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Re: semantics of daml:equivalentTo [was: Comments on Annotated DAML 1.6]

From: Robert E. Kent <rekent@ontologos.org>
Date: Wed, 11 Oct 2000 09:29:36 -0700
Message-ID: <003c01c033a0$72177de0$7b76e4ce@Dell>
To: "Jim Hendler" <jhendler@darpa.mil>, "Dan Connolly" <connolly@w3.org>, "Grit Denker" <denker@csl.sri.com>
Cc: <www-rdf-logic@w3.org>
There is an abstract semantics for precisely this kind of type equivalence
in the context of ontology sharing in my ISKO6 paper "The Information Flow
Foundation for Conceptual Knowledge Organization"
[http://www.ontologos.org/Papers/ISKO6/ISKO6.pdf].

Robert E. Kent
rekent@ontologos.org

----- Original Message -----
From: "Jim Hendler" <jhendler@darpa.mil>
To: "Dan Connolly" <connolly@w3.org>; "Grit Denker" <denker@csl.sri.com>
Cc: <www-rdf-logic@w3.org>; <seanl@cs.umd.edu>
Sent: Wednesday, October 11, 2000 6:37 AM
Subject: Re: semantics of daml:equivalentTo [was: Comments on Annotated DAML
1.6]


> While I'm not a details guy like Dan, I thought the definition of
> equivalency was a simple one (i.e. not actually equality) -- I
> thought we were striving for essentially "macro" like replacement --
> i.e. if (equiv XXX YYY) then it should mean replacing XX with YYY
> leaves meaning unchanged.  This may seem silly, but consider it where
> one ontology has something called "automobile" and another has
> something called "car" -- I may want some agent to know it can map
> between these two so I would want to be able to assert that
> ontology1:autombile is equivalent to ontology2:car.  Jeff Heflin and
> Sean Luke introduced this to the SHOE language, and it was quite
> useful (and they can correct me if I haven't explained it well) --
> Jeff's versioning work (see the SHOE web page) also uses this.
>   -Jim H.
>
>
> Dr. James Hendler jhendler@darpa.mil
> Chief Scientist, DARPA/ISO 703-696-2238 (phone)
> 3701 N. Fairfax Dr. 703-696-2201 (Fax)
> Arlington, VA 22203 http://www.cs.umd.edu/~hendler
>
Received on Wednesday, 11 October 2000 12:30:04 GMT

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