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

From: Martin Hepp (UniBW) <martin.hepp@ebusiness-unibw.org>
Date: Wed, 28 Apr 2010 15:11:03 +0200
Message-ID: <4BD833E7.2000104@ebusiness-unibw.org>
To: "Hondros, Constantine" <Constantine.Hondros@wolterskluwer.com>
CC: "public-lod@w3.org" <public-lod@w3.org>
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:
>
> <div class="description" about="http://www.shopforia.com/" typeof="owl:Ontology">
>     <div rel="owl:imports" resource="http://www.w3.org/2006/vcard/ns"></div>
>     <div rel="owl:imports" resource="http://purl.org/goodrelations/v1"></div>
>
> 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-request@w3.org [mailto:public-lod-request@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=<Category>&ItemPage=<n>   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=<ASIN>, 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:  hepp@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:  hepp@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
Received on Wednesday, 28 April 2010 13:11:37 UTC

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