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/ (personal)
skype: mfhepp
twitter: mfhepp
Check out GoodRelations for E-Commerce on the Web of L