web Science Research Group
adr:;;Werner-Heisenberg-Web 39;Neubiberg;;D-85577;Germany
email;internet:mh...@computer.org
tel;work:+49 89 6004 4217
tel;pager:skype: mfhepp
url:http://www.heppnetz.de
version:2.1
end:vcard

Re: .htaccess a major bottleneck to Semantic Web adoption / Was: Re: RDFa vs RDF/XML and content negotiation

2009-07-08 Thread Martin Hepp (UniBW) 

Google has just changed the wording of the documentation:

http://knol.google.com/k/google-rich-snippets/google-rich-snippets/32la2chf8l79m/1#

The mentioning of cloaking risk is removed. While this is not final 
clearance,

it is a nice sign that our concerns are heard.

Best
Martin


Martin Hepp (UniBW) wrote:

Dear all:
Fyi - I am in contact with Google as for the clarification of what 
kind of empty div/span elements are considered acceptable in the 
context of RDFa. It may take a few days to get an official statement. 
Just so that you know it is being taken care of...


Martin



Mark Birbeck wrote:

Hi Martin,

 
b) download RDFa snippet that just represents the RDF/XML content 
(i.e. such
that it does not have to be consolidated with the "presentation 
level" part

of the Web page.



By coincidence, I just read this:

  Hidden div's -- don't do it!
  It can be tempting to add all the content relevant for a rich snippet
  in one place on the page, mark it up, and then hide the entire block
  of text using CSS or other techniques. Don't do this! Mark up the
  content where it already exists. Google will not show content from
  hidden div's in Rich Snippets, and worse, this can be considered
  cloaking by Google's spam detection systems. [1]

Regards,

Mark

[1] 
<http://knol.google.com/k/google-rich-snippets/google-rich-snippets/32la2chf8l79m/1#> 



  




--
--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  mh...@computer.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
http://www.heppnetz.de/ (personal)
skype:   mfhepp 
twitter: mfhepp


Check out the GoodRelations vocabulary for E-Commerce on the Web of Data!


Webcast:
http://www.heppnetz.de/projects/goodrelations/webcast/

Talk at the Semantic Technology Conference 2009: 
"Semantic Web-based E-Commerce: The GoodRelations Ontology"

http://tinyurl.com/semtech-hepp

Tool for registering your business:
http://www.ebusiness-unibw.org/tools/goodrelations-annotator/

Overview article on Semantic Universe:
http://tinyurl.com/goodrelations-universe

Project page and resources for developers:
http://purl.org/goodrelations/

Tutorial materials:
Tutorial at ESWC 2009: The Web of Data for E-Commerce in One Day: A Hands-on 
Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey

http://www.ebusiness-unibw.org/wiki/GoodRelations_Tutorial_ESWC2009




begin:vcard
fn:Martin Hepp
n:Hepp;Martin
org:Bundeswehr University Munich;E-Business and Web Science Research Group
adr:;;Werner-Heisenberg-Web 39;Neubiberg;;D-85577;Germany
email;internet:mh...@computer.org
tel;work:+49 89 6004 4217
tel;pager:skype: mfhepp
url:http://www.heppnetz.de
version:2.1
end:vcard

Excellent News for LOD: Yahoo Provides Tool for RDFa+GoodRelations for Site Owners

2009-07-09 Thread Martin Hepp (UniBW) 

Dear all:

Great news: ANY site owner in the world has now a clear incentive to add 
GoodRelations meta-data in RDFa to his/her page:


As of now, Yahoo will display price and offering details and other
meta-data of any e-commerce Web page if the site owner uses 
GoodRelations vocabulary elements.


Previously, such data was only used within special applications
developed in the Yahoo ecosystem. Now, every site owner can add
meta-data to enhance the search results of offers in Yahoo.

Just go to

http://developer.search.yahoo.com/help/objects/product

and click on the tab "RDFa - GoodRelation".

The tool generates mark-up patterns for copy-and paste into xhtml page 
content.


Thanks to Peter Mika and everybody at Yahoo for this initiative! It will
for sure help lower the entrance barrier for any business to use
Semantic Web technology in general and GoodRelations in particular.

Screenshots are at

http://www.ebusiness-unibw.org/wiki/GoodRelations_and_Yahoo_SearchMonkey

Best wishes

Martin

--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  mh...@computer.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
 http://www.heppnetz.de/ (personal)
skype:   mfhepp
twitter: mfhepp

Check out the GoodRelations vocabulary for E-Commerce on the Web of Data!


Webcast:
http://www.heppnetz.de/projects/goodrelations/webcast/

Talk at the Semantic Technology Conference 2009:
"Semantic Web-based E-Commerce: The GoodRelations Ontology"
http://tinyurl.com/semtech-hepp

Tool for registering your business:
http://www.ebusiness-unibw.org/tools/goodrelations-annotator/

Overview article on Semantic Universe:
http://tinyurl.com/goodrelations-universe

Project page and resources for developers:
http://purl.org/goodrelations/

Tutorial materials:
Tutorial at ESWC 2009: The Web of Data for E-Commerce in One Day: A 
Hands-on Introduction to the GoodRelations Ontology, RDFa, and Yahoo! 
SearchMonkey


http://www.ebusiness-unibw.org/wiki/GoodRelations_Tutorial_ESWC2009






--
--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  mh...@computer.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
 http://www.heppnetz.de/ (personal)
skype:   mfhepp
twitter: mfhepp

Check out the GoodRelations vocabulary for E-Commerce on the Web of Data!


Webcast:
http://www.heppnetz.de/projects/goodrelations/webcast/

Talk at the Semantic Technology Conference 2009:
"Semantic Web-based E-Commerce: The GoodRelations Ontology"
http://tinyurl.com/semtech-hepp

Tool for registering your business:
http://www.ebusiness-unibw.org/tools/goodrelations-annotator/

Overview article on Semantic Universe:
http://tinyurl.com/goodrelations-universe

Project page and resources for developers:
http://purl.org/goodrelations/

Tutorial materials:
Tutorial at ESWC 2009: The Web of Data for E-Commerce in One Day: A 
Hands-on Introduction to the GoodRelations Ontology, RDFa, and Yahoo! 
SearchMonkey


http://www.ebusiness-unibw.org/wiki/GoodRelations_Tutorial_ESWC2009



begin:vcard
fn:Martin Hepp
n:Hepp;Martin
org:Bundeswehr University Munich;E-Business and Web Science Research Group
adr:;;Werner-Heisenberg-Web 39;Neubiberg;;D-85577;Germany
email;internet:mh...@computer.org
tel;work:+49 89 6004 4217
tel;pager:skype: mfhepp
url:http://www.heppnetz.de
version:2.1
end:vcard

IJSWIS Special Issue on Scalability and Performance of Semantic Web Systems

2009-07-15 Thread Martin Hepp (UniBW) 

(apologies for cross-posting)
Dear all:

We are pleased to announce the latest issue of IJSWIS, which is a
special issue on "Scalability and Performance of Semantic Web Systems"

~~

The contents of the latest issue of:

International Journal on Semantic Web and Information Systems (IJSWIS)
Volume 5, Issue 2, April-July 2009
Published: Quarterly in Print and Electronically
ISSN: 1552-6283 EISSN: 1552-6291
www.ijswis.org
www.igi-global.com/ijswis

Editor-in-Chief: Amit Sheth, Kno.e.sis Center, Wright State  University, USA
Associate Editors:
Martin Hepp, Bundeswehr University Munich, Germany
Gottfried Vossen, University of Muenster, Germany

Impact factor of this journal: 1.8

GUEST EDITORIAL PREFACE

JSWIS 5(2)

Vassilis Christophides, Institute of Computer Science Foundation for
Research, Greece
Jeff Heflin, Lehigh University, USA

Recently, the W3C Linking Open Data effort has boosted the publication
and interlinkage of larger amounts of RDF/S datasets on the Semantic
Web (SW). Various ontologies and knowledge bases with millions of RDF/
S triplets from Wikipedia and other sources have been created and are
available online. It is clear that the increasing number and size of
the available SW datasets presents a real challenge for Semantic Web
systems in order to cope with scalability and performance concerns. In
this special issue, four articles cover a wide range of techniques for
benchmarking or enhancing the scalability of Semantic Web systems. The
authors build systems that process terabytes of data, have response
times on the order of seconds or less, and rely on reasoning to solve
problems not easily solved before.

To read the guest editorial preface, please consult this issue of
IJSWIS in your library.

PAPER ONE

The Berlin SPARQL Benchmark

Christian Bizer, Freie Universität Berlin, Germany
Andreas Schultz, Freie Universität Berlin, Germany

The SPARQL Query Language for RDF and the SPARQL Protocol for RDF are
implemented by a growing number of storage systems and used within
enterprise and open Web settings. As SPARQL is taken by the community,
there is a growing need for benchmarks to compare the performance of
storage systems that expose SPARQL endpoints via the SPARQL protocol.
Such systems include native RDF stores as well as systems that rewrite
SPARQL queries to SQL queries against non-RDF relational databases.
This article introduces the Berlin SPARQL Benchmark (BSBM) for
comparing the performance of native RDF stores with the performance of
SPARQL-to-SQL rewriters across architectures. This article discusses
the design of the BSBM benchmark and presents the results of a
benchmark experiment comparing the performance of four popular RDF
stores with the performance of two SPARQL-to-SQL rewriters as well as
the performance of two relational database management systems.

To obtain a copy of the entire article, click on the link below.
http://infosci-on-demand.com/content/details.asp?ID=33737

PAPER TWO

Learning of OWL Class Descriptions on Very Large Knowledge Bases

Sebastian Hellmann, Universität Leipzig, Germany
Jens Lehmann, Universität Leipzig, Germany
Sören Auer, Universität Leipzig, Germany

The vision of the Semantic Web is to make use of semantic
representations on the largest possible scale - the Web. Large
knowledge bases such as DBpedia, OpenCyc, GovTrack, and others are
emerging and are freely available as linked data and SPARQL endpoints.
Exploring and analysing such knowledge bases is a significant hurdle
for Semantic Web research and practice. As one possible direction for
tackling this problem, the authors present an approach for obtaining
complex class descriptions from objects in knowledge bases by using
machine learning techniques. They describe in detail how to leverage
existing techniques to achieve scalability on large knowledge bases
available as SPARQL endpoints or linked data.

To obtain a copy of the entire article, click on the link below.
http://infosci-on-demand.com/content/details.asp?ID=33738

PAPER THREE

Scalable Authoritative OWL Reasoning for the Web

Aidan Hogan, National University of Ireland, Ireland
Andreas Harth, National University of Ireland, Ireland
Axel Polleres, National University of Ireland, Ireland

In this article, the authors discuss the challenges of performing
reasoning on large scale RDF datasets from the Web. Using ter-Horst’s
pD* fragment of OWL as a base, the authors compose a rule-based
framework for application to Web data; they argue their decisions
using observations of undesirable examples taken directly from the
Web. The authors further temper their OWL fragment through
consideration of “authoritative stheirces,” which counter-acts an
observed behavitheir which we term “ontology hijacking”. This article
presents a system for performing rule-based forward-chaining reasoning
which they call SAOR (scalable authoritative OWL reasoned). Based upon
observed characteristics of Web d

Re: Excellent News for LOD: Yahoo Provides Tool for RDFa+GoodRelations for Site Owners

2009-07-15 Thread Martin Hepp (UniBW) 

Hi Seth:


Well at first blush this is good news.  But then why do we want to use
a  vocabulary like product:listPrice which is locked to a specific
yahoo domain: http://search.yahoo.com/searchmonkey/product/ ?  Is
Google going to come along with another different word for that?  Then
which one does a catalog owner choose?



Note that the Yahoo "product" vocabulary is a legacy from earlier 
vocabularies. You can use pure GoodRelations for 99% iof the current 
usages of that vocabulary and it will be equally honored by 
SearchMonkey, afaik. Make sure you click on the "RDFa + GoodRelations" 
tab at


http://developer.search.yahoo.com/help/objects/product

So you can also use

   
  

 
 
 34.99
 USD
 


etc.

I will publish a more complete example at

http://www.ebusiness-unibw.org/wiki/GoodRelations_Examples

shortly.


 Is
Google going to come along with another different word for that?  Then
which one does a catalog owner choose?



I am currently in contact with Google and trying to communicate the 
advantages of using standard vocabularies for meta-data, and I think 
there are strong arguments.


Also note that it is fairly easy to transform any Google-specific 
mark-up into standardized GoodRelations mark-up, and that several 
related tools are in the making.


Best
Martin


Seth Russell wrote:

Well at first blush this is good news.  But then why do we want to use
a  vocabulary like product:listPrice which is locked to a specific
yahoo domain: http://search.yahoo.com/searchmonkey/product/ ?  Is
Google going to come along with another different word for that?  Then
which one does a catalog owner choose?

Re this example from the referenced page:

http://search.yahoo.com/searchmonkey/product/";
xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#";>

27.99


Startech Serial ATA Cable - 45.72cm - Red


--
Seth Russell
www.speaktomecatalog.com


On Thu, Jul 9, 2009 at 8:24 AM, Martin Hepp (UniBW)
 wrote:
  

Dear all:

Great news: ANY site owner in the world has now a clear incentive to add 
GoodRelations meta-data in RDFa to his/her page:

As of now, Yahoo will display price and offering details and other
meta-data of any e-commerce Web page if the site owner uses GoodRelations 
vocabulary elements.

Previously, such data was only used within special applications
developed in the Yahoo ecosystem. Now, every site owner can add
meta-data to enhance the search results of offers in Yahoo.

Just go to

http://developer.search.yahoo.com/help/objects/product

and click on the tab "RDFa - GoodRelation".

The tool generates mark-up patterns for copy-and paste into xhtml page content.

Thanks to Peter Mika and everybody at Yahoo for this initiative! It will
for sure help lower the entrance barrier for any business to use
Semantic Web technology in general and GoodRelations in particular.

Screenshots are at

http://www.ebusiness-unibw.org/wiki/GoodRelations_and_Yahoo_SearchMonkey

Best wishes

Martin

--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  mh...@computer.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
http://www.heppnetz.de/ (personal)
skype:   mfhepp
twitter: mfhepp

Check out the GoodRelations vocabulary for E-Commerce on the Web of Data!


Webcast:
http://www.heppnetz.de/projects/goodrelations/webcast/

Talk at the Semantic Technology Conference 2009:
"Semantic Web-based E-Commerce: The GoodRelations Ontology"
http://tinyurl.com/semtech-hepp

Tool for registering your business:
http://www.ebusiness-unibw.org/tools/goodrelations-annotator/

Overview article on Semantic Universe:
http://tinyurl.com/goodrelations-universe

Project page and resources for developers:
http://purl.org/goodrelations/

Tutorial materials:
Tutorial at ESWC 2009: The Web of Data for E-Commerce in One Day: A Hands-on 
Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey

http://www.ebusiness-unibw.org/wiki/GoodRelations_Tutorial_ESWC2009






--
--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  mh...@computer.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
http://www.heppnetz.de/ (personal)
skype:   mfhepp
twitter: mfhepp

Check out the GoodRelations vocabulary for E-Commerce on the Web of Data!


Webcast:
http://www.heppnetz.de/projects/goodrelations/webcast/

Talk at the Semantic Technology Conference 2009:
"Semantic Web-based E-Commerce: The GoodRelations Ontology"
http://tinyur

Re: Excellent News for LOD: Yahoo Provides Tool for RDFa+GoodRelations for Site Owners

2009-07-16 Thread Martin Hepp (UniBW) 

Hi Danny,
thanks.
Note that the value proposition of more structure and a higher link 
density in commerce data is not even tougher price comparison shopping, 
but "deep comparison shopping" - a better match between the diversity of 
offers and their individual value proposion on one hand and the 
diversity of consumer preferences on the other hand. The current web 
forces us to reduce the search space prematurely to very few makes and 
models and then watch for the price only, because we cannot search and 
compare across sites.


See the my sketchy "Deep Comparison Shopping" presentation at

http://www.slideshare.net/mhepp/deep-comparison-shopping-1591651


Danny Ayers wrote:

Chipping in a little late - yep, this really is excellent news.

E-commerce was a huge driver for the Web (/me sidesteps the bust),
there's every reason it could be a shot in the arm for the semweb too.

Also the lure of shopkeeper $$$s makes this kind of thing great
pedagogical material - note the old MS demo Northwind database (btw
RDFized by Kingsley & co.) and Java EE Pet Store [1].

Speaking of $$$s, I reckon there's a significant market opening for an
out-of-the-box semweb-enabled online store 'solution'.

  
Incidentally I've still not got around to figuring out the part-whole

product description as mentioned at [2] (s/Tinocaster/Vinocaster -
there was a preexisting Tinocaster :) so any suggestions there would
still be appreciated.

  
Yep, the fully composition & substitution ontology is still on my 
agenda, but not top priority.

Note that GoodRelations already offers basic patterns for modeling

- bundles ("one bottle of red wine, a pizza, and an iPhone for $500") 
via gr:includesObject

- spare parts via gr:isAccessoryOrSparePartFor
- related products via gr:isSimilarTo
- consumables via gr:isConsumableFor

Cheers,
Martin


Cheers,
Danny.

