Chantal,

The short answer is that you can't compare relevancy scores across requests.  I 
think this may be in a FAQ.
Check this:
http://search-lucene.com/?q=score+compare+absolute+relative&fc_project=Lucene&fc_project=Solr

Otis
----
Sematext :: http://sematext.com/ :: Solr - Lucene - Nutch
Lucene ecosystem search :: http://search-lucene.com/



----- Original Message ----
> From: Chantal Ackermann <chantal.ackerm...@btelligent.de>
> To: "solr-user@lucene.apache.org" <solr-user@lucene.apache.org>
> Sent: Thu, June 24, 2010 10:17:57 AM
> Subject: MoreLikeThis (mlt) : use the match's maxScore for result score 
> normalization
> 
> Hi there,

consider the following response extract for a MoreLikeThis 
> request:

<result name="match" numFound="1" start="0" 
> maxScore="13.4579935">
<result name="response" numFound="103708" 
> start="0"
maxScore="4.1711807">

The first result element is the 
> document that was input and for which to
return "more like this" 
> results.
The second result element contains the results returned by the 
> handler.

As they both come with a different maxScore I was wondering 
> whether I
could safely use the match's maxScore to normalize the scores of 
> the
"more like this" documents.

Would that allow to reflect to the 
> user the quality/relevancy of the
hits for different MoreLikeThis requests 
> (and only those)?
(What does the match's maxScore 
> mean?)

Thanks!
Chantal

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