[tmcl-wg] Frame-based Ontologies was: [Overlapping, matching, conflict between constraints]

[Mary Nishikawa]

Dan,

Thanks. Wow, this is thorough! Please give me some time to absorb all of 
this. So I can call on you as the expert in this area?

I will be creating many specific threads, and Dan's feedback can begin 
discussions on where this would fit into the requirements. Comments 
appreciated.

Cheers,
Mary

At 16:24 2003/03/23 -0500, you wrote:
>Mary Nishikawa wrote:
>
> > Sorry Bernard, I am in the dark. What are frame-based ontologies?
> > Can you define it?
>
>Hi Mary,
>
>If I may fill in here ...
>
>Frames were an early AI paradigm for KR, still used after 25+
>years.  They keep values under "slots" constrained by metadata
>called "facets".  Terminology aside, they show approaches we
>might usefully tap for handling TMCL's similar problems.
>
>I recently posted links [1]-[4], on other views of facets and
>constraints.  (Go "up" from [1] for a summary of Frames):
>
> > [1] http://babs.cs.umass.edu/research/frame-system/section1_2_0_2.html
> >
> > These techniques would let XTM 1.0 readily record several common
> > sorts of constraints, including those of [2], [3] and [4]:
> >
> > [2] http://www.ai.sri.com/~gfp/spec/paper/node22.html
> > [3] http://www.w3.org/TR/xmlschema-2/#facets
> > [4] http://kmi.open.ac.uk/psi/datatypes.html
>
>Frames were originally embedded in Lisp.  Today, all the Lisp
>programs once employed as constraint-checkers might be replaced
>by description-logic interpreters.  That adds optional new
>wrinkles, and a host of new design problems as well.
>
>Murray Altheim, who proposed [4], posted related link [5].  It
>discusses the main semantic web languages, compared at [6].  At
>the high end, they seem to follow the DL-based drumbeat:
>
> > [5] http://www.jfsowa.com/talks/clprop.htm#s05
> > [6] http://www.daml.org/language/features.html
>
>Refs [1]-[6] cannot say *how* TMCL handles constraints, but they
>may provide a listing of *which* constraints most need handling,
>and give specific examples of related work.
>
>Cheers,
>Dan Corwin
>
>PS - This other thread will put the above quotes in context:
>
>   http://www.infoloom.com/pipermail/topicmapmail/2003q1/004539.html
>_______________________________________________
>tmcl-wg mailing list
>tmcl-wg@isotopicmaps.org
>http://www.isotopicmaps.org/mailman/listinfo/tmcl-wg