- 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 09:19:19 UTC