Re: Linked Data in enterprises/industries studys

2016-01-20 Thread Alfredo Serafini
> If you are also aware of something like that, I would be highly interested. > > > > Best, > > Peter > > > > *Von:* Alfredo Serafini [mailto:ser...@gmail.com] > *Gesendet:* Mittwoch, 20. Jänner 2016 15:40 > *An:* Wetz Peter > *Cc:* public-lod@w3.org > *B

Re: Linked Data in enterprises/industries studys

2016-01-20 Thread Alfredo Serafini
Hi what about this? http://www.opendata500.com/ some of the data should be about linked data in particular (maybe it's possible to contact organizers to have access on their data?) 2016-01-20 15:15 GMT+01:00 Wetz Peter : > Dear all, > > > > in the PROPEL project we try

Re: Are there any datasets about companies? ( DBpedia Open Data Initiative)

2015-11-03 Thread Alfredo Serafini
Hi I love the idea! thanks for sharing (I see references to opencorporates, but it uses an API if I'm not wrong? http://api.opencorporates.com/) how can someone contribute, apart from suggestiong new sources? (Sadly in Italy I can hardly we still lack an open index of companies, and what we

Re: Announcing KIBI a Data Intelligence platform (with some "semantic web")

2015-09-21 Thread Alfredo Serafini
wow, it seems a great work! :-) I'll try it as soon as I can, thank you for sharing 2015-09-21 15:56 GMT+02:00 Giovanni Tummarello : > Dear all > > we at Siren Solutions are very happy to announce today Kibi an Open Source > Data Intelligence platform for "Data

Re: Pay-As-You-Go DBpedia+Virtuoso AMI in Amazon Cloud

2015-08-10 Thread Alfredo Serafini
sounds great! seems like links 1 and 3 aren't working at the moment! 2015-08-10 18:16 GMT+02:00 Ted Thibodeau Jr tthibod...@openlinksw.com: Hello, Everyone -- Expanding our Pay-As-You-Go (PAGO) offerings of Virtuoso on the Amazon EC2 Cloud, the pre-configured and pre-loaded Virtuoso +

Re: Pay-As-You-Go DBpedia+Virtuoso AMI in Amazon Cloud

2015-08-10 Thread Alfredo Serafini
ok thank you, now they are working! :-) 2015-08-10 19:31 GMT+02:00 Ted Thibodeau Jr tthibod...@openlinksw.com: On Aug 10, 2015, at 12:33 PM, Alfredo Serafini ser...@gmail.com wrote: sounds great! seems like links 1 and 3 aren't working at the moment! They are working fine for me

Re: UK Open Data data vignette

2015-08-04 Thread Alfredo Serafini
really nice indeed! I hope we will be able to do something similar here in Italy too :-) Alfredo 2015-08-04 18:00 GMT+02:00 Kingsley Idehen kide...@openlinksw.com: On 8/4/15 11:35 AM, Hugh Glaser wrote: The ODI (http://theodi.org) has published a research report, Research: Open data means

Re: Virtuoso updated to version 7.2.1

2015-07-01 Thread Alfredo Serafini
Hi nice work! Are there already examples on how to use the compiled regular expressions? Alfredo PS: Are there any plans to publish the java components on maven central? Since maven is a de-facto standard for Java world, this could be very helpful too. I've created a small pull request last

Re: [Ann] QueryVOWL

2015-06-11 Thread Alfredo Serafini
I like very much the perspective of QueryVOWL, it seems to be very intuitive and useful. If I can suggest: it could be great to have an export function to create a (live or static) standalone graph visualization, to be embedded elsewhere, a sort of VOWL-lite derived from the editing with QueryOWL.

Re: How do you explore a SPARQL Endpoint?

2015-01-22 Thread Alfredo Serafini
Hi the most basic query is the usual query for concepts, something like: SELECT DISTINCT ?concept WHERE { ?uri a ?concept. } then, given a specific concept, you can infer from the data what are the predicates/properties for it: SELECT DISTINCT ?prp WHERE { [] ?prp a-concept. } and so on...

