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Re: Annotation entailment?

From: Pat Hayes <phayes@ihmc.us>
Date: Thu, 28 Jun 2007 10:49:52 -0500
Message-Id: <p0623090fc2a987541b5f@[]>
To: Alan Ruttenberg <alanruttenberg@gmail.com>, Denny Vrandecic <dvr@aifb.uni-karlsruhe.de>, OWL list <public-owl-dev@w3.org>

>Actually I am not sure if it is wanted. The use case was that I have 
>two ontologies from different sources, and one has some labels in 
>Spanish, the other in English. Now I map the ontologies by using 
>owl:sameAs, owl:equivalentClasses, and owl:equivalentProperties.
>Do the labels carry to the mapped entities? I have the feeling that 
>they should.
>On the other hand, if I use the annotation properties to give some 
>administrative data about the URIs -- introduced by, last changed 
>on, etc. -- then it feels wrong.

FWIW, a very similar discussion is happening in the Common Logic 
mailing list as we speak. CL currently has comments which (like OWL 
annotations) are considered part of the logical syntax (though they 
have no logical semantics and so do not entail anything). I thought 
this would be enough, but a chorus of practical programming folk have 
insisted that there should also be a facility to insert 'local 
comments' into the character file which are treated as whitespace by 
a parser and so are entirely invisible in the logical syntax, for 
exactly the uses you suggest: version tracking, last-changed dates, 
notes between collaborating authors, etc.. So we are busily adapting 
the spec to allow for such things. And of course, being invisible in 
the logical syntax, questions of their logical consequences simply do 
not arise.

Just thought this experience might be of interest.

Pat Hayes

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Received on Thursday, 28 June 2007 15:58:11 UTC

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