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[protege-owl] OWL individuals

Timothy Redmond tredmond at stanford.edu
Fri Apr 20 08:42:33 PDT 2007


>> I can say that:
>>
>> <owl:Class rdf:ID="cars"/>
>> <cars rdf:about="http://www.mysite.org/cars#1"/>
>>
>> and:
>>
>> xml:base="http://www.mysite.org/cars
>> <owl:Class rdf:ID="cars"/>
>> <cars rdf:ID="1"/>
>>
>> are exactly the same thing?
>
> There is some algorithm that combines the xmlns, the xmlbase and the
> string in the rdf:about or rdf:ID that determines the URI.  But I
> have never found a full description of this in the rdf standard.  It
> is easy to find things that are wrong (the w3.org xml namespace
> document does not apply).  Also there is a #'s vs /'s thing that you
> would need  to study.

The #'s vs. /'s thing is explained in  http://www.w3.org/TR/swbp- 
vocab-pub/#naming.

-Timothy




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