- From: Toby Inkster <tai@g5n.co.uk>
- Date: Thu, 04 Jun 2009 10:18:09 +0100
- To: Richard Cyganiak <richard@cyganiak.de>
- Cc: Hugh Glaser <hg@ecs.soton.ac.uk>, Semantic Web <semantic-web@w3.org>, Linked Data community <public-lod@w3.org>, Ian Millard <icm@ecs.soton.ac.uk>
On Thu, 2009-06-04 at 00:54 +0100, Richard Cyganiak wrote: > The general RDF graph has the shape > <U1> owl:sameAs <U1>, <U2>, <U3>, <U4> . Oh yes, another thing: saying the above, with OWL reasoning in place is equivalent to saying: <U1> owl:sameAs <U1>, <U1>, <U1>, <U1> . in a way. For this reason, you might want to consider adding in support for my URI ontology, in which case you'd serve something like this: @prefix owl : <http://www.w3.org/2002/07/owl#> . @prefix uri : <http://purl.org/NET/uri#> . <U1> owl:sameAs <U1> , <U2> , <U3> ; uri:identifier [ a uri:UniformResourceIdentifier ; rdf:value "U1" ] , [ a uri:UniformResourceIdentifier ; rdf:value "U2" ] , [ a uri:UniformResourceIdentifier ; rdf:value "U3" ] . You could even use it to indicate the source of your information. e.g. <U1> uri:identifier [ a uri:UniformResourceIdentifier ; rdf:value "U2" ; ex:accordingTo <http://..../> , <http://..../> ; ex:discoveredByUs "2009-04-05" ] . Harry Halpin's IRW ontology may also be of use, but I've not entirely been able to figure out how it works. It's here: <http://www.ontologydesignpatterns.org/ont/web/irw.owl> -- Toby Inkster <tai@g5n.co.uk>
Received on Thursday, 4 June 2009 09:19:11 UTC