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Re: [ontolog-forum] commercial products

To: ontolog-forum@xxxxxxxxxxxxxxxx
Cc: Uta Priss <u.priss@xxxxxxxxxxxx>
From: "John F. Sowa" <sowa@xxxxxxxxxxx>
Date: Sat, 02 Oct 2010 19:34:49 -0400
Message-id: <4CA7C199.8070801@xxxxxxxxxxx>
PS:  I forgot to mention that Uta Priss, who manages the web site,
also added a sublattice generator for WordNet.  It's very interesting
to compare the results from both WordNet and Roget's Thesaurus for
any particular word:    (01)

    http://www.ketlab.org.uk/wordnet.html    (02)

    http://www.ketlab.org.uk/roget.html    (03)

Compare the verb 'explore' on both, for example.  WN gives a more
detailed hierarchy than Roget's.    (04)

For 'happy', you won't get anything from WN, but a rather interesting
lattice from Roget's.    (05)

For 'book', WN generates a two-level lattice with 7 supertypes of
'book'.  Roget's presents a more interesting lattice with both noun
senses and verb senses for 'book'.    (06)

In general, WordNet has very poor coverage for adjectives.  At VivoMind,
we use Roget's Thesaurus as a supplement to WN, and it is especially
useful for adjective and adverbs.    (07)

John    (08)

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