Re: linked open data and PDF

2015-01-19 Thread Alfredo Serafini
... 2015-01-20 0:58 GMT+01:00 Alfredo Serafini ser...@gmail.com: Hi from PDFbox there are indeed chances to extract metadata (if I'm not wrong the API are the same used inside Tika [1], which is largely adopted for indexing out of the box, for example in the Solr context). Metadata are simple name

Re: linked open data and PDF

2015-01-19 Thread Alfredo Serafini
Hi from PDFbox there are indeed chances to extract metadata (if I'm not wrong the API are the same used inside Tika [1], which is largely adopted for indexing out of the box, for example in the Solr context). Metadata are simple name/value pairs in this context, but it's simple to map them

Re: [Ann] WebVOWL 0.3 - Visualize your ontology on the web

2014-12-20 Thread Alfredo Serafini
great work, I like it! :-) any plans for integrating individuals visualization? 2014-12-19 17:57 GMT+01:00 Kingsley Idehen kide...@openlinksw.com: On 12/19/14 10:49 AM, Steffen Lohmann wrote: Hi all, we are glad to announce the release of WebVOWL 0.3, which integrates our OWL2VOWL

Re: Debates of the European Parliament as LOD

2014-11-06 Thread Alfredo Serafini
great! :-) 2014-11-06 11:31 GMT+01:00 Ruben Verborgh ruben.verbo...@ugent.be: Dear Laura, all, Thanks for publishing this dataset under an open license, this is a great example of the power of Linked Data! We have made the dataset available as triple pattern fragments under the following

Re: Debates of the European Parliament as LOD

2014-11-05 Thread Alfredo Serafini
Great! :-) unfortunately all the services are currently down :-( 2014-11-05 12:19 GMT+01:00 Hollink, L. l.holl...@vu.nl: - Dataset announcement - We are happy to announce the release of a new linked dataset: the proceedings of the plenary debates of the European Parliament as

Re: Debates of the European Parliament as LOD

2014-11-05 Thread Alfredo Serafini
this data regularly with new debates? Kind regards, Pieter [1] Check e.g., http://linkeddatafragments.org or host data dumps on a CDN On 2014-11-05 12:45, Alfredo Serafini wrote: Great! :-) unfortunately all the services are currently down :-( 2014-11-05 12:19 GMT+01:00 Hollink, L. l.holl

Re: Question about DBPedia 3.9's OWL file.

2014-07-15 Thread Alfredo Serafini
Hi here is a discussion which may be of interest: http://answers.semanticweb.com/questions/12166/dbpedia-ontology-property-vs-dbpedia-property moreover: http://mappings.dbpedia.org/server/ontology/classes/ however if the goal is to find what is the property actually used on data instances in

Re: Question about DBPedia 3.9's OWL file.

2014-07-15 Thread Alfredo Serafini
://dbpedia.org/ontology/age' relations or a number of other /ontology/* property relations in the .nq files from http://downloads.dbpedia.org/3.9/en/. Best regards, Tim. On 7/15/14, 3:24 PM, Alfredo Serafini wrote: Hi here is a discussion which may be of interest: http

Re: Ann: VOWL 2, ProtegeVOWL, WebVOWL

2014-05-12 Thread Alfredo Serafini
do you plan to release it for generale usage and integration on live services? 2014-05-12 19:27 GMT+02:00 Alfredo Serafini ser...@gmail.com: wonderful!! :-) 2014-05-12 17:30 GMT+02:00 Kingsley Idehen kide...@openlinksw.com: On 5/12/14 11:04 AM, Steffen Lohmann wrote: Hi all, we

Re: Ann: VOWL 2, ProtegeVOWL, WebVOWL

2014-05-12 Thread Alfredo Serafini
wonderful!! :-) 2014-05-12 17:30 GMT+02:00 Kingsley Idehen kide...@openlinksw.com: On 5/12/14 11:04 AM, Steffen Lohmann wrote: Hi all, we are glad to announce that version 2.0 of the Visual Notation for OWL Ontologies (VOWL) has been published a few weeks ago. Along with the

Re: LOD cloud diagram ?

