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From Doron Cohen <>
Subject Re: Customized search with Lucene?
Date Thu, 25 Oct 2007 08:37:56 GMT
"Lukas Vlcek" <> wrote on 25/10/2007 10:25:23:

> Doron,
> You definitely added few important (crucial) questions. There
> are important
> concerns and I am glad to hear that Lucene community is
> debating them. I am
> not an Lucene viscera expert thus I can hardly compare simple
> search engine
> from the book with Lucene but it is pity to hear that robust
> implementation
> of the algorithm from the book for Lucene would be very complex, if not
> impossible, due to design constraints like non-static docid :-(

I am not aware of any search engine implementation whose internal
docids are static.

Still, please don't let this discussion discourage you - I am
not sure that your "needs" from Lucene are sufficiently defined
at this stage, and once they are, I'm sure this list will have
more useful how-to ideas.

> Back to the customized search, I don't think it will be that
> impossible to
> store specific neural net for each user speaking about small intranet or
> application user base. In the mentioned book only the middle tier (hidden
> layer of nodes) from the neural net is kept. Other two layers
> of nodes (that
> is words in one hand and documents in the other hand) don't have to be
> stored in customized database. I believe this is an interesting
> idea because
> then it is a question of the neural net design (one might need
> many hidden
> layers while other can live with just very thin net if the results are
> sufficient).
> Anyway, thanks for your time.
> Regards,
> Lukas

You're welcome,

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