Thanks for the compliment Duane, but I suspect the McCarthy here
mentioned by Chris is the eminent AI scientist John (who I wish was
related to me but doesn't seem to be unfortunately). (01)
Bill McCarthy (02)
-----Original Message-----
From: ontolog-forum-bounces@xxxxxxxxxxxxxxxx
[mailto:ontolog-forum-bounces@xxxxxxxxxxxxxxxx] On Behalf Of Duane
Nickull
Sent: Wednesday, July 06, 2005 2:28 PM
To: [ontolog-forum]
Subject: Re: [ontolog-forum] Context, at last! (03)
Some of Bill's work has been embraced in the UN/CEFACT CCTS work. That
is available as an ISO 15000-* standard. (04)
The basic idea is that x is defined as [definition of x] valid within
[context]. In the CCTS context framework, a business context is made up (05)
of an 8 dimensional array of context 'drivers'. I place a quote around
'drivers' since they are more like qualifiers to me. (06)
The core components themselves are context agnostic. They inherit from
the CC data types and are specialized based on words from the Oxford
dictionary. An example is "integer" becomes a Core Component of
"amount". It is still not something that is used in a specific business (07)
vocabulary until you define the context of usage which includes (at
current iteration) business process, role, geo-political, etc context
classifiers. To use the previous example, "amount" could become
"invoice total" if used in a procurement process by the "purchaser" in
an english speaking location. (08)
Duane (09)
Christopher Menzel wrote: (010)
>> Is there any particular theory of context that you find especially
>> convincing?
>
>
> Well, "context" itself is such a weasel word that there's no one
> account that does it all. Various theories have different strengths
> and highlight different aspects of context. There are several people (011)
> currently doing some very promising work based on McCarthy's original (012)
> ideas (http://citeseer.ist.psu.edu/mccarthy93notes.html), but I'm not (013)
> sure anything is available for public consumption yet; I'll pass
> anything on that I hear about. McCarthy's former students Sasa Buvac (014)
> and Ian Mason did some nice model theoretic work that captures some
> of the more important of McCarthy's intuitions (http://
> citeseer.ist.psu.edu/buvac93propositional.html; http://
> citeseer.ist.psu.edu/245732.html; http://citeseer.ist.psu.edu/
> 8458.html). I also like some of the things that Fausto Giunchiglia
> has done quite a lot. His work stresses the intentional side of the (015)
> idea of context, where contexts are thought of, roughly, as sets of
> beliefs: http://dit.unitn.it/~fausto. By contrast, inspired by both
> McCarthy and situation theory, I develop a nonintentional notion of
> context, on which contexts are spatio-temporally extended pieces of
> the world in "The Objective Conception of Context and Its Logic"
> (Minds and Machines 9 (1999) pp. 29-56, online at http://
> philebus.tamu.edu/cmenzel/Papers/mm-paper.pdf).
>
> Useful surveys are found in Patrick Brezillon's "Context in
> Artificial Intelligence: I. A Survey of the literature" (http://
> citeseer.ist.psu.edu/502745.html) and Akman and Surav's "Steps Toward (016)
> Formalizing Context" (http://citeseer.ist.psu.edu/akman96steps.html).
>
> -chris
>
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