John, (01)
I would suggest that we consider the issue of defining the context(s) or
context ranges/scope for which the Lexicon is applicable. This tends to be
implicit in the group forming or sponsoring any given Lexicon, or in how the
Lexicon is named, but in my experience it is rarely given more than short
shrift in the actual Lexicon implementation itself (if you have to ask, you
probably don't want to use this Lexicon). (02)
I would also add external references /citations to avoid rehashing things
already defined somewhere else. One challenge with doing this is how to deal
with the specializations of meaning that John Sowa mentioned in an earlier
email. Does the Lexicon include a mostly duplicate of the original
definition, with the nuances added, or does it refer to the external source
and just include the nuances in the local Lexicon context? Or maybe the
local definition is significantly at odds with common definitions of a term
specified elsewhere. Do you highlight that fact to draw the Lexicon user's
attention to the alternate definition so as to reduce the probability that
the term might be misused in the Lexicon's intended context? (03)
Zooming out a bit, it might well be a good idea to mention in the Lexicon
how it relates to other Lexicons with which the Lexicon user is likely to
interact. This will likely never be a complete set, but I think it would be
helpful in many real world contexts in which the Lexicon is likely to be
applied. It might also be helpful to have a section on potential future
entries or areas of extensibility of the Lexicon, and the processes for
executing such extensions. Another way of saying this, is the Lexicon
inherently/intentionally "closed" (and maybe self-consistent), or is it
acknowledged as incomplete and open-ended along some scope dimensions? (04)
Hans (05)
-----Original Message-----
From: ontolog-forum-bounces@xxxxxxxxxxxxxxxx
[mailto:ontolog-forum-bounces@xxxxxxxxxxxxxxxx] On Behalf Of John Bottoms
Sent: Thursday, March 01, 2012 4:18 PM
To: ontolog-forum@xxxxxxxxxxxxxxxx
Subject: Re: [ontolog-forum] What goes into a Lexicon? (06)
Back to my original question: What goes into a Lexicon? (07)
The recent discussions have included:
1.) concepts, 2.) constructs, 3.) primitives [and other maths], 4.) terms
5.) axioms (08)
And there have been references to
a.) lists, b.) vocabularies, c.) synonyms & multiple identifiers (09)
Little or no mention has been made of
i.) economics (cost/benefit) within the ontology ii.) semantics (010)
Perhaps we should identify when we are talking about: Grammatical | Semantic
| Linguistic systems. (011)
Chomsky's view (1965) of grammatical systems includes:
A syntactic part made of up:
(Phase Structure Rules, Lexicon with rules of insertion,
Transformational Component)
A semantic part component (from Katz & Fodor?) composed of:
(projection rules, semantic markers) (012)
Mary Dee Harris (1985) reviews the field to that date, and demonstrates an
implementation of a lexical record as a head containing:
a word (or I presume a phrase) having
a grammatical child (a role in a sentence) and
a semantic child (of markers, constraints and relations) (013)
On Ontologies: It is my view that ontologies only add value when: (014)
They facilitate more intelligent processing than is provided by existing
DB systems (not the DB itself) provide (this is justified in terms of time
to find allied relations and constraints and methods, this might entail some
semantics, I'm not sure yet), (015)
AND (016)
The user community (of the ontology) is large enough to support a more
complex vocabulary for problem solving (meaning that there are more methods
that use finer grained processing of semantic differences than in a DB
system). (017)
-John Bottoms
FirstStar Systems
Concord, MA (018)
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