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Re: [ontolog-forum] WordNet vs Ontology

To: ontolog-forum@xxxxxxxxxxxxxxxx
From: John F Sowa <sowa@xxxxxxxxxxx>
Date: Mon, 18 Aug 2014 02:47:45 -0400
Message-id: <53F1A191.6010007@xxxxxxxxxxx>
I received an offline note with a few questions about this issue.
Since this topic is related to my slides from a panel discussion
last Thursday, I'll suggest them for more info:    (01)

    http://www.jfsowa.com/talks/soup_llr.pdf    (02)

> I'd like to know more about how you used WordNet
> in your work at VivoMind.    (03)

Short answer:  As a lexical resource for use in parsing.  We also
use Roget's Thesaurus in the same way as WordNet.  Neither one has
a dependable hierarchy, but they're OK as a rough approximation.
Roget's Th. is much better than WN for adjectives and adverbs.
They supplement one another.  But I would *not* recommend an
attempt to "harmonize" them in a single resource.    (04)

> My present thinking is that synsets are "fuzzy" concepts
> which can be used for higher-level reasoning, which
> can guide further thinking and actions.    (05)

I would say that the hierarchy of WordNet (or Roget's) is better
than no hierarchy at all.  But the ultimate solution is to derive
a distinct ontology for each document or set of documents.  A rough
first pass, such as WN or RT, is useful to start with.    (06)

> It sounds like concept-graph-matching provides
> a "ContextNet" for your VivoMind work.    (07)

The ontology for any single document is usually fairly consistent.
Graphs derived from simple sentences in one part of the document
can be used as a basis for interpreting other sentences that may
be less clear.    (08)

John    (09)

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