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From Grant Ingersoll <gsing...@apache.org>
Subject Re: is it possible to change the way score from different field combine to give final lucene score
Date Sun, 30 Mar 2008 01:35:32 GMT
http://lucene.apache.org/java/2_3_1/api/org/apache/lucene/search/function/package-summary.html

Sorry, they are called FunctionQuery in Solr, but Lucene calls 'em  
FieldScoreQuery, etc.  Sounds like CustomScoreQuery may do the trick.

HTH
-Grant

On Mar 26, 2008, at 4:34 AM, John Wang wrote:

> HI Grant:
>
>     I don't see FunctionQuery in the javadocs. Can you post a link?
>
> Thanks
>
> -john
>
> On Mon, Mar 24, 2008 at 3:32 PM, Grant Ingersoll <gsingers@apache.org>
> wrote:
>
>> See the FunctionQuery and the org.apache.lucene.search.function
>> package.  You can also implement your own query, as it's not clear to
>> me how exactly you want to calculate the score.  Essentially, you  
>> have
>> your implementation of BooleanQuery, I think.  Perhaps more details
>> would help.
>>
>> -Grant
>>
>>
>> On Mar 24, 2008, at 2:26 AM, Nizamul wrote:
>>
>>> Suppose I have two field field1 and field2 and let the score for a
>>> query from field1 and field2 are score1 and score2 respectively.now
>>> when computing the final lucene score I instead of score1,I want to
>>> use some function (f(score1)) of that score.
>>
>> --------------------------
>> Grant Ingersoll
>> http://www.lucenebootcamp.com
>> Next Training: April 7, 2008 at ApacheCon Europe in Amsterdam
>>
>> Lucene Helpful Hints:
>> http://wiki.apache.org/lucene-java/BasicsOfPerformance
>> http://wiki.apache.org/lucene-java/LuceneFAQ
>>
>>
>>

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