[1] http://java.sun.com/developer/releases/petstore/
[2] http://lists.w3.org/Archives/Public/semantic-web/2007Apr/0024.html

  


--
--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  mh...@computer.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
http://www.heppnetz.de/ (personal)
skype:   mfhepp 
twitter: mfhepp


Check out the GoodRelations vocabulary for E-Commerce on the Web of Data!


Webcast:
http://www.heppnetz.de/projects/goodrelations/webcast/

Talk at the Semantic Technology Conference 2009: 
"Semantic Web-based E-Commerce: The GoodRelations Ontology"

http://tinyurl.com/semtech-hepp

Tool for registering your business:
http://www.ebusiness-unibw.org/tools/goodrelations-annotator/

Overview article on Semantic Universe:
http://tinyurl.com/goodrelations-universe

Project page and resources for developers:
http://purl.org/goodrelations/

Tutorial materials:
Tutorial at ESWC 2009: The Web of Data for E-Commerce in One Day: A Hands-on 
Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey

http://www.ebusiness-unibw.org/wiki/GoodRelations_Tutorial_ESWC2009




begin:vcard
fn:Martin Hepp
n:Hepp;Martin
org:Bundeswehr University Munich;E-Business and Web Science Research Group
adr:;;Werner-Heisenberg-Web 39;Neubiberg;;D-85577;Germany
email;internet:mh...@computer.org
tel;work:+49 89 6004 4217
tel;pager:skype: mfhepp
url:http://www.heppnetz.de
version:2.1
end:vcard

Recipe for Shops: Showing up in Yahoo and in the Web of Data in One Turn

2009-07-21 Thread Martin Hepp (UniBW) 

Dear all:

I just completed a recipe meant for larger audiences (Web developers,
SEO companies) on how a business can enrich its pages using
RDFa+GoodRelations so that the data
- shows up in Yahoo AND
- it at the same time useful for comprehensive RDF applications.

The recipe is at

http://tr.im/rAbN

It tries to combine pure recipes from the RDF world with the "Web
developer's" how-tos provided by Yahoo.

Any feedback is very welcome.

Best

Martin Hepp

--
--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  mh...@computer.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
 http://www.heppnetz.de/ (personal)
skype:   mfhepp
twitter: mfhepp

Check out the GoodRelations vocabulary for E-Commerce on the Web of Data!


Webcast:
http://www.heppnetz.de/projects/goodrelations/webcast/

Talk at the Semantic Technology Conference 2009:
"Semantic Web-based E-Commerce: The GoodRelations Ontology"
http://tinyurl.com/semtech-hepp

Tool for registering your business:
http://www.ebusiness-unibw.org/tools/goodrelations-annotator/

Overview article on Semantic Universe:
http://tinyurl.com/goodrelations-universe

Project page and resources for developers:
http://purl.org/goodrelations/

Tutorial materials:
Tutorial at ESWC 2009: The Web of Data for E-Commerce in One Day: A 
Hands-on Introduction to the GoodRelations Ontology, RDFa, and Yahoo! 
SearchMonkey


http://www.ebusiness-unibw.org/wiki/GoodRelations_Tutorial_ESWC2009



begin:vcard
fn:Martin Hepp
n:Hepp;Martin
org:Bundeswehr University Munich;E-Business and Web Science Research Group
adr:;;Werner-Heisenberg-Web 39;Neubiberg;;D-85577;Germany
email;internet:mh...@computer.org
tel;work:+49 89 6004 4217
tel;pager:skype: mfhepp
url:http://www.heppnetz.de
version:2.1
end:vcard

ANN: Conversion tool from BMEcat XML catalogs into GoodRelations RDF/XML

2009-07-23 Thread Martin Hepp (UniBW) 

Dear all:

I am glad to announce the availability of BMEcat2GoodRelations, an 
on-line conversion tool that creates GoodRelations product and offer 
data in RDF/XML from catalogs in the popular XML format BMEcat 2005.


With that tool, it is easy to turn available XML catalogs into data for
publication in the Web of Linked Data.

The tool is at

http://www.ebusiness-unibw.org/tools/bmecat2goodrelations/

The BMEcat specification is at

http://www.bmecat.org/English/index.asp

Thanks to Mark Mattern for his hard work on the tool!

Best wishes

Martin Hepp

--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  mh...@computer.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
 http://www.heppnetz.de/ (personal)
skype:   mfhepp
twitter: mfhepp

Check out the GoodRelations vocabulary for E-Commerce on the Web of Data!


Webcast:
http://www.heppnetz.de/projects/goodrelations/webcast/

Talk at the Semantic Technology Conference 2009:
"Semantic Web-based E-Commerce: The GoodRelations Ontology"
http://tinyurl.com/semtech-hepp

Tool for registering your business:
http://www.ebusiness-unibw.org/tools/goodrelations-annotator/

Overview article on Semantic Universe:
http://tinyurl.com/goodrelations-universe

Project page and resources for developers:
http://purl.org/goodrelations/





begin:vcard
fn:Martin Hepp
n:Hepp;Martin
org:Bundeswehr University Munich;E-Business and Web Science Research Group
adr:;;Werner-Heisenberg-Weg 39;Neubiberg;;D-85577;Germany
email;internet:mh...@computer.org
tel;work:+49 89 6004 4217
tel;pager:skype: mfhepp
url:http://www.heppnetz.de
version:2.1
end:vcard

Re: Alternatives to OWL for linked data?

2009-07-24 Thread Martin Hepp (UniBW) 

Did you look at SPIN?

http://spinrdf.org/

That should allow you do do a lot with data without leaving the now 
mainstream Semantic Web technology stack (as long as a small fragment of 
OWL is sufficient for you).


Best
Martin


Axel Rauschmayer wrote:
I'm currently reading Hendler's brilliant book "Semantic Web for the 
Working Ontologist". It really drove home the point that OWL is not a 
good fit when using RDF for *data* (names are generally not unique, 
open world assumption, ...).


But what is the alternative? For my applications, I have the following 
requirements:


- Properties: transitivity, inverse, sub-properties.
- Resources, classes: equivalence. For my purposes, equivalence is a 
way of implementing the topic merging in topic maps [1].

- Constraints for integrity checking.
- Schema declaration: partially overlaps with constraints, serves for 
documentation and for providing default values for properties.
- Computed property values: for example, one property value being the 
concatenation of two other property values etc.


The difficulty seems to me to find something universal that fulfills 
these requirements and is still easy to understand. Inference, when 
used for transitivity and equivalence, is simple, but when it comes to 
editing RDF, they can confound the user: Why can some triples be 
replaced, others not? Why do I have to replace the triples of a 
different instance if I want to replace the triples in my instance?


While it's not necessarily easier to understand for end users, I've 
always found Prolog easy to understand, where OWL is more of a challenge.


So what solutions are out there? I would prefer description logic 
programming to OWL. Does Prolog-like backward-chaining make sense for 
RDF? If so, how would it be combined with SPARQL; or would it replace 
it? Or maybe something frame-based?


Am I making sense? I would appreciate any pointers, hints and insights.

Axel

[1] http://www.topicmaps.org/xtm/index.html#desc-merging



--
--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  mh...@computer.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
http://www.heppnetz.de/ (personal)
skype:   mfhepp 
twitter: mfhepp


Check out GoodRelations for E-Commerce on the Web of Linked Data!
=

Webcast:
http://www.heppnetz.de/projects/goodrelations/webcast/

Recipe for Yahoo SearcMonkey:
http://tr.im/rAbN

Talk at the Semantic Technology Conference 2009: 
"Semantic Web-based E-Commerce: The GoodRelations Ontology"

http://tinyurl.com/semtech-hepp

Overview article on Semantic Universe:
http://tinyurl.com/goodrelations-universe

Project page:
http://purl.org/goodrelations/

Resources for developers:
http://www.ebusiness-unibw.org/wiki/GoodRelations

Tutorial materials:
CEC'09 2009 Tutorial: The Web of Data for E-Commerce: A Hands-on Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey 
http://tr.im/grcec09


begin:vcard
fn:Martin Hepp
n:Hepp;Martin
org:Bundeswehr University Munich;E-Business and Web Science Research Group
adr:;;Werner-Heisenberg-Web 39;Neubiberg;;D-85577;Germany
email;internet:mh...@computer.org
tel;work:+49 89 6004 4217
tel;pager:skype: mfhepp
url:http://www.heppnetz.de
version:2.1
end:vcard

Re: "Two-way Search" demo anyone?

2009-07-28 Thread Martin Hepp (UniBW) 
Side note: I just put a recipe on-line that shows how the very same 
GoodRelations elements used for describing offers can be used for 
describing demand with the gr:seeks property.


http://tr.im/grseeks

BTW, you can combine that with most other recipes from

http://tr.im/cookbook

For instance, you could attach an image of a car wreck using 
foaf:depiction and ask for offers to repair (or to dispose ;-) ) that car.



Danny Ayers wrote:

2009/7/28 Kingsley Idehen :

  

Please have a look at:
1. http://lod.openlinksw.com - LOD Cloud Cache (5 Billion+ triples from the
LOD Cloud Data Set collection plus others)
2.
http://virtuoso.openlinksw.com/dataspace/dav/wiki/Main/VirtuosoFacetsWebService
-- Service API
I've also posted comments to his blog post at:
http://www.scripting.com/stories/2009/07/26/twowaySearch.html?dsq=13437902#comment-13437902



Right, I agree this is the key bit of 'Part 2 of the solution'
(looser, Google-like results may also be desirable, but that would be
icing).

Part 1 is a little more than front end though, IMHO. You'd also need to :

* snag the searcher's profile
* generate filter clauses based on that

(in practice the filtering would probably be better the other way
around, i.e. reduce search space using profile facts for triple
matching, then use something like FILTER regex(?object, ?searchterms,
"i") )

Having said that a bit of experimentation is no doubt needed to get a
good interaction between the sloppy text bits and the explicit profile
stuff - e.g. if I searched for "airports" (and my profile contained my
geo location), behind the scenes you'd probably want "airports" to map
to ?s a x:Airport  - something your Entity Search tool presumably can
do (alas it keeps timing out for me right now).

Cheers,
Danny.

  


--
--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  mh...@computer.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
http://www.heppnetz.de/ (personal)
skype:   mfhepp 
twitter: mfhepp


Check out GoodRelations for E-Commerce on the Web of Linked Data!
=

Webcast:
http://www.heppnetz.de/projects/goodrelations/webcast/

Recipe for Yahoo SearcMonkey:
http://tr.im/rAbN

Talk at the Semantic Technology Conference 2009: 
"Semantic Web-based E-Commerce: The GoodRelations Ontology"

http://tinyurl.com/semtech-hepp

Overview article on Semantic Universe:
http://tinyurl.com/goodrelations-universe

Project page:
http://purl.org/goodrelations/

Resources for developers:
http://www.ebusiness-unibw.org/wiki/GoodRelations

Tutorial materials:
CEC'09 2009 Tutorial: The Web of Data for E-Commerce: A Hands-on Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey 
http://tr.im/grcec09


begin:vcard
fn:Martin Hepp
n:Hepp;Martin
org:Bundeswehr University Munich;E-Business and Web Science Research Group
adr:;;Werner-Heisenberg-Web 39;Neubiberg;;D-85577;Germany
email;internet:mh...@computer.org
tel;work:+49 89 6004 4217
tel;pager:skype: mfhepp
url:http://www.heppnetz.de
version:2.1
end:vcard

ANN: RDF2RDFa: Turning RDF/XML into Snippets for Copy-and-Paste

2009-08-13 Thread Martin Hepp (UniBW) 

Dear all:

We are proud to announce the first prototype of the RDF2RDFa tool, which
aims at simplifying the publication of RDF for Web developers.

This tool converts arbitrary RDF/XML documents into a block of div/span
elements without human-readable content. Such a block of markup can be
simply pasted before the closing "" tag of an XHTML Web resource.
This allows embedding even sophisticated RDF models into Web pages (even
complex OWL models etc.).

The tool is available at

http://www.ebusiness-unibw.org/tools/rdf2rdfa/

For background information, please see our Technical Report at

http://www.heppnetz.de/files/RDF2RDFa-TR.pdf


Acknowledgments:
This service is provided by Roberto García, from the GRIHO
Human-Computer Interaction and Data Integration Research Group at
Universitat de Lleida and by Martin Hepp and Andreas Radinger from the
E-Business and Web Science Research Group at Bundeswehr University Munich.

We would like to thank Mark Birbeck, Kavi Goel, Othar Hansson, Kingsley
Idehen, and everybody who contributed to the original discussion on
semantic-...@w3.org, for useful feedback on the initial idea, and
Andreas Wechselberger for testing our snippets in MediaWiki.


Best wishes

Martin

--

martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  mh...@computer.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
  http://www.heppnetz.de/ (personal)
skype:   mfhepp
twitter: mfhepp

Check out GoodRelations for E-Commerce on the Web of Linked Data!
=

Webcast:
http://www.heppnetz.de/projects/goodrelations/webcast/

Recipe for Yahoo SearcMonkey:
http://tr.im/rAbN

Talk at the Semantic Technology Conference 2009:
"Semantic Web-based E-Commerce: The GoodRelations Ontology"
http://tinyurl.com/semtech-hepp

Overview article on Semantic Universe:
http://tinyurl.com/goodrelations-universe

Project page:
http://purl.org/goodrelations/

Resources for developers:
http://www.ebusiness-unibw.org/wiki/GoodRelations

Tutorial materials:
CEC'09 2009 Tutorial: The Web of Data for E-Commerce: A Hands-on
Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey
http://tr.im/grcec09



--
--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  mh...@computer.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
  http://www.heppnetz.de/ (personal)
skype:   mfhepp
twitter: mfhepp

Check out GoodRelations for E-Commerce on the Web of Linked Data!
=

Webcast:
http://www.heppnetz.de/projects/goodrelations/webcast/

Recipe for Yahoo SearcMonkey:
http://tr.im/rAbN

Talk at the Semantic Technology Conference 2009:
"Semantic Web-based E-Commerce: The GoodRelations Ontology"
http://tinyurl.com/semtech-hepp

Overview article on Semantic Universe:
http://tinyurl.com/goodrelations-universe

Project page:
http://purl.org/goodrelations/

Resources for developers:
http://www.ebusiness-unibw.org/wiki/GoodRelations

Tutorial materials:
CEC'09 2009 Tutorial: The Web of Data for E-Commerce: A Hands-on
Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey
http://tr.im/grcec09

begin:vcard
fn:Martin Hepp
n:Hepp;Martin
org:Bundeswehr University Munich;E-Business and Web Science Research Group
adr:;;Werner-Heisenberg-Weg 39;Neubiberg;;D-85577;Germany
email;internet:mh...@computer.org
tel;work:+49 89 6004 4217
tel;pager:skype: mfhepp
url:http://www.heppnetz.de
version:2.1
end:vcard

Re: ProductDB

2009-08-14 Thread Martin Hepp (UniBW) 

Hi Juan:
GoodRelations already provides support for wish lists:

See

http://www.ebusiness-unibw.org/wiki/GoodRelationsSeeks

No need to reivent it ;-)

Best

Martin


Juan Sequeda wrote:

Congrats Ian and all! Great contribution!

Toby, how about a wish list vocabulary? Would be cool if it gets done at
VoCamp.

Juan Sequeda, Ph.D Student
Dept. of Computer Sciences
The University of Texas at Austin
www.juansequeda.com
www.semanticwebaustin.org


On Fri, Aug 14, 2009 at 11:47 AM, Toby Inkster  wrote:

  

On Fri, 2009-08-14 at 10:15 +0100, Ian Davis wrote:


I'm pleased to announce the first release of ProductDB:
http://productdb.org/
  

Nice. This, I think, would be very useful in conjunction with a few
terms to link products to people and organisations.

Firstly: where are products available?

    :availableFrom <#someShop> .

(GoodRelations probably has a term that can be used here.)

Secondly: what do I have?

   <#me> :hasOneOf  .

Or maybe:

   <#me> :has [ :isOneOf  ] .

Which is less simple, but allows me to state additional information
about the particular phone I have.

Thirdly: what do I want?

   <#me> :wantsOneOf  .

The "firstly" and "thirdly" data combine nicely to allow FOAF files to
include "Wishlists" similar to the Wishlist feature on Amazon.com and
similar sites.

Does anyone know of any vocabs that provide terms like these? If not,
shall I add to the VoCampBristol2009 todo list?

