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From "Yonik Seeley (JIRA)" <>
Subject [jira] Closed: (SOLR-2131) Solr Boost returns unexpected results
Date Thu, 23 Sep 2010 17:26:33 GMT


Yonik Seeley closed SOLR-2131.

    Resolution: Not A Problem

Closing - this was brought up on the user list and does not represent a bug.

> Solr Boost returns unexpected results
> -------------------------------------
>                 Key: SOLR-2131
>                 URL:
>             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
> 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
> (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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