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Re: [ontolog-forum] Foundation ontology, CYC, and Mapping

To: <doug@xxxxxxxxxx>, "'[ontolog-forum] '" <ontolog-forum@xxxxxxxxxxxxxxxx>
From: "Matthew West" <dr.matthew.west@xxxxxxxxx>
Date: Thu, 18 Feb 2010 08:05:17 -0000
Message-id: <4b7cf4ba.0707d00a.1975.536a@xxxxxxxxxxxxx>
Dear Doug, (and John),    (01)

I missed this first time around.    (02)

> > However, I would broaden the idea to support multiple theories at the
> > upper levels, which might be incompatible.  For example, Matthew,
> > Chris P, and Pat H have strongly supported a 4D ontology for the
> upper
> > levels, but many other people prefer to use a 3D upper level.  For
> > many of the lower level microtheories, the differences between a 3D
> > vs 4D foundation are irrelevant.
> I agree here.  This choice is orthogonal to most of what would be
> asserted
> at lower levels.      (03)

MW: Unfortunately, most lower level ontologies have an implicit upper
ontology - usually 3D. That automatically makes them inconsistent with the
alternative upper ontololgy.    (04)

> A context used for reasoning about instances could
> pick
> one of these upper level theories and compatible more specific theories
> as well as orthogonal theories for reasoning.  For use in mapping among
> different ontologies, fixing on t 3D or 4D theory would not be
> necessary.    (05)

MW: As I said elsewhere, there is hope to do that, but I believe it will
take careful crafting to remove the implicit upper ontologies first.    (06)

Regards    (07)

Matthew West                            
Information  Junction
Tel: +44 560 302 3685
Mobile: +44 750 3385279
http://www.matthew-west.org.uk/    (08)

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