--
Toby A Inkster








  


--
--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  mh...@computer.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
http://www.heppnetz.de/ (personal)
skype:   mfhepp 
twitter: mfhepp


Check out GoodRelations for E-Commerce on the Web of Linked Data!
=

Webcast:
http://www.heppnetz.de/projects/goodrelations/webcast/

Recipe for Yahoo SearcMonkey:
http://tr.im/rAbN

Talk at the Semantic Technology Conference 2009: 
"Semantic Web-based E-Commerce: The GoodRelations Ontology"

http://tinyurl.com/semtech-hepp

Overview article on Semantic Universe:
http://tinyurl.com/goodrelations-universe

Project page:
http://purl.org/goodrelations/

Resources for developers:
http://www.ebusiness-unibw.org/wiki/GoodRelations

Tutorial materials:
CEC'09 2009 Tutorial: The Web of Data for E-Commerce: A Hands-on Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey 
http://tr.im/grcec09


begin:vcard
fn:Martin Hepp
n:Hepp;Martin
org:Bundeswehr University Munich;E-Business and Web Science Research Group
adr:;;Werner-Heisenberg-Web 39;Neubiberg;;D-85577;Germany
email;internet:mh...@computer.org
tel;work:+49 89 6004 4217
tel;pager:skype: mfhepp
url:http://www.heppnetz.de
version:2.1
end:vcard

Re: ProductDB

2009-08-14 Thread Martin Hepp (UniBW) 
Note that the GoodRelations "seeks" patterns allows using the full 
amount of details and the same vocabulary for specifying wish lists you 
can say that you are interested in TV sets with at least 11 inches of 
screen size etc. So it is not only a simple wish list, but allows using 
all features of GoodRelations for the buy side - with the simple 
difference of using gr:seeks instead of gr:offers between the 
gr:BusinessEntity and the gr:Offering.


http://www.ebusiness-unibw.org/wiki/GoodRelationsSeeks

Alexandre Passant wrote:

Hi Juan,


On 14 Aug 2009, at 13:50, Juan Sequeda wrote:


Congrats Ian and all! Great contribution!

Toby, how about a wish list vocabulary? Would be cool if it gets done 
at VoCamp.


A WishList class has been added in the SIOC Types module recently, it 
can certainly be used as a base for this kind of vocab.


Alex.




Juan Sequeda, Ph.D Student
Dept. of Computer Sciences
The University of Texas at Austin
www.juansequeda.com
www.semanticwebaustin.org


On Fri, Aug 14, 2009 at 11:47 AM, Toby Inkster  wrote:
On Fri, 2009-08-14 at 10:15 +0100, Ian Davis wrote:
> I'm pleased to announce the first release of ProductDB:
> http://productdb.org/

Nice. This, I think, would be very useful in conjunction with a few
terms to link products to people and organisations.

Firstly: where are products available?

    :availableFrom <#someShop> .

(GoodRelations probably has a term that can be used here.)

Secondly: what do I have?

   <#me> :hasOneOf  .

Or maybe:

   <#me> :has [ :isOneOf  ] .

Which is less simple, but allows me to state additional information
about the particular phone I have.

Thirdly: what do I want?

   <#me> :wantsOneOf  .

The "firstly" and "thirdly" data combine nicely to allow FOAF files to
include "Wishlists" similar to the Wishlist feature on Amazon.com and
similar sites.

Does anyone know of any vocabs that provide terms like these? If not,
shall I add to the VoCampBristol2009 todo list?

--
Toby A Inkster







--
Dr. Alexandre Passant
Digital Enterprise Research Institute
National University of Ireland, Galway
:me owl:sameAs  .










--
--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  mh...@computer.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
http://www.heppnetz.de/ (personal)
skype:   mfhepp 
twitter: mfhepp


Check out GoodRelations for E-Commerce on the Web of Linked Data!
=

Webcast:
http://www.heppnetz.de/projects/goodrelations/webcast/

Recipe for Yahoo SearcMonkey:
http://tr.im/rAbN

Talk at the Semantic Technology Conference 2009: 
"Semantic Web-based E-Commerce: The GoodRelations Ontology"

http://tinyurl.com/semtech-hepp

Overview article on Semantic Universe:
http://tinyurl.com/goodrelations-universe

Project page:
http://purl.org/goodrelations/

Resources for developers:
http://www.ebusiness-unibw.org/wiki/GoodRelations

Tutorial materials:
CEC'09 2009 Tutorial: The Web of Data for E-Commerce: A Hands-on Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey 
http://tr.im/grcec09


begin:vcard
fn:Martin Hepp
n:Hepp;Martin
org:Bundeswehr University Munich;E-Business and Web Science Research Group
adr:;;Werner-Heisenberg-Web 39;Neubiberg;;D-85577;Germany
email;internet:mh...@computer.org
tel;work:+49 89 6004 4217
tel;pager:skype: mfhepp
url:http://www.heppnetz.de
version:2.1
end:vcard

ANN: BestBuy.com starts publishing full catalog as RDF/XML using GoodRelations - 27 million triples

2009-08-31 Thread Martin Hepp (UniBW) 

Dear all:

BestBuy.com has just started to serve a complete RDF/XML dump of their
products and price information to the Web of Linked Data, using the
GoodRelations vocabulary for e-commerce. The data dump is updated on a
daily basis and contains detailed descriptions for roughly 450,000
individual items. With about 60 triples per item, this totals to about
27 million RDF triples.

Semantic Sitemap: http://products.semweb.bestbuy.com/sitemap.xml

Examples:
a) Software:
http://products.semweb.bestbuy.com/products/8182593/semanticweb.rdf

b) "Hardgoods":
http://products.semweb.bestbuy.com/products/8794691/semanticweb.rdf

c) Movies:
http://products.semweb.bestbuy.com/products/7590289/semanticweb.rdf

d) Games:
http://products.semweb.bestbuy.com/products/9223752/semanticweb.rdf

Other than many existing large RDF transcripts, the data very dynamic,
holding the daily prices for all items.
According to Wikipedia, BestBuy.com is the largest specialty retailer of
consumer electronics in the United States accounting for 19% of the market.

It is likely the first Fortune 500 company to start publishing offer
details on the Web of Linked Data.

Congratulations to Jay Myers from BestBuy.com for this excellent
contribution, and a big thanks to Andreas Radinger and Alex Stolz for
their support,

Best wishes

Martin Hepp

--
--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  mh...@computer.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
 http://www.heppnetz.de/ (personal)
skype:   mfhepp
twitter: mfhepp

Check out GoodRelations for E-Commerce on the Web of Linked Data!
=

Webcast:
http://www.heppnetz.de/projects/goodrelations/webcast/

Recipe for Yahoo SearcMonkey:
http://tr.im/rAbN

Talk at the Semantic Technology Conference 2009:
"Semantic Web-based E-Commerce: The GoodRelations Ontology"
http://tinyurl.com/semtech-hepp

Overview article on Semantic Universe:
http://tinyurl.com/goodrelations-universe

Project page:
http://purl.org/goodrelations/

Resources for developers:
http://www.ebusiness-unibw.org/wiki/GoodRelations

Tutorial materials:
CEC'09 2009 Tutorial: The Web of Data for E-Commerce: A Hands-on 
Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey

http://tr.im/grcec09
<>

Re: ANN: BestBuy.com starts publishing full catalog as RDF/XML using GoodRelations - 27 million triples

2009-08-31 Thread Martin Hepp (UniBW) 

Hi Melvin,

Melvin Carvalho wrote:

Fantastic news.

Have you had a chance to compare the data from bestbuy to that of
productdb at all?

  
Not yet, but am looking at productDB. However, note that BestBuy is 
releasing its own operational product database as RDF/XML. You may be 
able to link that with other data assets, e.g. via links between 
instances of gr:ProductsOrServiceModel or 
gr:ProductsOrServiceSomeInstancesPlaceholder that have the same literal 
value for gr:hasEAN_UCC-13.


Martin


--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  mh...@computer.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
http://www.heppnetz.de/ (personal)
skype:   mfhepp 
twitter: mfhepp


Check out GoodRelations for E-Commerce on the Web of Linked Data!
=

Webcast:
http://www.heppnetz.de/projects/goodrelations/webcast/

Recipe for Yahoo SearcMonkey:
http://tr.im/rAbN

Talk at the Semantic Technology Conference 2009: 
"Semantic Web-based E-Commerce: The GoodRelations Ontology"

http://tinyurl.com/semtech-hepp

Overview article on Semantic Universe:
http://tinyurl.com/goodrelations-universe

Project page:
http://purl.org/goodrelations/

Resources for developers:
http://www.ebusiness-unibw.org/wiki/GoodRelations

Tutorial materials:
CEC'09 2009 Tutorial: The Web of Data for E-Commerce: A Hands-on Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey 
http://tr.im/grcec09


<>

Re: ANN: BestBuy.com starts publishing full catalog as RDF/XML using GoodRelations - 27 million triples

2009-08-31 Thread Martin Hepp (UniBW) 

Hi Daniel:

Daniel Schwabe wrote:
That is indeed very good and auspicious news. Are there any SPARQL endpoints 
available?


  


The data is available as RDF/XML files from BestBuy.com, but it will 
soon be regularly included in the Linked Open Commerce dataspace at


http://loc.openlinksw.com/sparql

which itself provides an SPARQL endpoint.

Martin

--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  mh...@computer.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
http://www.heppnetz.de/ (personal)
skype:   mfhepp 
twitter: mfhepp


Check out GoodRelations for E-Commerce on the Web of Linked Data!
=

Webcast:
http://www.heppnetz.de/projects/goodrelations/webcast/

Recipe for Yahoo SearcMonkey:
http://tr.im/rAbN

Talk at the Semantic Technology Conference 2009: 
"Semantic Web-based E-Commerce: The GoodRelations Ontology"

http://tinyurl.com/semtech-hepp

Overview article on Semantic Universe:
http://tinyurl.com/goodrelations-universe

Project page:
http://purl.org/goodrelations/

Resources for developers:
http://www.ebusiness-unibw.org/wiki/GoodRelations

Tutorial materials:
CEC'09 2009 Tutorial: The Web of Data for E-Commerce: A Hands-on Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey 
http://tr.im/grcec09


<>

Re: ANN: BestBuy.com starts publishing full catalog as RDF/XML using GoodRelations - 27 million triples

2009-09-01 Thread Martin Hepp (UniBW) 

Dear Peter:

Peter Ansell wrote:

I would hardly call it "Linked Data", as they don't use resolvable
URI's. All of the URI's seem to branch off
http://products.semweb.bestbuy.com/semanticweb.rdf , and that URI is
not resolvable to anything. RDF encoded information is good though,
even if it does have to be trawled using a Sitemap.

  

All individual item URIs, e.g.

http://products.semweb.bestbuy.com/products/8182593/semanticweb.rdf

should be dereferenceable and return a RDF/XML representation with the 
proper media type.


On my machine, it works with Tabulator.

Surprisingly,

curl -I -H "Accept: application/rdf+xml" 
http://products.semweb.bestbuy.com/products/8182593/semanticweb.rdf


and

curl -I -H 
http://products.semweb.bestbuy.com/products/8182593/semanticweb.rdf


return a 405 error:

HTTP/1.1 405 Method Not Allowed
Content-Type: text/html; charset=utf-8
Cache-Control: no-cache
Expires: Fri, 01 Jan 1990 00:00:00 GMT
Date: Tue, 01 Sep 2009 07:21:48 GMT
Server: Google Frontend
Content-Length: 0
Connection: keep-alive

I will check with BestBuy on why that is so,

Now, as for human-readable content: Each RDF/XML representation links to 
the proper human-readable representation via rdfs:seeAlso, e.g. to


http://www.bestbuy.com/site/olspage.jsp?skuId=8182593&type=product&id=1164154035835&cmp=RMX&ky=1whYTIhnZ0ydleik4tkW4Z7Fn1kPFrBgb

I fail to see how and rdfs:seeAlso is worse than a 303 redirect - which 
is hard to implement and maintain on a large-scale corporate Web site 
(see recent .htaccess discussions on this list).


Currently, the human-readable pages, e.g.

http://www.bestbuy.com/site/olspage.jsp?skuId=8182593&type=product&id=1164154035835&cmp=RMX&ky=1whYTIhnZ0ydleik4tkW4Z7Fn1kPFrBgb

don't have a META element in their header that would link to the RDF/XML 
representation. That would be an improvement. It should actually be 
sufficient to insert


type="application/rdf+xml" 
href="http://linkeddata.uriburner.com/about/id/"


Also, it should be easy for an intelligent agent or tools like URIburner 
to search for graphs that are related to a given human-readable resource.


Simply query e.g. the LOD/LOC dataspace at

http://loc.openlinksw.com/sparql

for all graphs that contain at least one triple of the form

* rdfs:seeAlso 

Also, note that you can easily link the BestBuy data with other 
resources on the basis of equivalent gr:hasEAN_UCC-13 values.


For example, you can search for the best camcorder for your needs using 
the product model data at


http://rdf4ecommerce.esolda.com/camcorder/ (that is not proper linked 
data yet, but still useful)


and then search for suitable offers on the basis of the EAN/UPC code of 
that model.


Such will show up the BestBuy offers.


Best
Martin

Cheers,

Peter

  


--
--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  mh...@computer.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
http://www.heppnetz.de/ (personal)
skype:   mfhepp 
twitter: mfhepp


Check out GoodRelations for E-Commerce on the Web of Linked Data!
=

Webcast:
http://www.heppnetz.de/projects/goodrelations/webcast/

Recipe for Yahoo SearcMonkey:
http://tr.im/rAbN

Talk at the Semantic Technology Conference 2009: 
"Semantic Web-based E-Commerce: The GoodRelations Ontology"

http://tinyurl.com/semtech-hepp

Overview article on Semantic Universe:
http://tinyurl.com/goodrelations-universe

Project page:
http://purl.org/goodrelations/

Resources for developers:
http://www.ebusiness-unibw.org/wiki/GoodRelations

Tutorial materials:
CEC'09 2009 Tutorial: The Web of Data for E-Commerce: A Hands-on Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey 
http://tr.im/grcec09


<>

Re: ANN: BestBuy.com starts publishing full catalog as RDF/XML using GoodRelations - 27 million triples

2009-09-01 Thread Martin Hepp (UniBW) 

Hi Giovanni:

Giovanni Tummarello wrote:

Hi Martin, all,

 the sitemap exposed is not a Semantic Sitemap

Semantic Sitemap: http://products.semweb.bestbuy.com/sitemap.xml

but simply gives the location of the dumps.

  

As far as I see, the sitemap at

http://products.semweb.bestbuy.com/sitemap.xml

gives the locations of the compressed semantic sitemaps:



http://www.sitemaps.org/schemas/sitemap/0.9";>
   
   http://products.semweb.bestbuy.com/sitemap1.xml.gz
   2009-07-31T18:23:17+00:00
   


Each one of those seems to be a proper semantic sitemap
E.g.

http://products.semweb.bestbuy.com/sitemap1.xml.gz

-->


http://www.sitemaps.org/schemas/sitemap/0.9"; 
xmlns:sc="http://sw.deri.org/2007/07/sitemapextension/scschema.xsd";>

   
   Sitemap data for Best Buy Co., Inc., products. 
Data based on http://purl.org/goodrelations/

   http://products.semweb.bestbuy.com/
   slicing="subject-object">http://products.semweb.bestbuy.com/
   
http://products.semweb.bestbuy.com/products/9380001/semanticweb.rdf
   
http://products.semweb.bestbuy.com/products/43900/semanticweb.rdf
   
http://products.semweb.bestbuy.com/products/48521/semanticweb.rdf
   
http://products.semweb.bestbuy.com/products/48530/semanticweb.rdf
   
http://products.semweb.bestbuy.com/products/54256/semanticweb.rdf





in theory if this information is exposed as linked data then one would
like to have a semantic sitemap exposed, 
As said - I understand BestBuy is using the main sitemap to bundle the 
individual semantic sitemaps. Note that they are dealing with 450,000 
documents. A single sitemap file would be pretty large.



which includes other details
e.g. a sparql endpoint some information on the datasets etc. [1]

  
There is, to my knowledge, no SPARQL endpoint offered by BestBuy.com, 
but you can soon simply use the Linked Open Commerce dataspace at


http://loc.openlinksw.com/sparql

This will contain a current copy of the bestbuy graphs.
has this been considered and decided against? 
As far as I know, the combination of a sitemap and 23 semantic sitemaps 
was a pragmatic decision. If it causes major problems, Jay Myers from 
BestBuy will for sure be open to improvements for suggestions.

should we just live with
it and fit sindice to do some guesswork and process those instead? (i
am not necessarely against this last solution really.. )
  

You simply have to fetch and un-gzip the 23 semantic sitemaps at

http://products.semweb.bestbuy.com/sitemap.xml.gz

with  being a number from 1 to 23.

Note that

http://products.semweb.bestbuy.com/sitemap5.xml.gz

seems to have a syntactical problem (fix is already requested).
In other words are you suggesting the use of semantic sitemaps 
We usually recommend using semantic sitemaps. But actually I think that 
a consolidated dataspace like the LOC will become more important in the 
future, because it creates to much overhead for each agent and 
application to crawl and consolidate the whole Web of Linked Data on 
his/her own.



or
should we just come to term to this? The disavantage is that linked
data browser that wants to use an index to find information will be
able to do so less reliably (hope that our guesswork works)
  
As said - I understand (without a thorough analyis, though), that 
BestBuy's usage of a single sitemap and multiple semantic sitemaps is okay.

Giovanni

[1] http://sw.deri.org/2007/07/sitemapextension/

On Mon, Aug 31, 2009 at 8:08 PM, Martin Hepp
(UniBW) wrote:
  

Dear all:

BestBuy.com has just started to serve a complete RDF/XML dump of their
products and price information to the Web of Linked Data, using the
GoodRelations vocabulary for e-commerce. The data dump is updated on a
daily basis and contains detailed descriptions for roughly 450,000
individual items. With about 60 triples per item, this totals to about
27 million RDF triples.