2014-05-05 Thread Alfredo Serafini
Hi If the point is querying to produce live visualizations, ando not only static images, CSV can be used under certain conditions (with very small modifications) to represent a stream of triples, serialized in N-TRIPLES. This may be useful to simplify progressive querying (which will happened

Re: Generate LOD cloud diagram image

2014-04-21 Thread Alfredo Serafini
nice work Luca! :-) 2014-04-22 0:39 GMT+02:00 Luca Matteis lmatt...@gmail.com: Since I don't even have OmniGraffle I decided to spend the weekend and come up with a pure JavaScript/CSS3 solution: http://lmatteis.github.io/void-graph/ (yes also the arrows are CSS) Perhaps this can be a

Re: DBLP Sparql Endpoint

2014-04-04 Thread Alfredo Serafini
Hi for me seems to work, for example using instead: SELECT DISTINCT * WHERE { ?a a foaf:Agent . ?a foaf:name ?n . FILTER regex(?n, '^(.+\\s+)*b', 'i') } LIMIT 10 I obtain as the first threee results the following ones: (Zhou) Bryan Bai A-Reum Bae A. A. (Louis) Beex If you want to work with

Re: DBLP Sparql Endpoint

2014-04-04 Thread Alfredo Serafini
function instead of a REGEX. Can give a small perf increase. Regards, Jerven On 04 Apr 2014, at 11:34, Alfredo Serafini ser...@gmail.com wrote: Hi for me seems to work, for example using instead: SELECT DISTINCT * WHERE { ?a a foaf:Agent . ?a foaf:name ?n . FILTER regex(?n, '^(.+\\s

Re: DBLP Sparql Endpoint

2014-04-04 Thread Alfredo Serafini
SPARQL-Endpoints for papers/publications, besides this one and Rkbexplorer? Rkbexplorer has its own URI for each author of each paper, so there are a lot of duplicates, which is not useful for my case. Best regards and thanks for your advice, Peter *Von:* Alfredo Serafini [mailto:ser

Re: DBLP Sparql Endpoint

2014-04-04 Thread Alfredo Serafini
:* Alfredo Serafini [mailto:ser...@gmail.com] *Gesendet:* Freitag, 04. April 2014 14:35 *An:* Wetz Peter *Cc:* public-lod@w3.org *Betreff:* Re: DBLP Sparql Endpoint uhm, maybe some configuration limit on the server? SELECT COUNT(?a) WHERE { ?a a foaf:Agent . ?a foaf:name ?n

Re: DBLP Sparql Endpoint

2014-04-04 Thread Alfredo Serafini
seems like there is some kind of server side config limit 2014-04-04 15:32 GMT+02:00 Wetz Peter peter.w...@tuwien.ac.at: Hi! Thanks for your detailed reply and suggestions. But look at this query, which proves that there are indeed authors starting with ‘B’ at this endpoint:

Re: DBLP Sparql Endpoint

2014-04-04 Thread Alfredo Serafini
/ On 4 Apr 2014, at 14:59, Alfredo Serafini ser...@gmail.com wrote: seems like there is some kind of server side config limit 2014-04-04 15:32 GMT+02:00 Wetz Peter peter.w...@tuwien.ac.at: Hi! Thanks for your detailed reply and suggestions. But look at this query, which proves

Re: Linked Data Fragments: Web-scale querying

2014-03-22 Thread Alfredo Serafini
We can use libraries to avoid boilerplate. An HTML form is the standard way to represent hypermedia controls in HTML. Parsing an HTML form is straightforward; if Hydra becomes the (de-facto) standard way to represent hypermedia controls in RDF, then parsing it will also be straightforward.

Re: Shortlist of literature on semantic web and linked data

2014-02-13 Thread Alfredo Serafini
Hi this is some suggestion of free books/presentations: http://linkeddatabook.com/editions/1.0/ http://www.semantic-web.at/LOD-TheEssentials.pdf http://www.cs.toronto.edu/~oktie/slides/web-of-data-intro.pdf http://www.daml.org/meetings/2005/04/pi/Ontologies.pdf and

Re: HTTPS for RDF URIs?

