On 1/3/13 11:19 AM, SERVANT Francois-Paul wrote:
Hi,happy new year to all. I imagine this is an old question: what property should be used to write in RDF links such as those denoted by <link rel="canonical" href="…">? Is it con:preferredURI? Why is the object of con:preferredURI a string and not a resource? I have in a linked data set URIs in my namespace that are owl:sameAs, and among them one which is a "canonical one". When dereferencing one of these URIs, I want to state in the returned RDF something like: :OneOfThoseURIs x:canonicURI :TheCanonicOne. and then have triples about :TheCanonicOne My goal is to make clear that the preferredURI (the one that should be used - and the one that actually is used in the returned RDF) is :TheCanonicOne. Of course: x:canonicURI rdfs:subPropertyOf owl:sameAs.
Looking at prefix.cc I note that you have xhv: as the namespace prefix for many of the IANA properties that drive Web Linking. Thus, you have xhv:canonical as the URI for what you see in <link rel="canonical" .../> .
Thus: :canonicalURI owl:equivalentProperty xhv:canonical; rdfs:subPropertyOf owl:sameAs. ## for good measure xhv:canonical rdfs:subPropertyOf owl:sameAs .As per my earlier comment, I encourage you to model and crack on, then map as and when you discover other ontologies. At the end of the day, you are simply trying to align entity relationship semantics between your world view and that of others :-)
Kingsley
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