Semantic Sitemap: http://products.semweb.bestbuy.com/sitemap.xml

Examples:
a) Software:
http://products.semweb.bestbuy.com/products/8182593/semanticweb.rdf

b) "Hardgoods":
http://products.semweb.bestbuy.com/products/8794691/semanticweb.rdf

c) Movies:
http://products.semweb.bestbuy.com/products/7590289/semanticweb.rdf

d) Games:
http://products.semweb.bestbuy.com/products/9223752/semanticweb.rdf

Other than many existing large RDF transcripts, the data very dynamic,
holding the daily prices for all items.
According to Wikipedia, BestBuy.com is the largest specialty retailer of
consumer electronics in the United States accounting for 19% of the market.

It is likely the first Fortune 500 company to start publishing offer
details on the Web of Linked Data.

Congratulations to Jay Myers from BestBuy.com for this excellent
contribution, and a big thanks to Andreas Radinger and Alex Stolz for
their support,

Best wishes

Martin Hepp

--
--
martin hepp
e-business & web scienc

Re: ANN: BestBuy.com starts publishing full catalog as RDF/XML using GoodRelations - 27 million triples

2009-09-01 Thread Martin Hepp (UniBW) 

Hi Leigh,

Thanks for your feedback.

rdfs:seeAlso is defined as a property that "specifies a resource that 
might provide additional information about the subject resource."


So I would say using it to link from a pure data element (e.g. a price 
specification node, a warranty promise, a product, or an offer) to the 
Web page that describes all of them in one page is in compliance with 
the RDFS spec. (Note that this also allows pointers from any such 
element to hash URIs in a human-readable document - with that, users 
could directly jump e.g. to the warranty section of the page.)


Your suggestion of using

http://xmlns.com/foaf/spec/#term_isPrimaryTopicOf

instead is a viable option, but I decided against it as the default 
property for two reasons:


1. First, I did not want to force people to import and use foaf only for 
this very basic link, in particular as long as a suitable property from 
the core RDFS vocabulary is available.


2. The status of this property is "testing" only.

But is perfectly fine for anybody to attach additional

term_isPrimaryTopicOf

properties to any conceptual element in GoodRelations data.

Martin


Hi,

2009/9/1 Martin Hepp (UniBW) 
  

Now, as for human-readable content: Each RDF/XML representation links to the 
proper human-readable representation via rdfs:seeAlso, e.g. to



Setting aside the discussion of 303, I'm not sure that rdfs:seeAlso is
the best property to use here. IMHO, rdfs:seeAlso works best for the
"RDF hyperlinking" that FOAF encouraged. I still tend to use it in
that form.

Typically when I'm pointing from RDF to a human-readable page then I
usually use one of the foaf "topic" properties. foaf:isPrimaryTopic of
would seem to fit here:

http://xmlns.com/foaf/spec/#term_isPrimaryTopicOf

I also think its more useful for agents that are looking for
human-readable pages.

  



Cheers,

L.
  
Leigh Dodds

Programme Manager, Talis Platform
Talis
leigh.do...@talis.com
http://www.talis.com

  


--
--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  mh...@computer.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
http://www.heppnetz.de/ (personal)
skype:   mfhepp 
twitter: mfhepp


Check out GoodRelations for E-Commerce on the Web of Linked Data!
=

Webcast:
http://www.heppnetz.de/projects/goodrelations/webcast/

Recipe for Yahoo SearcMonkey:
http://tr.im/rAbN

Talk at the Semantic Technology Conference 2009: 
"Semantic Web-based E-Commerce: The GoodRelations Ontology"

http://tinyurl.com/semtech-hepp

Overview article on Semantic Universe:
http://tinyurl.com/goodrelations-universe

Project page:
http://purl.org/goodrelations/

Resources for developers:
http://www.ebusiness-unibw.org/wiki/GoodRelations

Tutorial materials:
CEC'09 2009 Tutorial: The Web of Data for E-Commerce: A Hands-on Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey 
http://tr.im/grcec09


<>

IT Conversations Podcast Features GoodRelations and RDFa

2009-09-18 Thread Martin Hepp (UniBW) 

Dear all:

IT Conversations, the longest-running podcast on the planet, featured
the GoodRelations vocabulary and RDFa.

In a recent episode of the "Interviews With Innovators" track, Jon Udell
interviewed Kingsley Idehen on "RDFa and Structured Data".

For the podcast, see

http://itc.conversationsnetwork.org/shows/detail4233.html

For a related blog post by Jon, see

http://blog.jonudell.net/2009/09/09/talking-with-kingsley-idehen-about-mastering-your-own-search-index/

For Kingsley's blog, see

http://www.openlinksw.com/blog/~kidehen/

Best wishes

Martin Hepp

--
--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  mh...@computer.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
 http://www.heppnetz.de/ (personal)
skype:   mfhepp
twitter: mfhepp

Check out GoodRelations for E-Commerce on the Web of Linked Data!
=

Webcast:
http://www.heppnetz.de/projects/goodrelations/webcast/

Recipe for Yahoo SearcMonkey:
http://tr.im/rAbN

Talk at the Semantic Technology Conference 2009:
"Semantic Web-based E-Commerce: The GoodRelations Ontology"
http://tinyurl.com/semtech-hepp

Overview article on Semantic Universe:
http://tinyurl.com/goodrelations-universe

Project page:
http://purl.org/goodrelations/

Resources for developers:
http://www.ebusiness-unibw.org/wiki/GoodRelations

Tutorial materials:
CEC'09 2009 Tutorial: The Web of Data for E-Commerce: A Hands-on 
Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey

http://tr.im/grcec09
<>

Recipe for Embedding RDFa in ANY MediaWiki Wiki

2009-09-19 Thread Martin Hepp (UniBW) 

Dear all:

Based on a patch by Toby Inkster, we developed a recipe for publishing
GoodRelations-compliant rich meta-data in RDFa for any business using  a
*standard* MediaWiki wiki.

The recipe shows how any business with access to a MediaWiki instance 
can publish detailed descriptions of its opening hours, payment options,

products, and prices.

The recipe is at

http://www.ebusiness-unibw.org/wiki/RDFaInMediaWiki

The same pattern can of course be used with any other vocabulary.

Since MediaWiki by default uses "cool" URIs for its pages, the resulting 
hash URIs for conceptual elements are surprisingly good-looking ;-)


Best wishes

Martin Hepp and Andreas Wechselberger

--
--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  mh...@computer.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
 http://www.heppnetz.de/ (personal)
skype:   mfhepp
twitter: mfhepp

Check out GoodRelations for E-Commerce on the Web of Linked Data!
=

Webcast:
http://www.heppnetz.de/projects/goodrelations/webcast/

Recipe for Yahoo SearcMonkey:
http://tr.im/rAbN

Talk at the Semantic Technology Conference 2009:
"Semantic Web-based E-Commerce: The GoodRelations Ontology"
http://tinyurl.com/semtech-hepp

Overview article on Semantic Universe:
http://tinyurl.com/goodrelations-universe

Project page:
http://purl.org/goodrelations/

Resources for developers:
http://www.ebusiness-unibw.org/wiki/GoodRelations

Tutorial materials:
CEC'09 2009 Tutorial: The Web of Data for E-Commerce: A Hands-on 
Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey

http://tr.im/grcec09

Re: Yahoo RDFa enahced results example

2009-09-21 Thread Martin Hepp (UniBW) 

Hi Juan, Eugenio:


Where can we see search results in Yahoo that come from the RDF of Bestbuy
and Goodrelations?


First, note that currently, only the standard Yahoo search results are 
by default enhanced by structured meta-data, i.e., you do not appear in 
the "local business" directory by Yahoo automatically. I spoke with 
Yahoo about that recently and they said that inclusion in those special 
Yahoo pages would be a future option, assumed that the amount of data 
out there is of sufficient quantity and quality.


You can check the appearance of a particular page using

   * wwwurl:

as the search parameter at http://www.yahoo.com.

For example,

   * wwwurl:http://www.heppnetz.de/searchmonkey/company.html
   * wwwurl:http://www.heppnetz.de/searchmonkey/product.html

If you try that example, you already see the reviews meta-data displayed 
correctly, but the price and other details are missing. The reason is 
that the SearchMonkey index is not yet up-to-date; we fixed some bugs in 
the mark-up, but the crawler has not yet come back.


One problem with the SearchMonkey index and the underlying crawler is 
that, depending on the popularity of you page, the update cycles can be 
in the order of magnitude of weeks or even months.


If you want to check what meta-data is already included in the Yahoo! 
SearchMonkey index, you can use the tool at


http://goodrelations-search.appspot.com/

It is basically a variant of the Yahoo! search service that displays all 
meta-data that is found in the Yahoo! index.


Note: At the time of writing, there are some problems in Yahoo's RDF 
export, so even though my page has been crawled by Yahoo!, the 
SeachMonkey index does not return fully correct RDF. Yahoo is aware of 
the bug.


For links etc., see

http://www.ebusiness-unibw.org/wiki/GoodRelations_and_Yahoo_SearchMonkey#Congratulations.21

As for BestBuy: BestBuy is currently only exposing RDF/XML, while Yahoo 
crawls only RDFa. So the BestBuy data is not yet in the SearchMonkey 
index (but in most other SemWeb indices).

There are two solutions to that:

a) Convert the RDF/XML into the Yahoo RDF2DataRSS tool at

http://www.ebusiness-unibw.org/tools/rdf2datarss/

and feed that into Yahoo using OPML.

b) Create RDFa snippets using our toll RDF2RDFa at

http://www.ebusiness-unibw.org/tools/rdf2rdfa

ans insert that into original pages or a second XHTML presence of the 
catalog.


We are in contact with BestBuy regarding that as a major showcase.

Best

Martin



Juan Sequeda wrote:

Good question.

Where can we see search results in Yahoo that come from the RDF of Bestbuy
and Goodrelations?

Juan Sequeda, Ph.D Student
Dept. of Computer Sciences
The University of Texas at Austin
www.juansequeda.com
www.semanticwebaustin.org


On Sun, Sep 20, 2009 at 12:50 PM, Eugenio Tacchini wrote:

  

Hi all,
maybe I'm a bit OT, anyway: could someone give me a good example of yahoo
local business RDFa-enanched result?

All the examples I read so far have the same "problem": the entity is
included in local.yahoo.com too. Example: if I search for "gary danko san
francisco" I'll get a nice structured infobox about the Gary Danko
restaurant with overview, reviews, map, pics and so on; but that's because
that restaurant is also available in local.yahoo.com (and maybe added
manually) and not because 
http://www.garydanko.com/ provided RDFa, am I right?
Maybe other sites provide RDFa for that restaurant and they are the source
for local.yahoo.com? If yes, which sites for this example?

Thanks!

Cheers,

E.







  


--
--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  mh...@computer.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
http://www.heppnetz.de/ (personal)
skype:   mfhepp 
twitter: mfhepp


Check out GoodRelations for E-Commerce on the Web of Linked Data!
=

Webcast:
http://www.heppnetz.de/projects/goodrelations/webcast/

Recipe for Yahoo SearcMonkey:
http://tr.im/rAbN

Talk at the Semantic Technology Conference 2009: 
"Semantic Web-based E-Commerce: The GoodRelations Ontology"

http://tinyurl.com/semtech-hepp

Overview article on Semantic Universe:
http://tinyurl.com/goodrelations-universe

Project page:
http://purl.org/goodrelations/

Resources for developers:
http://www.ebusiness-unibw.org/wiki/GoodRelations

Tutorial materials:
CEC'09 2009 Tutorial: The Web of Data for E-Commerce: A Hands-on Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey 
http://tr.im/grcec09


<>

Re: Yahoo RDFa enahced results example

2009-09-25 Thread Martin Hepp (UniBW) 

Dear Juan:

Juan Sequeda wrote:

So I guess there isn't an answer to Eugenio's question then.


The answer is: I don't know a URI that, as of today, already appears in 
Yahoo with more details based on RDFa mark-up, but that will change very 
soon.

If Peter has one, I would be happy to kearn of it, of course.

Note that

-  is was only something like five weeks ago that Yahoo officially 
activated the enhanced display functionality and
- that the current re-crawling/update cycles at all major search engines 
are in the order of magnitude of 2 - 8 weeks, depending on your page 
popularity.


Since most early adopters are not among the pages with the highest 
page-rank, it is quite natural that it will take a few weeks or months 
to see the real impact of this innovation.


I personally think that

http://www.heppnetz.de/searchmonkey/product.html

will be among the first pages to showcase the effect, because it was one 
of the first pages with proper mark-up that went online (and still it 
took me a few hits to get the mark-up fully Yahoo-compliant).


As a side comment: I am reading a bit of impatience from in between the 
lines of your message.


After more than 100 Mio euro of European and US research funding, eight 
years of research, and a large share of all academic papers in the field 
with rather limited impact, it would be pretty unfair by anyone from the 
core Semantic Web research cohort to be impatient over delays in the 
order of magnitude of weeks with Yahoo SearchMonkey or GoodRelations to 
deliver.



Martin

Juan Sequeda wrote:

So I guess there isn't an answer to Eugenio's question then.

Juan Sequeda, Ph.D Student
Dept. of Computer Sciences
The University of Texas at Austin
www.juansequeda.com
www.semanticwebaustin.org


On Wed, Sep 23, 2009 at 4:45 AM, Eugenio Tacchini wrote:

  

At 10.24 21/09/2009 +0200, Martin Hepp (UniBW) wrote:



Hi Juan, Eugenio:


  

Where can we see search results in Yahoo that come from the RDF of


Bestbuy
  

and Goodrelations?


First, note that currently, only the standard Yahoo search results are by
default enhanced by structured meta-data, i.e., you do not appear in the
"local business" directory by Yahoo automatically. I spoke with Yahoo about
that recently and they said that inclusion in those special Yahoo pages
would be a future option, assumed that the amount of data out there is of
sufficient quantity and quality.

You can check the appearance of a particular page using

   * wwwurl:

as the search parameter at <http://www.yahoo.com>http://www.yahoo.com.

  

[...]
Hi Martin and thanks for your reply.

My question was probably more basic: I just wanted to know some good
examples to show during a seminar I have to give in a faculty of economics.
So is there a *real* business Web site (not a demo) which provides RDFa
data crawled by Yahoo? I just would like to see the RDFa in the source of
the site and the enanched result in Yahoo; it would be ok even without a
good relation-enanchement.

Cheers,

Eugenio







  


--
--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  mh...@computer.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
http://www.heppnetz.de/ (personal)
skype:   mfhepp 
twitter: mfhepp


Check out GoodRelations for E-Commerce on the Web of Linked Data!
=

Webcast:
http://www.heppnetz.de/projects/goodrelations/webcast/

Recipe for Yahoo SearchMonkey:
http://tr.im/rAbN

Talk at the Semantic Technology Conference 2009: 
"Semantic Web-based E-Commerce: The GoodRelations Ontology"

http://tinyurl.com/semtech-hepp

Talk at 


Overview article on Semantic Universe:
http://tinyurl.com/goodrelations-universe

Project page:
http://purl.org/goodrelations/

Resources for developers:
http://www.ebusiness-unibw.org/wiki/GoodRelations

Tutorial materials:
CEC'09 2009 Tutorial: The Web of Data for E-Commerce: A Hands-on Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey 
http://tr.im/grcec09


<>

Re: Yahoo RDFa enahced results example

2009-09-27 Thread Martin Hepp (UniBW) 

Hi Eugenio:

>I think I'm missing the point, Yahoo announced the first support for 
microformats more or less one year and half ago, and for RDFa one year 
ago 
>(http://developer.yahoo.net/blog/archives/2008/09/searchmonkey_support_for_rdfa_enabled.html 
), am I >wrong?


Yahoo announced the support for RDFa in the SearchMonkey index last autumn.

That meant, they started crawling RDFa on the basis of a set of selected 
vocabularies (foaf, sioc, goodrelations, ...)
and make the resulting meta-data available for Yahoo-internal and other 
applications via

the extra SearchMonkey index.

Since then, application developers have been able to access that index 
for their own software or build own search engines with the Yahoo BOSS 
framework.


For example, we wrote a small demo app that mimics Yahoo search and 
shows the RDFa meta-data for any page as in the Yahoo index, if any such 
data is available:


http://goodrelations-search.appspot.com/

(Note that the N3 output has quite some quirks as compared to what 
PyRDFa extracts; there is a bug at Yahoo's side, but they are working on 
that).


In a nutshell: Until recently, SearchMonkey meta-data was visible only

- inside BOSS-applications or
- if you were signed in to Yahoo AND activated an extension from the 
Yahoo SearchMonkey gallery or
- if you were signed in to Yahoo AND wrote your own extension based on 
SearchMonkey meta-data.


Now, very recently Yahoo announced that SearchMonkey meta-data for a 
couple of typical page contents, namely GoodRelations-based price 
information,
would be used to improve the rendering of the general Yahoo search 
results pages - i.e., for anybody, without the need to use any extra 
software or signing in.


That is a major innovation because it creates an incentive for any 
business in the world to use GoodRelations and other vocabularies for 
augmenting their pages.


I hope that clarifies the issue.

