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From Chris Lamprecht <clampre...@gmail.com>
Subject Re: Question about scoring normalisation
Date Sun, 06 Nov 2005 03:29:39 GMT
Lucene just takes the highest score returned, and divides all scores
by this max_score.  So max_score / max_score = 1.0, and voila.

On 11/5/05, Karl Koch <TheRanger@gmx.net> wrote:
> Hello all,
>
> I am wondering how many of you actually work with own scoring mechanism
> (overwriting Lucenes standard scoring) and how many of you do work on how to
> normalise this score.
>
> I would like to add a second score on top of Lucenes TF/IDF score. The
> resulting score is most likely higher then 1.0. However, the score should be
> between 0.0 and 1.0. What is the best way to do that? If Lucene is
> normalising its score (if no boosting is applied) to a maximium of 1.0, how
> is this done (in Lucene 1.2 and/or beyond) ?
>
> Regards,
> Karl
>
>
> --
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