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RE: Test ontologies

From: Ian Horrocks <horrocks@cs.man.ac.uk>
Date: Fri, 25 Jul 2003 14:36:46 +0100
Message-ID: <16161.12910.337375.164167@merlin.horrocks.net>
To: Jim Hendler <hendler@cs.umd.edu>
Cc: "Peter Crowther" <Peter.Crowther@melandra.com>, <www-webont-wg@w3.org>

On July 25, Jim Hendler writes:
> These sorts of things are extremely useful for our testing and 
> implementation experience (important for CR).  I would like to find a 
> better way than simply sharing on this list to get these out there -- 
> We could consider adding these as tests in the test suite 
> (particularly the Galen, as we have the "answers" as well) - or, we 
> could consider putting these somewhere visible on the web site and 
> letting people access and use to do testing without a more formal 
> structure.  I believe the latter might be worth considering - during 
> the CR period we could do some of this both to help implementors and 
> to gain momentum for our eventual PR request.  At one point I had 
> talked about the possibility of creating http://www.w3.org/2003/OWL 
> as a web site and putting some useful links there (like the RDF site 
> did) - with the idea that the WG would start this, and then transfer 
> it to whatever interest group was started in the Semantic Web 
> Activity at W3C.   If people think this is a good idea, I think we 
> could do several useful things on such a site -- point to some of the 
> "idioms" we've discussed, provide some examples like those below, etc.
>   -JH

Good idea. Developing and maintaining the site could be quite a big
job though -- do you have a victim (I mean volunteer)?

> p.s. Ian, if you haven't already, why don't you submit those to the 
> http://www.daml.org/ontologies library?  It now accepts OWL.

Good idea. Developing and maintaining the site could be quite a big
job though -- do you have a victim (I mean volunteer)?

> 
> 
> 
> At 1:47 PM +0100 7/25/03, Ian Horrocks wrote:
> >On July 25, Peter Crowther writes:
> >>
> >>  > From: Ian Horrocks [mailto:horrocks@cs.man.ac.uk]
> >>  > I converted some "interesting" ontologies to OWL:
> >>  >
> >>  > http://www.cs.man.ac.uk/~horrocks/OWL/Ontologies/ka.owl
> >>  > http://www.cs.man.ac.uk/~horrocks/OWL/Ontologies/galen.owl
> >>  > http://www.cs.man.ac.uk/~horrocks/OWL/Ontologies/mad_cows.owl
> >>  >
> >>  > They have been checked with both validators and seem to be OK. The
> >>  > first (ka.owl) is Lite, the other two are DL. "galen.owl" is (part of)
> >>  > the well known Galen medical terminology ontology - classifying this
> >>  > ontology should prove an interesting challenge for new reasoner
> >>  > implementations.
> >>
> >>  In particular (speaking from experience), there are some
> >>  less-than-obvious subsumption relationships in galen.owl - and it
> >>  doesn't even use several of the more interesting features of DL.  What
> >>  Ian (characteristically) hasn't said is that this fragment of the Galen
> >>  KB is something of a benchmark for DL reasoners; the fastest
> >>  implementation of a description logic (SHF, not OWL DL) of which I am
> >>  aware can calculate the full subsumption hierarchy of galen.owl in a
> >>  hair under 10 seconds on a 2GHz Pentium, excluding the file load time.
> >>
> >>  Ian, do you also have a list of expected subsumptions in galen.owl?  It
> >>  would provide a useful target for DL reasoner implementations.
> >
> >I have attached a dump of the taxonomy of named classes from the
> >ontology. It is set of lists of the form:
> >
> >(class-name direct-supers direct-subs)
> >
> >where class-name is the name of a class, direct-supers is a list of
> >its direct superclasses, and direct-subs is a list of its direct
> >subclasses. E.g.:
> >
> >("BodySpace" ("Space" "BodyStructure") ("PericardialSpace" 
> >"OperationField" "BodyHole"))
> >
> >says that the direct superclasses of "BodySpace" are "Space" and
> >"BodyStructure", and that the direct subclasses of "BodySpace" are
> >"PericardialSpace", "OperationField" and "BodyHole".
> >
> >Regards, Ian
> >
> >
> >>
> >>  		- Peter
> >>  --
> >>  Peter Crowther, Director, Melandra Limited
> 
> -- 
> Professor James Hendler				  hendler@cs.umd.edu
> Director, Semantic Web and Agent Technologies	  301-405-2696
> Maryland Information and Network Dynamics Lab.	  301-405-6707 (Fax)
> Univ of Maryland, College Park, MD 20742	  *** 240-277-3388 (Cell)
> http://www.cs.umd.edu/users/hendler      *** NOTE CHANGED CELL NUMBER ***
Received on Friday, 25 July 2003 09:38:00 GMT

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