Martin


Eugenio Tacchini wrote:

At 16.15 25/09/2009 +0200, you wrote:

Dear Juan:

Juan Sequeda wrote:


So I guess there isn't an answer to Eugenio's question then.


The answer is: I don't know a URI that, as of today, already appears 
in Yahoo with more details based on RDFa mark-up, but that will 
change very soon.

If Peter has one, I would be happy to kearn of it, of course.

Note that

-  is was only something like five weeks ago that Yahoo officially 
activated the enhanced display functionality and
- that the current re-crawling/update cycles at all major search 
engines are in the order of magnitude of 2 - 8 weeks, depending on 
your page popularity.


I think I'm missing the point, Yahoo announced the first support for 
microformats more or less one year and half ago, and for RDFa one year 
ago 
(http://developer.yahoo.net/blog/archives/2008/09/searchmonkey_support_for_rdfa_enabled.html 
), am I wrong?




E.




--
--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  mh...@computer.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
http://www.heppnetz.de/ (personal)
skype:   mfhepp 
twitter: mfhepp


Check out GoodRelations for E-Commerce on the Web of Linked Data!
=

Webcast:
http://www.heppnetz.de/projects/goodrelations/webcast/

Recipe for Yahoo SearchMonkey:
http://tr.im/rAbN

Talk at the Semantic Technology Conference 2009: 
"Semantic Web-based E-Commerce: The GoodRelations Ontology"

http://tinyurl.com/semtech-hepp

Talk at 


Overview article on Semantic Universe:
http://tinyurl.com/goodrelations-universe

Project page:
http://purl.org/goodrelations/

Resources for developers:
http://www.ebusiness-unibw.org/wiki/GoodRelations

Tutorial materials:
CEC'09 2009 Tutorial: The Web of Data for E-Commerce: A Hands-on Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey 
http://tr.im/grcec09


<>

Re: Yahoo RDFa enahced results example

2009-09-27 Thread Martin Hepp (UniBW) 

Hi Juan:


that really does clarify it, but I still have not seen any results in Yahoo
Search that have enhanced results thank to the RDFa. Can you point me to
some examples? 


As said in my earlier mail: I am still eagerly waiting for existing 
pages like


http://www.heppnetz.de/searchmonkey/product.html
(toy / mock-up)

http://www.waffen-frank-shop.de/Nach-Hersteller/VICTORINOX/SwissChamp.html
(one of may real installations)

will appear in Yahoo. They all validate in the Yahoo tool

http://developer.search.yahoo.com/help/objects/product

(see the very bottom for the respective validator form)

but are not yet included in their current status in the Yahoo 
SearchMonkey index.


Once they have been crawled, they should be visible in Yahoo.com.

I am also eagerly waiting for that day to happen, and expect it to be in 
between a week and a month. The main reason for the delay is that such 
pages on the long tail of popularity are being visited by the Yahoo 
crawler a lot less frequently than those at the popular head of the 
distribution.


So basically, we'll have to wait 2 - 3 weeks.


Can we find enhanced results from Best Buy?


Note that BestBuy is currently using RDF/XML only. I assume that they 
will add RDFa variants of GoodRelations recipes soon, which may bring us 
452,000 pages for showcasing quickly.


Best
Martin

Juan Sequeda wrote:

Martin,



Having these examples will make a compelling case to others when I always
get asked "what are the benefits of putting RDFa in my page"

Thanks!

Juan Sequeda, Ph.D Student
Dept. of Computer Sciences
The University of Texas at Austin
www.juansequeda.com
www.semanticwebaustin.org


On Sun, Sep 27, 2009 at 10:03 AM, Martin Hepp (UniBW) <
martin.h...@ebusiness-unibw.org> wrote:

  

Hi Eugenio:



I think I'm missing the point, Yahoo announced the first support for
  

microformats more or less one year and half ago, and for RDFa one year ago


(<
  

http://developer.yahoo.net/blog/archives/2008/09/searchmonkey_support_for_rdfa_enabled.html

http://developer.yahoo.net/blog/archives/2008/09/searchmonkey_support_for_rdfa_enabled.html), am I >wrong?


Yahoo announced the support for RDFa in the SearchMonkey index last autumn.

That meant, they started crawling RDFa on the basis of a set of selected
vocabularies (foaf, sioc, goodrelations, ...)
and make the resulting meta-data available for Yahoo-internal and other
applications via
the extra SearchMonkey index.

Since then, application developers have been able to access that index for
their own software or build own search engines with the Yahoo BOSS
framework.

For example, we wrote a small demo app that mimics Yahoo search and shows
the RDFa meta-data for any page as in the Yahoo index, if any such data is
available:

http://goodrelations-search.appspot.com/

(Note that the N3 output has quite some quirks as compared to what PyRDFa
extracts; there is a bug at Yahoo's side, but they are working on that).

In a nutshell: Until recently, SearchMonkey meta-data was visible only

- inside BOSS-applications or
- if you were signed in to Yahoo AND activated an extension from the Yahoo
SearchMonkey gallery or
- if you were signed in to Yahoo AND wrote your own extension based on
SearchMonkey meta-data.

Now, very recently Yahoo announced that SearchMonkey meta-data for a couple
of typical page contents, namely GoodRelations-based price information,
would be used to improve the rendering of the general Yahoo search results
pages - i.e., for anybody, without the need to use any extra software or
signing in.

That is a major innovation because it creates an incentive for any business
in the world to use GoodRelations and other vocabularies for augmenting
their pages.

I hope that clarifies the issue.

Martin



Eugenio Tacchini wrote:



At 16.15 25/09/2009 +0200, you wrote:

  

Dear Juan:

Juan Sequeda wrote:



So I guess there isn't an answer to Eugenio's question then.

  

The answer is: I don't know a URI that, as of today, already appears in
Yahoo with more details based on RDFa mark-up, but that will change very
soon.
If Peter has one, I would be happy to kearn of it, of course.

Note that

-  is was only something like five weeks ago that Yahoo officially
activated the enhanced display functionality and
- that the current re-crawling/update cycles at all major search engines
are in the order of magnitude of 2 - 8 weeks, depending on your page
popularity.



I think I'm missing the point, Yahoo announced the first support for
microformats more or less one year and half ago, and for RDFa one year ago
(<
http://developer.yahoo.net/blog/archives/2008/09/searchmonkey_support_for_rdfa_enabled.html
  
http://developer.yahoo.net/blog/archives/2008/09/searchmonkey_support_for_rdfa_enabled.html), am I wrong?




E.



  

--
--
martin h

Re: Yahoo RDFa enahced results example

2009-09-27 Thread Martin Hepp (UniBW) 

Hi Juan,

Juan Sequeda wrote:

Gotcha! Now I understand perfectly.

I'm trying to get the local businesses in Austin to add RDFa. However, I
have nothing tangible to show them. IMHO, the best way to convince business
to do this is if you go through the SEO people. But until we don't see Yahoo
(and Google) taking advantage of RDFa to enhance results, the business won't
go through the hassle of adding RDFa.
  

Yes and no ;-)
Yes, as far as the SEOs are concerned: I will be presenting 
GoodRelations + RDFa at SES 2009 in Chicago, likely one of the most 
important SEO events, and there is already give some interest among SEO 
experts in GoodRelations.


SEOs will have a huge market opportunity for helping companies optimize 
their GoodRelations markup. It will turn SEO from the art of improving a 
rank to the science of minimizing the search effort for a very specific 
target audience.



No, as far as Yahoo and Google are concerned: Their current moves are 
into the right direction, but in my opinion much too slow and cautious.
Additional details in Google and Yahoo search results are nice for 
convincing a local business to create a bit of GoodRelations markup. But 
that would be exploiting only 1% of the business potential.


Getting the remaining 99% of the cake will require different technology 
approaches and business models.  I guess they will smell the cheese and 
increase their investment fundamentally very soon.


So it may be good for a small business to see a bit of extra data in 
Google, Yahoo, and Bing. But the real target applications will be more 
fundamental innovations.



*One final question. Yahoo crawls all vocabularies while Google only crawls
their vocabulary, right?
To my knowledge, both crawl only a predefined list of vocabs. 
Fortunately, Yahoo crawls standard vocabs, Google invented their own

 Austin is the live music capital of the world, so
imagine the amount of music and event data on websites. If I use the music
ontology to mark up the data, will Yahoo crawl this and potentially use it
in their search results?

You have to ask Yahoo :-)

 What is the best vocabulary for events (venue,
time, description, price)?
  
For events, I don't know. There is an austrian initiative, but it is 
still pretty much alpha.


As for the price: GoodRelations. Because, again an important 
distinction: It is not the event that has a price - it is a ticket 
(permission) to attend the event that has a price ;-)


There will be a respective recipie at


http://www.ebusiness-unibw.org/wiki/GoodRelationsTickets

soon; currently it is a stub...

Best
Martin


--
--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  mh...@computer.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
http://www.heppnetz.de/ (personal)
skype:   mfhepp 
twitter: mfhepp


Check out GoodRelations for E-Commerce on the Web of Linked Data!
=

Webcast:
http://www.heppnetz.de/projects/goodrelations/webcast/

Recipe for Yahoo SearchMonkey:
http://tr.im/rAbN

Talk at the Semantic Technology Conference 2009: 
"Semantic Web-based E-Commerce: The GoodRelations Ontology"

http://tinyurl.com/semtech-hepp

Talk at 


Overview article on Semantic Universe:
http://tinyurl.com/goodrelations-universe

Project page:
http://purl.org/goodrelations/

Resources for developers:
http://www.ebusiness-unibw.org/wiki/GoodRelations

Tutorial materials:
CEC'09 2009 Tutorial: The Web of Data for E-Commerce: A Hands-on Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey 
http://tr.im/grcec09


<>

OpenLink Software brings full power of GoodRelations BestBuy and others

2009-10-05 Thread Martin Hepp (UniBW) 

Dear all:

I just found out that Kingsley Idehen released a major update of 
Virtuoso sponger cartridges that create and collate "virtual" meta-data 
for existing Web pages.


See

http://tr.im/bestbuygr2

for an example.

The cool thing is

- The data does not come from BestBuy directly; it is collected and 
collated on the fly from APIs and other resources (i.e. this is not yet 
the original BestBuy data).
- It used the full level of detail of the GoodRelations ontology for 
e-commerce, http://www.ebusiness-unibw.org/wiki/GoodRelations (not just 
1 -2 properties).

- It exposes both price information and technical features in GoodRelations.
- If you request an XHTML version of the page, you get the meta-data in 
RDFa for further reuse and combination in novel scenarios.


There are a few very minor issues with the data; we already provided 
respective feedback to Openlink SW. But all should be quick fixes.


I am confident that this is a major step for a Web of Linked Data, 
because the same approach can bring unprecedented amounts of highly 
detailed GoodRelations data for existing Web content.


Well done, Kingsley!

Best
Martin

--
--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  mh...@computer.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
http://www.heppnetz.de/ (personal)
skype:   mfhepp 
twitter: mfhepp


Check out GoodRelations for E-Commerce on the Web of Linked Data!
=

Webcast:
http://www.heppnetz.de/projects/goodrelations/webcast/

Recipe for Yahoo SearchMonkey:
http://tr.im/rAbN

Talk at the Semantic Technology Conference 2009: 
"Semantic Web-based E-Commerce: The GoodRelations Ontology"

http://tinyurl.com/semtech-hepp

Talk at 


Overview article on Semantic Universe:
http://tinyurl.com/goodrelations-universe

Project page:
http://purl.org/goodrelations/

Resources for developers:
http://www.ebusiness-unibw.org/wiki/GoodRelations

Tutorial materials:
CEC'09 2009 Tutorial: The Web of Data for E-Commerce: A Hands-on Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey 
http://tr.im/grcec09


<>

ANN: GoodRelations Popularity Statistics Now Available as RDFa

2009-10-07 Thread Martin Hepp (UniBW) 

Dear all:

We have just started monitoring the individual popularity of
GoodRelations classes and properties. See the application at

http://goodrelations-stats.appspot.com/

I just added RDFa markup to the results page so that the data can be
fetched / parsed and reused. There is currently no official
documentation of the schema used, but I assume it is almost obvious.

Best

Martin Hepp

PS: The most authoritative paper on GoodRelations so far is the EKAW 
2008 conference version, available at 
http://www.heppnetz.de/files/GoodRelationsEKAW2008-crc-final.pdf.


--
--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  mh...@computer.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
 http://www.heppnetz.de/ (personal)
skype:   mfhepp
twitter: mfhepp

Check out GoodRelations for E-Commerce on the Web of Linked Data!
=

Webcast:
http://www.heppnetz.de/projects/goodrelations/webcast/

Recipe for Yahoo SearchMonkey:
http://tr.im/rAbN

Talk at the Semantic Technology Conference 2009:
"Semantic Web-based E-Commerce: The GoodRelations Ontology"
http://tinyurl.com/semtech-hepp

Talk at

Overview article on Semantic Universe:
http://tinyurl.com/goodrelations-universe

Project page:
http://purl.org/goodrelations/

Resources for developers:
http://www.ebusiness-unibw.org/wiki/GoodRelations

Tutorial materials:
CEC'09 2009 Tutorial: The Web of Data for E-Commerce: A Hands-on 
Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey

http://tr.im/grcec09
<>

Useful rules & axioms for GoodRelations

2009-10-10 Thread Martin Hepp (UniBW) 

Dear all:

I just finalized a Wiki page on useful rules & axioms for GoodRelations:

http://www.ebusiness-unibw.org/wiki/GoodRelationsOptionalAxiomsAndLinks

The page now contains recommended default rules for

- product models,
- product model variants, and
- the gr:includes shortcut.

Any feedback is greatly appreciated.

Best wishes

Martin Hepp

--
--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  h...@ebusiness-unibw.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
 http://www.heppnetz.de/ (personal)
skype:   mfhepp
twitter: mfhepp

Check out GoodRelations for E-Commerce on the Web of Linked Data!
=

Webcast:
http://www.heppnetz.de/projects/goodrelations/webcast/

Recipe for Yahoo SearchMonkey:
http://www.ebusiness-unibw.org/wiki/GoodRelations_and_Yahoo_SearchMonkey

Talk at the Semantic Technology Conference 2009:
"Semantic Web-based E-Commerce: The GoodRelations Ontology"
http://www.slideshare.net/mhepp/semantic-webbased-ecommerce-the-goodrelations-ontology-1535287

Overview article on Semantic Universe:
http://www.semanticuniverse.com/articles-semantic-web-based-e-commerce-webmasters-get-ready.html

Project page:
http://purl.org/goodrelations/

Resources for developers:
http://www.ebusiness-unibw.org/wiki/GoodRelations

Tutorial materials:
CEC'09 2009 Tutorial: The Web of Data for E-Commerce: A Hands-on 
Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey

http://www.ebusiness-unibw.org/wiki/Web_of_Data_for_E-Commerce_Tutorial_IEEE_CEC%2709

Breaking News: GoodRelations data now shows up in Yahoo!

2009-10-11 Thread Martin Hepp (UniBW) 

Dear all:

I can report on the first confirmed page with GoodRelations + RDFa rich
meta-data that shows up in Yahoo with additional details:

URI: http://tr.im/yahooproduct2

Screenshot attached. The price of $ 34.99 comes directly from the RDFa
markup, as described in the recipe at

http://www.ebusiness-unibw.org/wiki/GoodRelations_and_Yahoo_SearchMonkey

Thanks to Peter Mika, Evan Goer, and Kevin Haas for their hard work in
fine-tuning the parsing & processing. Theoretically, there should also
be the product image next to the search result; we are currently working
on fixing that, too.

But the good news is: There is now a crystal-clear, easy-to-communicate
incentive for any webmaster in the world to add price and product
descriptions using GoodRelations in RDFa to all pages.

Please spread the word!

For more recipes, see
http://www.ebusiness-unibw.org/wiki/GoodRelations#CookBook:_GoodRelations_Recipes_and_Examples

Best wishes

Martin

--
--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  h...@ebusiness-unibw.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
  http://www.heppnetz.de/ (personal)
skype:   mfhepp
twitter: mfhepp

Check out GoodRelations for E-Commerce on the Web of Linked Data!
=

Webcast:
http://www.heppnetz.de/projects/goodrelations/webcast/

Recipe for Yahoo SearchMonkey:
http://www.ebusiness-unibw.org/wiki/GoodRelations_and_Yahoo_SearchMonkey

Talk at the Semantic Technology Conference 2009:
"Semantic Web-based E-Commerce: The GoodRelations Ontology"
http://www.slideshare.net/mhepp/semantic-webbased-ecommerce-the-goodrelations-ontology-1535287

Overview article on Semantic Universe:
http://www.semanticuniverse.com/articles-semantic-web-based-e-commerce-webmasters-get-ready.html

Project page:
http://purl.org/goodrelations/

Resources for developers:
http://www.ebusiness-unibw.org/wiki/GoodRelations

Tutorial materials:
CEC'09 2009 Tutorial: The Web of Data for E-Commerce: A Hands-on
Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey
http://www.ebusiness-unibw.org/wiki/Web_of_Data_for_E-Commerce_Tutorial_IEEE_CEC%2709


<><>

GoodRelations: ProductOrService and its subclasses

2009-10-17 Thread Martin Hepp (UniBW) 

Dear all:

I thought it was helpful to clarify the usage of the four classes for 
products and services in GoodRelations:


The intended usage is as follows:

   * ProductOrServicesSomeInstancesPlaceholder
 o Use this when you have multiple, mass produced items for 
sale. It represents multiple copies / individuals of the same kind.
 o This is the most frequently needed class. Also, use this for 
any service offers.
 o You can attach an inventory level to that instance in order 
to communicate how many items you are speaking of.
 o A typical Web shop will use this class for all items, unless 
you are selling very unique stuff (antiques, oldtimers, ...)


