Re: ANN: GoodRelations - E-Commerce on the Web of Data - New Datasets and Applications

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: mhepp@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:
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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/