SUO: Fwd: Re: CG: CG representations for WordNet
forwarding a message at Philippe's request, since he's not subscribed to SUO...
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>To: cg@cs.uah.edu
>cc: philippe.martin@gu.edu.au, rich@valutech.com, apease@ks.teknowledge.com
>Subject: Re: CG: CG representations for WordNet
>Reply-To: philippe.martin@gu.edu.au
>Date: Wed, 15 Jan 2003 19:40:14 +1000
>From: Philippe Martin <phmartin@meganesia.int.gu.edu.au>
>
>
>Rich, Adam,
>
> > ... If word senses (types) are in a generalization lattice,
> > does that mean that every node in the lattice has one or more CGs?
> > ... is there a database of CGs that corresponds to the
> > WordNet entries?
>
>Many primitive relations (not just the very few listed in WordNet)
>can be associated to categories for situations (states or processes),
>e.g. case/spatial/temporal relations, and most instances of situation
>categories can be source/destination of most of these relations.
>The following URL permits to browse an ontology for such relations:
>http://meganesia.int.gu.edu.au/~phmartin/WebKB2/bin/termSearch.cgi?term=pm%23relation_from_situation&recursLink=%3E&hyperlinks
>
>Schemas may be associated to categories to represent the most common
>basic relations associated to these categories. The knowledge server
>WebKB-2 (www.webkb.org) exploits schemas to generate cascasding menus in order
>to help users create normalized knowledge representations.
>Such schemas do not need to be associated to all categories, only relatively
>high-level categories (these schemas are then inherited by more specialized
>categories). FCG representations of such schemas are at:
>http://meganesia.int.gu.edu.au/~phmartin/WebKB/kb/schemas.html
>
>The default ontology of WebKB-2 (the one accessible at www.webkb.org and used
>in the above cited examples) is an integration of several top-level ontologies
>with a correction and extension of WordNet 1.7. For details, see
>http://meganesia.int.gu.edu.au/~phmartin/WebKB/doc/wn/
>Each category identifier is prefixed by its source, e.g. Sowa, although
>the prefix "wn" is left implicit for WordNet categories.
>Many options to browse this ontology are provided by
>http://meganesia.int.gu.edu.au/~phmartin/WebKB/interface/termSearch.html
>It is also available for download in the FO format, and in slightly
>impoverished ways, in DAML/RDF, CGIF and WordNet.
>This ontology was announced on the CG and SUO lists on the 27/06/2002
>(http://suo.ieee.org/email/msg08866.html).
>
>I should note that this ontology only integrates the noun-related part of
>WordNet 1.7 since WebKB-2 is designed for normalized and explicit
>knowledge representation by people, not for natural language parsing.
>In WordNet, most categories for actions are both in the verb part and
>the noun part (try "cut" or "eating" for example). The generalisation
>hierarchy for the noun part is more adequate for knowledge representation.
>WordNet 2.0 is expected to provide the (identity/synonymy?) links between
>the categories in the noun part and those in the verb part. If this is the
>case, both parts will be mergeable into a single generalization hierarchy.
>
>Philippe
>
>_____________________________________________________________________________
>Dr. Philippe Martin
>Senior Research Fellow at the Distributed Systems Technology Center
> (DSTC Pty Ltd; DSTC is W3C's Australian Office)
>Address: Griffith Uni, School of I.T., PMB 50 GCMC, QLD 9726 Australia
>Email: philippe.martin@gu.edu.au; Fax: +61 7 5552 8066
>_____________________________________________________________________________