2014-01-31 Thread Alfredo Serafini
Hi all regarding opaque uri: maybe a difference in the scheme could be seen as a complementary to a different type extension. If i'm referring for example to the resource http://wiki/page.html or http://wiki/page.rdf i probably expect two different representation on the same resource, from a

Re: HTTPS for RDF URIs?

2014-01-30 Thread Alfredo Serafini
uhm, I have a question about the scheme differences. This could be used maybe to expose the same resource projecting only public values (http) and value accessible to specific user on secure connection? (https) I mean: apart from the fact that we could have different formats, do you think that a

Re: HTTPS for RDF URIs?

2014-01-30 Thread Alfredo Serafini
this is truly simple and yet powerful... my only concern is about how simple is to mantain that? 2014-01-30 Kingsley Idehen kide...@openlinksw.com: On 1/30/14 5:10 PM, Alfredo Serafini wrote: uhm, I have a question about the scheme differences. This could be used maybe to expose the same

Re: LOD publishing question

2014-01-28 Thread Alfredo Serafini
Hi if i'm not wrong sindice etc needs to crawl the endpoint starting from a semantic sitemap, or a VOID / DCAT or similar metadata. As D2RQ provides a default mapping in VOID (if I'm not wrong), maybe you should check the mapping and explicitly extends it writing the files for resources and

Re: Launch of The DataTank 4.0: a data publishing tool

2013-12-05 Thread Alfredo Serafini
Hi Pieter nice work! Do you have plans for integrating also json-ld support? thanks, Alfredo 2013/12/5 Pieter Colpaert pieter.colpa...@okfn.org Hi all, At Open Knowledge Foundation Belgium we have been working for a couple of years on a tool which assists organisations to publish data. It

Re: DOM for RDF?

2013-12-02 Thread Alfredo Serafini
point of view an approach similar to the current implmentation of the Sail interface. My 2 cents Alfredo Serafini 2013/12/2 Richard Light rich...@light.demon.co.uk Hi, I'm sure this has been discussed many times and/or ages ago, but I am struck by the absence of a DOM-like W3C framework

Re: DOM for RDF?

2013-12-02 Thread Alfredo Serafini
i feel we have not to search to go too much on the DOM-like direction, and a good compromise is by the usage of expressive domain language. Just my 2 cents [1] http://www.tinkerpop.com/ 2013/12/2 Richard Light rich...@light.demon.co.uk On 02/12/2013 11:10, Alfredo Serafini wrote: Hi

Re: Hosting Linked Data using PURL.org

2013-07-16 Thread Alfredo Serafini
HI do you mean by hosting and exposing directly static RDFs? In principles it's possible, but i think a minimal linked data server is required at least to take care of url normalization, checking etc. What i mean is that using redirect seems to me a little tricky, even if you plan to use only a

Re: Best way for exposing Linked Open Data. Wrapper vs scrape

2013-05-28 Thread Alfredo Serafini
Given your scenario i'd rather go to the first one. In particular i suggest to proceed in two steps: 1) map your db with d2rq, so you have a sparql endpoint (basically read-only, for most, or i suggest this by the way and exposing api if you want instead writing capabilities). D2RQ gives also a

Re: Modeling the author's position from research papers into RDF graph

2013-05-05 Thread Alfredo Serafini
Hi have you tried using sequences? http://patterns.dataincubator.org/book/ordered-list.html or even: http://infolab.stanford.edu/~stefan/daml/order.html personally i would also add some kind of property which describes the semantics for the attribution order, so it's possible to have in the same

Re: Visualizing Linked Data - did we miss anything?

2013-03-28 Thread Alfredo Serafini
Hi i totally agree on the use of D3.js. What about Linked Data Api adoption? I am currentlly experimenting it in my spare time for provide a visualizer over Elda (i've started some months ago for a project that has an unfortunate end, so i'm trying to proceed with the development on it by myself