   * ActualProductOrServiceInstance:
 o Use this for eBay auctions, private offers of used goods, 
etc. - whenever your are offering a single, clearly identified object.
 o When you can attach a single serial number to the good your 
are offering, use this class.


   * ProductOrServiceModel
 o This class represents "datasheets" - the abstract template 
for mass-produced products.
 o If you are a manufacturer, use this class for each of your 
products.


   * ProductOrService
 o This is the superclass of all three other classes.
 o The only usage of this class is for defining specific 
vocabularies (ontologies) for vertical industries. All those must be 
subclasses of this class.
 o See 
http://www.ebusiness-unibw.org/wiki/Own_GoodRelations_Vocabularies


Remarks:

   * A gr:Offering can only be linked to instances of 
ProductOrServicesSomeInstancesPlaceholder or ActualProductOrServiceInstance.
   * Don't reuse someone else's 
ProductOrServicesSomeInstancesPlaceholder else. For example, the current 
BookMashup application wrongly uses the same instance for multiple 
vendors' offers.
But they are not referring to the same set of objects - they each have 
individual items. So always define a new instance of this class in your 
own namespace!


See the GoodRelations Primer, section 5.2 for more details:

http://www.heppnetz.de/projects/goodrelations/primer/
http://www.heppnetz.de/projects/goodrelations/primer/#5.2_Products_and_Services:_Models.2C_Classes.2C_and_Instances

Best
Martin Hepp

--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  h...@ebusiness-unibw.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
http://www.heppnetz.de/ (personal)
skype:   mfhepp 
twitter: mfhepp


Check out GoodRelations for E-Commerce on the Web of Linked Data!
=

Webcast:
http://www.heppnetz.de/projects/goodrelations/webcast/

Recipe for Yahoo SearchMonkey:
http://www.ebusiness-unibw.org/wiki/GoodRelations_and_Yahoo_SearchMonkey

Talk at the Semantic Technology Conference 2009: 
"Semantic Web-based E-Commerce: The GoodRelations Ontology"

http://www.slideshare.net/mhepp/semantic-webbased-ecommerce-the-goodrelations-ontology-1535287

Overview article on Semantic Universe:
http://www.semanticuniverse.com/articles-semantic-web-based-e-commerce-webmasters-get-ready.html

Project page:
http://purl.org/goodrelations/

Resources for developers:
http://www.ebusiness-unibw.org/wiki/GoodRelations

Tutorial materials:
CEC'09 2009 Tutorial: The Web of Data for E-Commerce: A Hands-on Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey 
http://www.ebusiness-unibw.org/wiki/Web_of_Data_for_E-Commerce_Tutorial_IEEE_CEC%2709



<>

Re: Breaking News: GoodRelations data now shows up in Yahoo!

2009-10-17 Thread Martin Hepp (UniBW) 

Hi David,

Daniel O'Connor wrote:

http://goodrelations.doconnor.user.dev.freebaseapps.com/

Freebase data being rendered as Good Relations ("Or Barbie and Ken's
Semantic Web Playset")


  

thanks for the initiative - very valuable!

>What's the best way to validate this / check it would show up in Yahoo
>search results?

You can use http://developer.search.yahoo.com/help/objects/product

A few comments as for the data:

What you find in Freebase are likely gr:ProductOrServiceModel instances, 
not offers.  So you should create instances of gr:ProductOrServiceModel 
for each "Product" in Freebase first.


Those define the properties of the model - e.g. that what you would 
usually find in a manufacturer's datasheet:


- description
- image
- EAN/UPC
- weight
etc.

Note that the price is not a feature of the product model, but a 
property of one specific offer to sell such objects, i.e. a gr:Offering. 
(I assume there will be way more product models in Freebase than those 
which you find currently, and it could be that querying for a price is 
the reason.)


If you have a business entity and a price, you could also add a 
gr:Offering etc. as you are doing right now. But note that Mattel will 
often not sell individual barbie dolls to end users at the suggested 
retail price. So the offer must be constrained to resellers. And then 
you don't have  price...


This is why I would suggest to limit the export to the model data. Those 
can be linked in the LOD cloud to actual offers, e.g. from BestBuy or 
from eBay (via OpenLink's new eBay sponger).


So the basic structure should be

a) Model data ("Datasheets")

foo:Barbie1234 a gr:ProductOrServiceModel;
rdfs:label "blabla"@en;
rdfs:comment "blabla"@en;
gr:hasEAN_UCC-13 "1234567890123"^^xsd:string;
gr:hasManufacturer foo:Mattel.
#etc.

foo:Mattel a gr:BusinessEntity.
gr:legalName "Mattel Toys Inc."@en.
#etc.

You can add the statement that Mattel also offers individuals of that type:

foo:Offer a gr:Offering;
   gr:includes foo:SomeBarbie1234s.

foo:Mattel gr:offers foo:Offer.

foo:SomeBarbie1234s a gr:ProductOrServicesSomeInstancesPlaceholder;
rdfs:label "blabla"@en;
rdfs:comment "blabla"@en;
gr:hasEAN_UCC-13 "1234567890123"^^xsd:string;
gr:hasMakeAndModel foo:Barbie1234.
#etc.

But then you should not attach a UnitPriceSpecification.

For your reference, I add a list of properties for gr:Offering, 
gr:ProductOrServiceModel, and gr:ProductOrServicesSomeInstancesPlaceholder.

Also, I recommend the UML diagram at

http://www.ebusiness-unibw.org/wiki/File:Goodrelations-UML-2009-07-18.pdf

gr:Offering
   owl:includes
   owl:hasBusinessFunction
   owl:availableDeliveryMethods
   owl:eligibleCustomerTypes
   owl:includesObject
   owl:availableAtOrFrom
   owl:hasPriceSpecification
   owl:hasWarrantyPromise
   owl:acceptedPaymentMethods
   owl:eligibleRegions
   owl:hasEAN_UCC-13
   owl:hasGTIN-14
   owl:hasStockKeepingUnit
   owl:validFrom
   owl:validThrough

gr:ProductOrServiceModel
specific: none
inherited:
   owl:isAccessoryOrSparePartFor
   owl:qualitativeProductOrServiceProperty
   owl:isSimilarTo
   owl:isConsumableFor
   owl:quantitativeProductOrServiceProperty
   owl:hasManufacturer
   owl:datatypeProductOrServiceProperty
   owl:hasEAN_UCC-13
   owl:hasGTIN-14
   owl:hasStockKeepingUnit

gr:ProductOrServicesSomeInstancesPlaceholder
specific:
   owl:hasInventoryLevel
   owl:hasMakeAndModel
inherited:
   owl:isAccessoryOrSparePartFor
   owl:qualitativeProductOrServiceProperty
   owl:isSimilarTo
   owl:isConsumableFor
   owl:quantitativeProductOrServiceProperty
   owl:hasManufacturer
   owl:datatypeProductOrServiceProperty
   owl:hasEAN_UCC-13
   owl:hasGTIN-14
   owl:hasStockKeepingUnit

Best
Martin

--
--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  h...@ebusiness-unibw.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
http://www.heppnetz.de/ (personal)
skype:   mfhepp 
twitter: mfhepp


Check out GoodRelations for E-Commerce on the Web of Linked Data!
=

Webcast:
http://www.heppnetz.de/projects/goodrelations/webcast/

Recipe for Yahoo SearchMonkey:
http://www.ebusiness-unibw.org/wiki/GoodRelations_and_Yahoo_SearchMonkey

Talk at the Semantic Technology Conference 2009: 
"Semantic Web-based E-Commerce: The GoodRelations Ontology"

http://www.slideshare.net/mhepp/semantic-webbased-ecommerce-the-goodrelations-ontology-1535287

Overview article on Semantic Universe:
http://www.semanticuniverse.com/articles-semantic-web-based-e-commerce-webmasters-get-ready.html

Project page:
http://purl.org/goodrelations/

Resources for developers:
http://www.ebusiness-unibw.org/wiki/GoodRelations

Tutorial materials:
CEC'09 2009 Tutorial: The Web of Data for E-Commerce: A Hands-on Introduction to the GoodRelations Ontology, RDFa, and

Re: Yahoo RDFa enahced results example

2009-10-17 Thread Martin Hepp (UniBW) 

Hi Eugenio:


Eugenio Tacchini wrote:
Hi Martin, thanks a lot for your detailed explanation; I will try to 
play with searchmonkey ASAP. I'm also the webmaster of an Italian Web 
site that sells event tickets and downloadable music and I would like 
to apply goodrelations to it.



There is the stub of a recipe for this at
http://www.ebusiness-unibw.org/wiki/GoodRelationsTickets
I still have moderated hope to be able to finish the recipes within the 
next couple of weeks.


In general, the key think to keep in mind with GoodRelations is that you 
will always have three main entities


someone - e.g. the company offering something; this is a gr:BusinessEntity
something, on which a bundle of rights is offered to be transferred for 
a compensation, e.g. a ticket; this is mostly a 
gr:ProductOrServicesSomeInstancesPlaceholder
a promise - the statement that the "someone" is offering to transfer a 
bundle of rights on the "something". this is the gr:Offering.


In other words, GoodRelations is all about Agent - Promise - Object 
("APO"). If you keep those three entities distinct, your are always on 
the right track.


The second key resource for anybody implementing GoodRelations is the 
UML diagram at


http://www.ebusiness-unibw.org/wiki/File:Goodrelations-UML-2009-07-18.pdf

In your case, you will have

- an event (this is outside the scope of goodrelations)
- a ticket, that grants permission to attend a certain event

Make sure that you do not fall in the trap of mixing the event and the 
ticket ;-)


Best
Martin

--
--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  h...@ebusiness-unibw.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
http://www.heppnetz.de/ (personal)
skype:   mfhepp 
twitter: mfhepp


Check out GoodRelations for E-Commerce on the Web of Linked Data!
=

Webcast:
http://www.heppnetz.de/projects/goodrelations/webcast/

Recipe for Yahoo SearchMonkey:
http://www.ebusiness-unibw.org/wiki/GoodRelations_and_Yahoo_SearchMonkey

Talk at the Semantic Technology Conference 2009: 
"Semantic Web-based E-Commerce: The GoodRelations Ontology"

http://www.slideshare.net/mhepp/semantic-webbased-ecommerce-the-goodrelations-ontology-1535287

Overview article on Semantic Universe:
http://www.semanticuniverse.com/articles-semantic-web-based-e-commerce-webmasters-get-ready.html

Project page:
http://purl.org/goodrelations/

Resources for developers:
http://www.ebusiness-unibw.org/wiki/GoodRelations

Tutorial materials:
CEC'09 2009 Tutorial: The Web of Data for E-Commerce: A Hands-on Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey 
http://www.ebusiness-unibw.org/wiki/Web_of_Data_for_E-Commerce_Tutorial_IEEE_CEC%2709



<>

Re: The Power of Virtuoso Sponger Technology

2009-10-17 Thread Martin Hepp (UniBW) 
I don't think so, because this would require that Sindice crawled the 
whole regular web and checked the Spongers for each URL (sic!).


Juan Sequeda wrote:

Does Sindice crawl this (or any other semantic web search engines)?
Juan Sequeda, Ph.D Student
Dept. of Computer Sciences
The University of Texas at Austin
www.juansequeda.com
www.semanticwebaustin.org


On Sat, Oct 17, 2009 at 4:24 AM, Martin Hepp (UniBW) <
h...@ebusiness-unibw.org> wrote:

  

Dear all:

I just found out that the Virtuoso Sponger technology is even more
powerful than I thought.

Briefly: "Spongers" create rich GoodRelations (and other RDF) meta-data
for existing Web pages on-the-fly. Other than traditional
screen-scraping approaches, Spongers reuse public APIs and other
techniques, so the data is of unprecedented degree of structure.

Now, this can be directly used in arbitrary queries... by simply using
the URI of the *existing* HTML Web page in the FROM clause of a SPARQL
query.

Example:



http://www.amazon.com/Semantic-Web-Real-World-Applications-Industry/dp/0387485309

is a Web page in plain HTML offering a book. Amazon does not yet produce
GoodRelations meta-data on their pages.

If you go to

   http://uriburner.com/sparql

and paste the URI in the "Default Graph URI " field and select "Retrieve
remote RDF for all missing source graphs", then a query like

  "SELECT * WHERE {?s ?p ?o} LIMIT 50"

returns a fully-fledged GoodRelations description for that page - as if
Amazon was already supporting GoodRelations for each of its > 4 million
items!

There are spongers for BestBuy, eBay, Zillow, and many other types of
resources.

Wow!

Congrats to Kingsley and his team!

Best wishes

Martin Hepp

--
--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  h...@ebusiness-unibw.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
http://www.heppnetz.de/ (personal)
skype:   mfhepp
twitter: mfhepp

Check out GoodRelations for E-Commerce on the Web of Linked Data!
=

Webcast:
http://www.heppnetz.de/projects/goodrelations/webcast/

Recipe for Yahoo SearchMonkey:
http://www.ebusiness-unibw.org/wiki/GoodRelations_and_Yahoo_SearchMonkey

Talk at the Semantic Technology Conference 2009:
"Semantic Web-based E-Commerce: The GoodRelations Ontology"

http://www.slideshare.net/mhepp/semantic-webbased-ecommerce-the-goodrelations-ontology-1535287

Overview article on Semantic Universe:

http://www.semanticuniverse.com/articles-semantic-web-based-e-commerce-webmasters-get-ready.html

Project page:
http://purl.org/goodrelations/

Resources for developers:
http://www.ebusiness-unibw.org/wiki/GoodRelations

Tutorial materials:
CEC'09 2009 Tutorial: The Web of Data for E-Commerce: A Hands-on
Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey

http://www.ebusiness-unibw.org/wiki/Web_of_Data_for_E-Commerce_Tutorial_IEEE_CEC%2709







  


--
--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  h...@ebusiness-unibw.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
http://www.heppnetz.de/ (personal)
skype:   mfhepp 
twitter: mfhepp


Check out GoodRelations for E-Commerce on the Web of Linked Data!
=

Webcast:
http://www.heppnetz.de/projects/goodrelations/webcast/

Recipe for Yahoo SearchMonkey:
http://www.ebusiness-unibw.org/wiki/GoodRelations_and_Yahoo_SearchMonkey

Talk at the Semantic Technology Conference 2009: 
"Semantic Web-based E-Commerce: The GoodRelations Ontology"

http://www.slideshare.net/mhepp/semantic-webbased-ecommerce-the-goodrelations-ontology-1535287

Overview article on Semantic Universe:
http://www.semanticuniverse.com/articles-semantic-web-based-e-commerce-webmasters-get-ready.html

Project page:
http://purl.org/goodrelations/

Resources for developers:
http://www.ebusiness-unibw.org/wiki/GoodRelations

Tutorial materials:
CEC'09 2009 Tutorial: The Web of Data for E-Commerce: A Hands-on Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey 
http://www.ebusiness-unibw.org/wiki/Web_of_Data_for_E-Commerce_Tutorial_IEEE_CEC%2709

Re: The Power of Virtuoso Sponger Technology

2009-10-18 Thread Martin Hepp (UniBW) 

Guys,
the Web of Data cannot rely on mass data crawling of the whole Web but 
must combine cached data with federated on-demand queries. Structured 
data requires much faster update cycles than typical text-based Web 
indices. For example, Google and Yahoo can rely on the fact that 
"http://www.cnn.com"; is relevant for "news". Such will not change within 
minutes. And both Google and Yahoo need up to several weeks to visit 
your page again.


When it comes to structured price and availability information, your 
data may become outdated within hours, if not seconds. Think of eBay 
auctions, hotel or flight availability, etc.


So it will boil down to technology that combines (1) crawling and 
caching rather stable data sets with (2) distributing queries and parts 
of queries among the right SPARQL endpoints (whatever actual DB 
technology they expose).


You can keep a text index of the whole Web, if crawling cycles in the 
order of magnitude of weeks are fine. For structured, linked data that 
exposes dynamic database content, "dumb" crawling and caching will not 
scale.


If the DB technology is able to involve the right set of endpoints for 
parts of the query, why would you need a complete replication of all 
databases in the world inside one huge repository?


That repository will be a million-node cluster anyway. Why not directly 
use the millions of nodes that provide the data and cache just the 
endpoint meta-data?


