Leo, (01)
At 08:19 AM 11/13/2002 -0500, Leo Obrst wrote:
>All,
>
>We are considering one possibility for our site: an ontology repository,
>wherein folks can register ontologies and/or build ontologies using
>Web-enabled tools, possibly hosted at our site.
>
>So some questions:
>1) How do you feel about:
> a) our site supporting an ontology repository?
> b) our site supporting a Web-enabled ontology tool (for developing
>ontologies)?
> c) none of the above. (02)
a) sounds like a good idea (03)
>2) Which ontology tools do you use?
> a) Can you characterize the tools: i.e., Web-enabled, ontology
>languages supported, cost/licensing, POCs, experience, etc.
> b) Do you know of a tool provider who might support such a public
>effort, hosted on our site? (04)
There's an open source tool for browsing KIF-based theories at
<http://virtual.cvut.cz/kifb/en/> with download at
<http://einstein.teknowledge.com:8080/SUMO/SUMO_register.jsp?fileType=.zip&fileName=kifb-1-8.tar.gz>. (05)
It's free. (06)
>3) Which ontology languages (knowledge representation languages) should
>be the standard(s) for the ontologies?
> (Some examples: Ontolingua/KIF, Common Logic, OKBC, CycL, RDF/S,
>DAML+OIL, OWL, etc.) (07)
Unless you want a lossy translation, you'll have to use the most expressive
language, like KIF. If you try to express a KIF theory in DAML, all the
rules are lost. (08)
>4) Additional Comments? (09)
Having all ontologies expressed in the same language would be a great
start. People continually reinvent the same ontologies in different
languages. Once that is done, some serious work can start at comparing and
integrating existing ontologies. That's the approach we took to create the
initial versions of SUMO <http://ontology.teknowledge.com> (010)
>Thanks!
>Leo
>
>--
>_____________________________________________
>Dr. Leo Obrst The MITRE Corporation
>mailto:lobrst@xxxxxxxxx Intelligent Information Management/Exploitation
>Voice: 703-883-6770 7515 Colshire Drive, M/S W640
>Fax: 703-883-1379 McLean, VA 22102-7508, USA
>
>
>
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