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From Otis Gospodnetic <otis_gospodne...@yahoo.com>
Subject Re: Lucene features
Date Wed, 17 Sep 2003 08:28:49 GMT
That would be nice.  Contributions are always welcome.

Otis

--- Chris Sibert <chrissibert@comcast.net> wrote:
> Thanks for all the replies. I feel reassured with using Lucene. If I
> end up
> doing anything with the application that I'm writing, I would like to
> look
> at contributing some documentation of Lucene's features, and what it
> has to
> offer.
> 
> ----- Original Message ----- 
> From: "Leo Galambos" <Leo.G@seznam.cz>
> To: "Lucene Users List" <lucene-user@jakarta.apache.org>
> Sent: Thursday, September 11, 2003 4:57 PM
> Subject: Re: Lucene features
> 
> 
> > Doug Cutting wrote:
> >
> > >
> > > I have some extensions to Lucene that I've not yet commited which
> make
> > > it possible to easily define synthetic IndexReaders (not
> currently
> > > supported).  So you could do things that way, once I check these
> in.
> > > But is this really better than just ANDing the clauses together? 
> It
> > > would take some big experiments to know, but my guess is that it
> > > doesn't make much difference to compute a "local" IDF for such
> things.
> >
> >
> > In this case, I think that the operator would be evaluated as "an
> > implication" and not "AND" (=1-(((1-q1)^p+(1-q2)^p )/2 )^(1/p)).
> > Obviously, you have to use an filter to filter out false hits (in
> case
> > of q1->q2, the formula is true when q1 is false, so it is not what
> you
> > really need), but it is not an issue with the auxiliary index. On
> the
> > other hand, it is a feeling and it needs a test, you are right.
> >
> > Leo
> >
> >
> >
> >
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> 
> 
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