Martin



Giovanni Tummarello wrote:

With respect to crawling and "scraping" or "sponging" or .. "trying to
guess" based on partial fragments of structured information i can say
3 thngs

a) No, we're not doing it at the moment, we are only covering those
who chose to put structured semantics. Some book stuff shows up in
Sig.ma .. e.g. http://sig.ma/search?q=frank+van+harmelen&sources=100
bookfinder, our jerome digital library installation, but the triplees
they provide are scarce and dont contribute much.  It would take so
little for this to improve on their side i believe.

b) No, we are not religious about this. We have talked about it
several times, it might make sense to try to understand as much as the
web as possible and index it. Maybe we'll do it in the future for
selected fractions of the web to show how it looks

c) crawling should be just one mean of acquiring the semantic web. in
case of bestbuy or other large retailers where prices change possibly
everyday crawling as a mean to emulate a simple.. call to a web
service seems really not the smart thing to do. Will data providers
really support with data dumps?

cheers
Giovanni


On Sat, Oct 17, 2009 at 3:32 PM, Juan Sequeda  wrote:
  

But Sindice could at least crawl Amazon.
It would be great to use sig.ma to create a "meshup" with the amazon data.


Juan Sequeda, Ph.D Student
Dept. of Computer Sciences
The University of Texas at Austin
www.juansequeda.com
www.semanticwebaustin.org


On Sat, Oct 17, 2009 at 9:28 AM, Martin Hepp (UniBW)
 wrote:


I don't think so, because this would require that Sindice crawled the
whole regular web and checked the Spongers for each URL (sic!).

Juan Sequeda wrote:

Does Sindice crawl this (or any other semantic web search engines)?
Juan Sequeda, Ph.D Student
Dept. of Computer Sciences
The University of Texas at Austin
www.juansequeda.com
www.semanticwebaustin.org


On Sat, Oct 17, 2009 at 4:24 AM, Martin Hepp (UniBW) <
h...@ebusiness-unibw.org> wrote:



Dear all:

I just found out that the Virtuoso Sponger technology is even more
powerful than I thought.

Briefly: "Spongers" create rich GoodRelations (and other RDF) meta-data
for existing Web pages on-the-fly. Other than traditional
screen-scraping approaches, Spongers reuse public APIs and other
techniques, so the data is of unprecedented degree of structure.

Now, this can be directly used in arbitrary queries... by simply using
the URI of the *existing* HTML Web page in the FROM clause of a SPARQL
query.

Example:




http://www.amazon.com/Semantic-Web-Real-World-Applications-Industry/dp/0387485309

is a Web page in plain HTML offering a book. Amazon does not yet produce
GoodRelations meta-data on their pages.

If you go to

   http://uriburner.com/sparql

and paste the URI in the "Default Graph URI " field and select "Retrieve
remote RDF for all missing source graphs", then a query like

  "SELECT * WHERE {?s ?p ?o} LIMIT 50"

returns a fully-fledged GoodRelations description for that page - as if
Amazon was already supporting GoodRelations for each of its > 4 million
items!

There are spongers for BestBuy, eBay, Zillow, and many other types of
resources.

Wow!

Congrats to Kingsley and his team!

Best wishes

Martin Hepp

--
--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  h

Re: Need help mapping two letter country code to URI

2009-11-09 Thread Martin Hepp (UniBW) 

Hi Aldo,

Note that there are multiple branches of the ISO 3166 familiy of codes. 
See pages 23 and 24 of the GoodRelations Technical Report 
(http://www.heppnetz.de/projects/goodrelations/GoodRelations-TR-final.pdf) 
for a more detailed discussion. I am still not aware of any 
authoritative URI schema for ISO 3166, which is why GoodRelations uses 
string literals for that code.


The key ISO page http://www.iso.org/iso/country_codes.htm does also not 
refer to any established http or URN URI schema for the ISO 3166 family 
of codes.


I assume that dbPedia URIs may be well suited, but they are not as 
authoritative. If they have ISO 3166 codes attached via properties, 
entity consolidation on that basis may be relatively simple.


Below, please find an excerpt from the discussion re identifiers for 
countries in the GoodRelations Technical Report:


Country or Region

...

GoodRelations could reuse several approaches for ontologies of regions 
and places for
specifying Countries and Regions. However, we suggest a more pragmatic 
approach of
reusing the ISO Standard 3166, in particular ISO 3166-1 (ISO, 2006) and 
ISO 3166-2
(ISO, 1998). The first defines 2- or 3-letter identifiers for existing 
countries and a few
independent geopolitical entities. ISO 3166-1 alpha-2 defines 2-letter 
codes for most
countries. There exist alternative standards with 3-letter codes and a 
numerical
representation. For the following reasons, we suggest using the 2-letter 
codes: First, they
are well established and people are likely more familiar with them (they 
are also used for
most top-level domains). Second, and more important, the 2-letter 
variant is the basis for
ISO 3166-2, which breaks down the countries from ISO 3166-1 into 
administrative
subdivisions (ISO, 1998). The code elements used in ISO 3166-2 consist 
of “the alpha-2
code element from ISO 3166-1 followed by a separator and a further 
string of up to three

alphanumeric characters e. g.” (from: http://www.iso.org/iso/en/prods-
services/iso3166ma/04background-on-iso-3166/iso3166-2.html).
This allows using simple string operations on the respective ISO 3166 
codes in order to
handle administrative subdivisions. For example, if a certain Offering 
is said to be valid
for Canada (ISO 3166-1 two-letter code “CA”), then one can infer that 
any longer search
string specifying an administrative subdivision of Canada (e.g. British 
Columbia, ISO

3166-2 “CA-BC”) is also an eligible region.
Examples: Canada (CA), Austria (AT), Canada: British Columbia (CA-BC), 
Italy (IT),

Italy: Province of Milano (IT-MI)

Note: More complex modeling of Countries and Regions may be useful in some
scenarions, and GoodRelations can be imported and extended if necessary. 
However,
most offerings on the Web contain statements on the level of countries 
only, for which

ISO 3166-1 is sufficient and very common.

Martin



Aldo Bucchi wrote:

Hi,

I found a dataset that represents countries as two letter country
codes: DK, FI, NO, SE, UK.
I would like to turn these into URIs of the actual countries they represent.

( I have no idea on whether this follows an ISO standard or is just
some private key in this system ).

Any ideas on a set of candidata URIs? I would like to run a complete
coverage test and take care I don't introduce distortion ( that is
pretty easy by doing some heuristic tests against labels, etc ).

There are some border cases that suggest this isn't ISO3166-1, but I
am not sure yet. ( and if it were, which widely used URIs are based on
this standard? ).

Thanks!
A

  


--
--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  h...@ebusiness-unibw.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
http://www.heppnetz.de/ (personal)
skype:   mfhepp 
twitter: mfhepp


Check out GoodRelations for E-Commerce on the Web of Linked Data!
=

Webcast:
http://www.heppnetz.de/projects/goodrelations/webcast/

Recipe for Yahoo SearchMonkey:
http://www.ebusiness-unibw.org/wiki/GoodRelations_and_Yahoo_SearchMonkey

Talk at the Semantic Technology Conference 2009: 
"Semantic Web-based E-Commerce: The GoodRelations Ontology"

http://www.slideshare.net/mhepp/semantic-webbased-ecommerce-the-goodrelations-ontology-1535287

Overview article on Semantic Universe:
http://www.semanticuniverse.com/articles-semantic-web-based-e-commerce-webmasters-get-ready.html

Project page:
http://purl.org/goodrelations/

Resources for developers:
http://www.ebusiness-unibw.org/wiki/GoodRelations

Tutorial materials:
CEC'09 2009 Tutorial: The Web of Data for E-Commerce: A Hands-on Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey 
http://www.ebusiness-unibw.org/wiki/Web_of_Data_for_E-Commerce_Tutorial_IEEE_CEC%2709



<>

Pre-release: New GoodRelations Annotator - Simple RDFa snippets for copy-and-paste

2009-11-11 Thread Martin Hepp (UniBW) 

Dear all:

We are in the process of finalizing an improved version of the
GoodRelations Annotator Tool.

With that tool, any company can quickly create a rich description of its
line of business, opening hours, payment options, and the like.

In the past, publishing the resulting RDF data proved to be too
difficult for many users - or impossible due to the lack of access
privileges. Now, based on our RDF2RDFa component,  the resulting rich
meta-data is turned into a simple 20+ lines RDFa snippet that can be
easily copied into your main Web page, directly before the closing
"" element.

This will work for anybody who can see and access a page's source code,
i.e. even in Content Management Systems or Wikis, etc.

Please check it out and provide feedback:

http://www.ebusiness-unibw.org/tools/goodrelations-annotator/

By the way, once you have published respective meta-data, you can check
the improved appearance in future search engines directly using the

http://igoogr.appspot.com/

application.

Simply enter search terms that bring up your respective page among the
top five hits in Google, and you will see the effect of GoodRelations
within seconds.

Best wishes

Martin Hepp

--
--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  h...@ebusiness-unibw.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
 http://www.heppnetz.de/ (personal)
skype:   mfhepp
twitter: mfhepp

Check out GoodRelations for E-Commerce on the Web of Linked Data!
=

Webcast:
http://www.heppnetz.de/projects/goodrelations/webcast/

Recipe for Yahoo SearchMonkey:
http://www.ebusiness-unibw.org/wiki/GoodRelations_and_Yahoo_SearchMonkey

Talk at the Semantic Technology Conference 2009:
"Semantic Web-based E-Commerce: The GoodRelations Ontology"
http://www.slideshare.net/mhepp/semantic-webbased-ecommerce-the-goodrelations-ontology-1535287

Overview article on Semantic Universe:
http://www.semanticuniverse.com/articles-semantic-web-based-e-commerce-webmasters-get-ready.html

Project page:
http://purl.org/goodrelations/

Resources for developers:
http://www.ebusiness-unibw.org/wiki/GoodRelations

Tutorial materials:
CEC'09 2009 Tutorial: The Web of Data for E-Commerce: A Hands-on 
Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey

http://www.ebusiness-unibw.org/wiki/Web_of_Data_for_E-Commerce_Tutorial_IEEE_CEC%2709

ANN: GoodRelations Annotator 2.0 + New Webcast

2009-11-13 Thread Martin Hepp (UniBW) 

Dear all:

We are happy to release a significantly improved version of the 
GoodRelations Annotator, a tool that helps any business in the world to 
create a rich description of its line of business, opening hours, 
payment options, and the like in RDF.


The new version creates a handy RDFa snippet of the data. Now, it is 
sufficient to copy and paste that snippet right before the closing 
"body" elements of the main Web page. This will work for anybody who can 
see and access a page's source code,i.e. even in Content Management 
Systems or Wikis, etc.


To our knowledge, this is the easiest approach of creating rich business 
descriptions for the Web of Linked Data.


Please check it out! And please spread the word to any site owner in 
your address book:


http://www.ebusiness-unibw.org/tools/goodrelations-annotator/

A step-by-step tutorial of 13 minutes complements the tool and is 
available at


http://vimeo.com/7583816

By the way, once you will have published respective meta-data, you can 
check the improved appearance in future search engines immediately using the


http://igoogr.appspot.com/

application.

Simply enter search terms that will bring up the respective page among 
the top five hits in Google, and you will see the effect of 
GoodRelations within seconds.


Best wishes

Martin Hepp


--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  h...@ebusiness-unibw.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
 http://www.heppnetz.de/ (personal)
skype:   mfhepp
twitter: mfhepp

Check out GoodRelations for E-Commerce on the Web of Linked Data!
=

Project page:
http://purl.org/goodrelations/

Resources for developers:
http://www.ebusiness-unibw.org/wiki/GoodRelations

Webcasts:
Overview - http://www.heppnetz.de/projects/goodrelations/webcast/
How-to   - http://vimeo.com/7583816

Recipe for Yahoo SearchMonkey:
http://www.ebusiness-unibw.org/wiki/GoodRelations_and_Yahoo_SearchMonkey

Talk at the Semantic Technology Conference 2009:
"Semantic Web-based E-Commerce: The GoodRelations Ontology"
http://www.slideshare.net/mhepp/semantic-webbased-ecommerce-the-goodrelations-ontology-1535287

Overview article on Semantic Universe:
http://www.semanticuniverse.com/articles-semantic-web-based-e-commerce-webmasters-get-ready.html

Tutorial materials:
ISWC 2009 Tutorial: The Web of Data for E-Commerce in Brief: A Hands-on 
Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey

http://www.ebusiness-unibw.org/wiki/Web_of_Data_for_E-Commerce_Tutorial_ISWC2009
<>

Re: Ontology Wars? Concerned

2009-11-23 Thread Martin Hepp (UniBW) 
There are lots of trade-offs when designing an ontology, e.g. 
specificity vs. size of the target user community - this has e.g. been 
discussed in


Hepp, Martin: Possible Ontologies: How Reality Constrains the 
Development of Relevant Ontologies, in: IEEE Internet Computing, Vol. 
11, No. 1, pp. 90-96, Jan-Feb 2007.


A PDF is at

http://www.heppnetz.de/files/IEEE-IC-PossibleOntologies-published.pdf

Martin


Paul Houle wrote:

On Wed, Nov 18, 2009 at 2:23 PM, Nathan  wrote:

  

I'm finding the path to entry in to the linked open data world rather
difficult and confusing, and only for one specific reason - ontologies;
it /feels/ like there are some kind of ontology wars going on and I can
never get a definitive clear answer.




An ontology war is preferable to the alternative:  the "one ring" that rules
them all.

If you're trying to develop an ontology for topic X,  it's usually easy to
make one that's good but obviously not perfect:  let's say, 95% correct.

You need to cross an "uncanny valley" in the attempt to go from 95% to 100%,
 and often things get worse rather than better.  This is one of the reasons
why Cyc is perceived as a failure:  although it was trying to model the
"common sense" knowledge that we all share,  the actual structures in Cyc
that try to represent everything in a consistent way are bizzare,
 counterintuitive and certainly not representative of how people think,  no
matter how correct they may be.

People don't have a completely consistent taxonomy of the world either;
 they have models of different parts of reality that they'll mesh when they
need to mesh them.  My 94% correct version of topic X might be great for
what I'm doing w/ topic X and your 96% version is great for what you're
doing.  Trying to build one system that's perfect might result in something
that's not as good for what we're doing...  But in the long term we do need
tools that let us mesh these easily.

SPARQL + OWL can take us part of the way in that direction,  but really,  we
need something better in that direction,  largely because of the many
"almost the same as" relationships that are out there...

  


--
--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  h...@ebusiness-unibw.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
http://www.heppnetz.de/ (personal)
skype:   mfhepp 
twitter: mfhepp


Check out GoodRelations for E-Commerce on the Web of Linked Data!
=

Project page:
http://purl.org/goodrelations/

Resources for developers:
http://www.ebusiness-unibw.org/wiki/GoodRelations

Webcasts:
Overview - http://www.heppnetz.de/projects/goodrelations/webcast/
How-to   - http://vimeo.com/7583816

Recipe for Yahoo SearchMonkey:
http://www.ebusiness-unibw.org/wiki/GoodRelations_and_Yahoo_SearchMonkey

Talk at the Semantic Technology Conference 2009: 
"Semantic Web-based E-Commerce: The GoodRelations Ontology"

http://www.slideshare.net/mhepp/semantic-webbased-ecommerce-the-goodrelations-ontology-1535287

Overview article on Semantic Universe:
http://www.semanticuniverse.com/articles-semantic-web-based-e-commerce-webmasters-get-ready.html

Tutorial materials:
ISWC 2009 Tutorial: The Web of Data for E-Commerce in Brief: A Hands-on Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey 
http://www.ebusiness-unibw.org/wiki/Web_of_Data_for_E-Commerce_Tutorial_ISWC2009

ANN: New GoodRelations and Generic RDF/RDFa Tools

2009-12-11 Thread Martin Hepp (UniBW) 

(Apologies for cross-posting)

Dear all:

In the past year, we released a lot of tools in the context of the
GoodRelations vocabulary (http://purl.org/goodrelations/) that may be of
wider interest. All tools are available on-line and most are also
released as sourcecode under LPGL.

