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From Ian Soboroff <>
Subject Re: Lucene + LSI
Date Mon, 12 Dec 2005 20:09:53 GMT
Paul Libbrecht <> writes:

> We're also thinking about implementing something similar to LSI within
> ActiveMath which is lucene-powered where both formulae and text
> searching would benefit of the latent-semantic-similarity. I've been
> refrained of doing "exactly this" at least since LSI is patented. This
> might also be a reason why there's no implementation in Lucene's
> sandbox.
> Have you looked at other vector-based approaches which are not exactly LSI ?
> Have you looked at InfoMap NLP ?

Look for Thomas Hofmann's "probabilistic LSI", and other recent work
which cites it.


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