Steve Harris wrote:
On 20 May 2009, at 16:38, Kingsley Idehen wrote:
Steve Harris wrote:
Alternatively you could put that data in a RDF store, and just serve
up the fragments using a wrapped CONSTRUCT query.
That's what we do for qdos.com, eg
http://qdos.com/user/Steve-Harris/18b6f60b41e05aaa418565ebfe901d6b/rdfxml
and it's pretty efficient, more efficient that storing 1000 separate
files as XML.
The downside is that the RDF is not very pretty to look at, but it
could be with a better RDF/XML serialiser.
- Steve
Steve,
The data is already in an RDF Store. Of course, you can add yours
etc. :-)
Martin should have sent links like:
1. http://tr.im/lThV -- the whole ontology
2. http://tr.im/lTiC -- sampling of Products or Service Model
instance data
Cool, how do I for eg. get the immediate data around
http://openean.kaufkauf.net/id/EanUpc_0001067792600 out? It's not
obvious how you request it.
Do I just issue SPARQL to somewhere? The SPARQL link at the bottom
goes to a page about SPARQL.
I poked around for a bit and tried
http://lod.openlinksw.com/sparql?query=DESCRIBE+%3Chttp%3A%2F%2Fopenean.kaufkauf.net%2Fid%2FEanUpc_0001067792600%3E&output=n3
but it gives an error, so I'm not sure what I did wrong.
Steve,
Still hot staging a few things. Nothing wrong with your command, we just
need to complete some data re-organization work on this particular instance.
Check back in a day or so :-)
Also, we are adding this Linked Commerce Data to the LOD cloud, so do
expect a published dump for the static data from this emerging space.
Re. new data about new business entities, check PingTheSemantic Web .
Kingsley
- Steve
On 20 May 2009, at 14:59, Martin Hepp (UniBW) wrote:
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_<UPC/EAN>
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: [email protected]
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!
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Webcast explaining the Web of Data for E-Commerce:
-------------------------------------------------
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Tool for registering your business:
----------------------------------
http://www.ebusiness-unibw.org/tools/goodrelations-annotator/
Overview article on Semantic Universe:
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Full-day tutorial at ESWC 2009: The Web of Data for E-Commerce in
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Talk at the Semantic Technology Conference 2009: Semantic Web-based
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http://www.semantic-conference.com/session/1881/
<martin_hepp.vcf>
--
Regards,
Kingsley Idehen Weblog: http://www.openlinksw.com/blog/~kidehen
President & CEO OpenLink Software Web: http://www.openlinksw.com
--
Regards,
Kingsley Idehen Weblog: http://www.openlinksw.com/blog/~kidehen
President & CEO
OpenLink Software Web: http://www.openlinksw.com