1. Generic Tools

a) RDF2DataRSS:
===
Yahoo accepts RDF only as either RDFa embedded into existing Web pages
or via their proprietary DataRSS feed format. The RDF2DataRSS tool turns
any RDF data submitted as RDF/XML or Turtle/N3 into such Yahoo feeds and
can be used to submit RDF/XML into Yahoo's SearchMonkey index.

http://www.ebusiness-unibw.org/tools/rdf2datarss/

b) RDF2RDFa converter:
==
This tool creates handy snippets of invisible RDFa from RDF/XML content
such that the RDF can be pasted easily into any existing page without
hard-wiring it with the HTML page mark-up.

http://www.ebusiness-unibw.org/tools/rdf2rdfa/

2. Tools for Creating GoodRelations Data

a) Google Product Feed Converter:
=
Many shops are already exposing their product and price information in
one of the proprietary Google feed formats (RSS 1.0, 2.0 / CSV-based).
With our tool, you can generate GoodRelations RDF/XML data from that
data. That can be particularly interesting for adding RDF export to
existing shops easily.

http://www.ebusiness-unibw.org/tools/google-product-feed-converter/

b) BMEcat2GoodRelations converter:
==
BMEcat is a popular XML Schema Definition (and DTD) for exchanging
catalog data between enterprises in B2B settings. Many PIM, shop, and
ERP software packages can create BMEcat XML documents. This tool
transforms a BMEcat catalog into a GoodRelations-variant in RDF/XML.
It can reuse / preserve more features than any other tool.

http://www.ebusiness-unibw.org/tools/bmecat2goodrelations/

By the way, a free tool for creating BMEcat catalogs is at
http://www.eclass.de/user/software/democat_2_0.zip (in German only,
unfortunately).

c) GoodRelations Annotator:
===
A straightforward form-based Web application that creates a detailed
company / business profile in RDFa and RDF/XML.

http://www.ebusiness-unibw.org/tools/goodrelations-annotator/

d) Plug-ins / Extensions for Shop Software:
===
   * osCommerce Shop Software:
 http://code.google.com/p/goodrelations-for-oscommerce/

   * Joomla/Virtuemart CMS/Shop combo:
 http://code.google.com/p/goodrelations-for-joomla/

   * Magento shop software:
 Contact Uwe Stoll, http://www.semantium.de/ (demo shop at
http://www.la-mousson.de/)

3. GoodRelations-compliant Domain Ontologies for Vertical Industries

a) ClassOWL 5.1.4 Products and Services Ontology

   * OWL or HTML: http://www.ebusiness-unibw.org/ontologies/eclass/5.1.4/
 (Warning: The file is very large - 38.3 MB for RDF/XML and 71.8 MB
for HTML):

   * ZIP: OWL+HTML:
http://www.ebusiness-unibw.org/ontologies/eclass/5.1.4/eclass_514en.zip
 (eClassOWL 5.1.4 ontology and documentation, compressed  - OWL +
HTML, zip, 4.7 MB):

b) freeClassOWL - Ontology of Construction and Building Materials
=
   * http://www.freeclass.eu/freeclass_v1
 (add .html / .owl if content negotiation should fail)

c) Consumer Electronics Ontology (CEO)
==
   * http://www.ebusiness-unibw.org/ontologies/consumerelectronics/v1
 (add .html / .owl if content negotiation should fail)

3. Applications for Inspecting and Consuming GoodRelations Data

a) iGoogr: "Imagine Google was using the GoodRelations vocabulary for
e-commerce"
=
A quick demo of how Google search results could be improved by
GoodRelations meta-data; also useful for inspecting your own page,
because it fetches and parses RDFa in real-time.

http://igoogr.appspot.com/

b) GoodRelations Statistics
===
A tool that collects and exposes detailed data on the popularity of
GoodRelations elements in the wild (with RDFa export of the stats!).

http://goodrelations-stats.appspot.com/

c) GoodRelations Validator (alpha)
==
A tool that spots semantic inconsistencies in GoodRelations data beyond
the axioms of the ontology.

http://www.ebusiness-unibw.org/tools/goodrelations-validator/

Much more is on our agenda for 2010, so please stay tuned by
   * bookmarking http://www.ebusiness-unibw.org/wiki/GoodRelations and
   * subscribing to
http://ebusiness-unibw.org/cgi-bin/mailman/listinfo/goodrelations .

Best wishes

Martin Hepp

--
--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  h...@ebusiness-unibw.org
phone:   +49-(0)89-6004-4217
fax: +

Re: Generate RDFa with Epiphany

2009-12-28 Thread Martin Hepp (UniBW) 

Hi Benjamin,
Nice - can you create GoodRelations (http://purl.org/goodrelations/) 
patterns in RDFa for existing shop pages, e.g. identify price and 
product information?
Just spotting the product name, description, EAN/UPC code, and price 
would already very valuable.


Best
Martin


PS: Did you see the Amazon sponger data, e.g. at

http://linkeddata.uriburner.com/about/html/http://linkeddata.uriburner.com/about/id/entity/http/www.amazon.com/exec/obidos/ASIN/0596518552



Benjamin Adrian wrote:

Hi everyone!

Let me introduce the RDFa annotator Epiphany:

It uses configurable domain-specific Linked Data to enrich web pages 
with RDFa annotation, automatically.
These annotations link text passages to instances inside the Linked 
Data model.
Hovering an annotation with your mouse opens a lighting box with 
additional information from the RDF graph behind the instance's HTTP URI.


Epiphany runs at: http://projects.dfki.uni-kl.de/epiphany/
On the top right you'll find an example.

Under http://projects.dfki.uni-kl.de/epiphany/form, you can write your 
own text and receive RDFa content.


Currently, the underlying Linked Data model is a subset of DBpedia 
covering German politics.
In later versions you will be able to upload or link your own Linked 
Data model to annotate web pages with your own domain specific RDFa.


Please don't hesitate in giving me your comments :). Twitter hashtag 
is #RDFEPIPHANY


Regards
Ben



--
--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  h...@ebusiness-unibw.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
http://www.heppnetz.de/ (personal)
skype:   mfhepp 
twitter: mfhepp


Check out GoodRelations for E-Commerce on the Web of Linked Data!
=

Project page:
http://purl.org/goodrelations/

Resources for developers:
http://www.ebusiness-unibw.org/wiki/GoodRelations

Webcasts:
Overview - http://www.heppnetz.de/projects/goodrelations/webcast/
How-to   - http://vimeo.com/7583816

Recipe for Yahoo SearchMonkey:
http://www.ebusiness-unibw.org/wiki/GoodRelations_and_Yahoo_SearchMonkey

Talk at the Semantic Technology Conference 2009: 
"Semantic Web-based E-Commerce: The GoodRelations Ontology"

http://www.slideshare.net/mhepp/semantic-webbased-ecommerce-the-goodrelations-ontology-1535287

Overview article on Semantic Universe:
http://www.semanticuniverse.com/articles-semantic-web-based-e-commerce-webmasters-get-ready.html

Tutorial materials:
ISWC 2009 Tutorial: The Web of Data for E-Commerce in Brief: A Hands-on Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey 
http://www.ebusiness-unibw.org/wiki/Web_of_Data_for_E-Commerce_Tutorial_ISWC2009

Re: [Freebase-experts] ISBNs, owl:sameAs, etc

2010-01-04 Thread Martin Hepp (UniBW) 

dear all:
quite clearly, a book title is not the same as a book, and if the linked 
data community continues to link apples and oranges via owl:sameAs then 
either


- the socially agreed meaning owl:sameAs is being degraded to untyped 
href in HTML

or
-  vast amount of data in the linked data cloud turns useless

but as a minimum precaution against spoiling the graph of data, put your 
sameAs statements into separate graphs so that meaningful applications 
can filter them out easily.


best

martin

Kingsley Idehen wrote:

Daniel O'Connor wrote:



On Tue, Dec 29, 2009 at 6:02 PM, Tom Morris > wrote:


But is the description of the book (ie Freebase topic) really the 
same

thing as the book?

Assuming it was, wouldn't you not only have to make the sameAs
assertions and publish them someplace, but also get them loaded into
sameas.org ?

Tom

On Tue, Dec 29, 2009 at 1:35 AM, Shawn Simister
mailto:narphor...@gmail.com>> wrote:
> Are you just looking for a script that can make the 'same as'
assertions
> like this?
>
> http://rdfbooks.freebaseapps.com/ns/soft.isbn.9780670063260.best
>


Ah hah!

Now how to (nicely) get that indexed...

Make a linkset and publish it via:

1. A data dump
2. SPARQL endpoint
3. Your Linked Data Space .

Then you have your index, and others can make their variants by 
meshing their data with yours :-)


Re. DBpedia, we can add the linkset to its own Named Graph as we've 
done with other linksets.




--
--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  h...@ebusiness-unibw.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
http://www.heppnetz.de/ (personal)
skype:   mfhepp 
twitter: mfhepp


Check out GoodRelations for E-Commerce on the Web of Linked Data!
=

Project page:
http://purl.org/goodrelations/

Resources for developers:
http://www.ebusiness-unibw.org/wiki/GoodRelations

Webcasts:
Overview - http://www.heppnetz.de/projects/goodrelations/webcast/
How-to   - http://vimeo.com/7583816

Recipe for Yahoo SearchMonkey:
http://www.ebusiness-unibw.org/wiki/GoodRelations_and_Yahoo_SearchMonkey

Talk at the Semantic Technology Conference 2009: 
"Semantic Web-based E-Commerce: The GoodRelations Ontology"

http://www.slideshare.net/mhepp/semantic-webbased-ecommerce-the-goodrelations-ontology-1535287

Overview article on Semantic Universe:
http://www.semanticuniverse.com/articles-semantic-web-based-e-commerce-webmasters-get-ready.html

Tutorial materials:
ISWC 2009 Tutorial: The Web of Data for E-Commerce in Brief: A Hands-on Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey 
http://www.ebusiness-unibw.org/wiki/Web_of_Data_for_E-Commerce_Tutorial_ISWC2009

Re: Generate RDFa with Epiphany

2010-01-07 Thread Martin Hepp (UniBW) 

Dear Benjamin,
Excellent! If you want me to review any of the resulting patters, please 
just send me the URI of a sample result.


For training the system, it's maybe better to use a native reference 
data set, e.g. this one:


   http://www.ebusiness-unibw.org/wiki/Rdfa4google

By the way, you can also use the GoodRelations Validator (beta) to check 
your output


   http://www.ebusiness-unibw.org/tools/goodrelations-validator/

It runs about 20 queries (and counting ;-) against the data. It accepts 
and RDFa or RDF/XML resource with GoodRelations data.


Best wishes

Martin

Benjamin Adrian wrote:

Dear Martin,

The RDF extraction service SCOOBIE behind Epiphany can be configured 
or let's say trained with any RDF model that describes a certain domain.
I'm working on extedning the Epiphany web service to let user define 
which model (even their own) to take for annotating web pages with 
Epiphany.


So, to support Good Relations, we just will have to give it an RDF 
model such as it is available at the Amazon sponger data.
But beside Epiphany I will try to configure SCOOBIE  with a small 
GoodRelations training set in the next days and keep you up-to-date.


Best regards,

Ben

Martin Hepp (UniBW) schrieb:

Hi Benjamin,
Nice - can you create GoodRelations (http://purl.org/goodrelations/) 
patterns in RDFa for existing shop pages, e.g. identify price and 
product information?
Just spotting the product name, description, EAN/UPC code, and price 
would already very valuable.


Best
Martin


PS: Did you see the Amazon sponger data, e.g. at

http://linkeddata.uriburner.com/about/html/http://linkeddata.uriburner.com/about/id/entity/http/www.amazon.com/exec/obidos/ASIN/0596518552 





Benjamin Adrian wrote:

Hi everyone!

Let me introduce the RDFa annotator Epiphany:

It uses configurable domain-specific Linked Data to enrich web pages 
with RDFa annotation, automatically.
These annotations link text passages to instances inside the Linked 
Data model.
Hovering an annotation with your mouse opens a lighting box with 
additional information from the RDF graph behind the instance's HTTP 
URI.


Epiphany runs at: http://projects.dfki.uni-kl.de/epiphany/
On the top right you'll find an example.

Under http://projects.dfki.uni-kl.de/epiphany/form, you can write 
your own text and receive RDFa content.


Currently, the underlying Linked Data model is a subset of DBpedia 
covering German politics.
In later versions you will be able to upload or link your own Linked 
Data model to annotate web pages with your own domain specific RDFa.


Please don't hesitate in giving me your comments :). Twitter hashtag 
is #RDFEPIPHANY


Regards
Ben








--
--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  h...@ebusiness-unibw.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
http://www.heppnetz.de/ (personal)
skype:   mfhepp 
twitter: mfhepp


Check out GoodRelations for E-Commerce on the Web of Linked Data!
=

Project page:
http://purl.org/goodrelations/

Resources for developers:
http://www.ebusiness-unibw.org/wiki/GoodRelations

Webcasts:
Overview - http://www.heppnetz.de/projects/goodrelations/webcast/
How-to   - http://vimeo.com/7583816

Recipe for Yahoo SearchMonkey:
http://www.ebusiness-unibw.org/wiki/GoodRelations_and_Yahoo_SearchMonkey

Talk at the Semantic Technology Conference 2009: 
"Semantic Web-based E-Commerce: The GoodRelations Ontology"

http://www.slideshare.net/mhepp/semantic-webbased-ecommerce-the-goodrelations-ontology-1535287

Overview article on Semantic Universe:
http://www.semanticuniverse.com/articles-semantic-web-based-e-commerce-webmasters-get-ready.html

Tutorial materials:
ISWC 2009 Tutorial: The Web of Data for E-Commerce in Brief: A Hands-on Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey 
http://www.ebusiness-unibw.org/wiki/Web_of_Data_for_E-Commerce_Tutorial_ISWC2009

Re: [Freebase-experts] ISBNs, owl:sameAs, etc

2010-01-07 Thread Martin Hepp (UniBW) 

hi ross,
apologies for the delay!

as long as both URIs represent a book title, i have no objections.

my comment was a rather generic warning - URNs and "non-URN URIs" can of 
course be linked by owl:sameAs.


intelligence of a human or machine agent depends on the subtleness and 
quality of that agent's category system. if everything is sameAs to lots 
of other things, then the amount of intelligent conclusions you can draw 
from the LOD cloud will be limited.


best
martin



Ross Singer wrote:

Martin,

Given that there's apparently considerable disagreement here (and
probably plenty of confusion), can you elaborate on what exactly you
object to in this request?

The first objection I saw raised was by Tom Morris ("is a FreeBase
topic really a book?") and agree that urn:isbn:9780670063260 is not
the same thing as http://rdf.freebase.com/ns/en.on_the_road.

However, I'm not sure I see that distinction between
urn:isbn:9780670063260 and
http://rdf.freebase.com/ns/soft.isbn.9780670063260.best as they're
both trying to identify an edition (or, loosely, a frbr:Manifestation)
of a work.

My questions would be:
1) If the latter relationship is not a good fit for owl:sameAs, why?
2) if #1 is true, what is a better alternative?

I understand the rationale of not wanting to water down the semantics
of owl:sameAs to the point that it's little more than rdfs:seeAlso
with louder voice.  At the same time, it's difficult to see if your
issue is with a type mismatch between a URN and a URI; how FreeBase
models their data; or general "mutually assured destruction"-ness of
owl:sameAs.

Thanks,
-Ross.

On Mon, Jan 4, 2010 at 4:22 PM, Martin Hepp (UniBW)
 wrote:
  

dear all:
quite clearly, a book title is not the same as a book, and if the linked
data community continues to link apples and oranges via owl:sameAs then
either

- the socially agreed meaning owl:sameAs is being degraded to untyped href
in HTML
or
-  vast amount of data in the linked data cloud turns useless

but as a minimum precaution against spoiling the graph of data, put your
sameAs statements into separate graphs so that meaningful applications can
filter them out easily.

best

martin

Kingsley Idehen wrote:


Daniel O'Connor wrote:
  

On Tue, Dec 29, 2009 at 6:02 PM, Tom Morris mailto:tfmor...@gmail.com>> wrote:

   But is the description of the book (ie Freebase topic) really the same
   thing as the book?

   Assuming it was, wouldn't you not only have to make the sameAs
   assertions and publish them someplace, but also get them loaded into
   sameas.org <http://sameas.org>?

   Tom

   On Tue, Dec 29, 2009 at 1:35 AM, Shawn Simister
   mailto:narphor...@gmail.com>> wrote:
   > Are you just looking for a script that can make the 'same as'
   assertions
   > like this?
   >
   > http://rdfbooks.freebaseapps.com/ns/soft.isbn.9780670063260.best
   >


Ah hah!

Now how to (nicely) get that indexed...


Make a linkset and publish it via:

1. A data dump
2. SPARQL endpoint
3. Your Linked Data Space .

Then you have your index, and others can make their variants by meshing
their data with yours :-)

Re. DBpedia, we can add the linkset to its own Named Graph as we've done
with other linksets.

  

--
--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  h...@ebusiness-unibw.org
phone:   +49-(0)89-6004-4217
fax: +49-(0)89-6004-4620
www: http://www.unibw.de/ebusiness/ (group)
   http://www.heppnetz.de/ (personal)
skype:   mfhepp twitter: mfhepp

Check out GoodRelations for E-Commerce on the Web of Linked Data!
=

Project page:
http://purl.org/goodrelations/

Resources for developers:
http://www.ebusiness-unibw.org/wiki/GoodRelations

Webcasts:
Overview - http://www.heppnetz.de/projects/goodrelations/webcast/
How-to   - http://vimeo.com/7583816

Recipe for Yahoo SearchMonkey:
http://www.ebusiness-unibw.org/wiki/GoodRelations_and_Yahoo_SearchMonkey

Talk at the Semantic Technology Conference 2009: "Semantic Web-based
E-Commerce: The GoodRelations Ontology"
http://www.slideshare.net/mhepp/semantic-webbased-ecommerce-the-goodrelations-ontology-1535287

Overview article on Semantic Universe:
http://www.semanticuniverse.com/articles-semantic-web-based-e-commerce-webmasters-get-ready.html

Tutorial materials:
ISWC 2009 Tutorial: The Web of Data for E-Commerce in Brief: A Hands-on
Introduction to the GoodRelations Ontology, RDFa, and Yahoo! SearchMonkey
http://www.ebusiness-unibw.org/wiki/Web_of_Data_for_E-Commerce_Tutorial_ISWC2009








  


--
--
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  h...@eb