GoodRelations is a standardized vocabulary for product, price, and company data that can (1) be embedded into existing static and dynamic Web pages and that (2) can be processed by other computers. This increases the visibility of your products and services in the latest generation of search engines, recommender systems, and other novel applications.
Martin Hepp (UniBW)
martin.hepp at ebusiness-unibw.org
Fri Jul 2 14:11:53 CEST 2010
Dear all:
In general, it's a good habit to always attach a rdfs:label that holds a
human-readable representation of the value to instances of
http://purl.org/goodrelations/v1#QuantitativeValueFloat
http://purl.org/goodrelations/v1#QuantitativeValueInteger
This will make it easier for clients to render such values.
Example:
# Point value
foo:value1
a gr:QuantitativeValueFloat ;
rdfs:label "100 g"
gr:hasValueFloat "100.0"^^xsd:float ;
gr:hasUnitOfMeasurement "GRM"^^xsd:string
# Interval
foo:value2
a gr:QuantitativeValueFloat ;
rdfs:label "10 - 120 g"
gr:hasMaxValueFloat "120.0"^^xsd:float ;
gr:hasMinValueFloat "10.0"^^xsd:float ;
gr:hasUnitOfMeasurement "GRM"^^xsd:string .
The same holds for qualitative values, i.e. instances of
http://purl.org/goodrelations/v1#QualitativeValue
but I assume it's more obvious there, so they will regularly have a
label anyway.
Acknowledgements: Thanks to Seth Russell
(http://twitter.com/sethrussell) for this suggestion.
Best wishes
Martin Hepp
--
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martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen
e-mail: hepp at 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!
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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