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From "Jayant Patil (JIRA)" <j...@apache.org>
Subject [jira] Created: (SOLR-2131) Solr Boost returns unexpected results
Date Thu, 23 Sep 2010 12:53:36 GMT
Solr Boost returns unexpected results
-------------------------------------

                 Key: SOLR-2131
                 URL: https://issues.apache.org/jira/browse/SOLR-2131
             Project: Solr
          Issue Type: Wish
            Reporter: Jayant Patil


Hi,

We are using Solr for our searches. We are facing issues while applying boost on particular
fields.
E.g. 
We have a field Category, which contains values like Electronics, Computers, Home Appliances,
Mobile Phones etc. 
We want to boost the category Electronics and Mobile Phones, we are using the following query
(category:Electronics^2 OR category:Mobile Phones^1 OR category:[* TO *]^0)

The results are unexpected as Category Mobile Phones gets more boost than Electronics even
if we are specifying the boost factor 2 for electronics and 1 for mobile phones respectively.
On debugging we found that DocFreq is manipulating the scores and hence affecting the overall
boost. The no. of docs for mobile phones is much lower than that for electronics and solr
is giving higher score to mobile phones for this reason.

Please suggest a solution.

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