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
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: 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.vcf>
--
Steve Harris
Garlik Limited, 2 Sheen Road, Richmond, TW9 1AE, UK
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