lucene-java-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Morus Walter <>
Subject Re: Negative Boost
Date Thu, 05 Aug 2004 06:06:16 GMT
Daniel Naber writes:
> On Wednesday 04 August 2004 13:19, Terry Steichen wrote:
> > I can't get negative boosts to work with QueryParser.  Is it possible to do
> > so?
> Isn't that the same as using a boost < 1, e.g. 0.1? That should be possible.
a^-1 OR b
A boost of -1 means that the score gets smaller if a document contains a 
with that boost appears. So it's somehow similar to NOT a, though less strict.
A boost of 0.1 means that the score is increased less for an occurance of a.

Usually one just want's the latter, but it's not the same.

To unsubscribe, e-mail:
For additional commands, e-mail:

View raw message