[jira] [Commented] (SOLR-5827) Add boosting functionality to MoreLikeThisHandler

["Upayavira (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SOLR-5827?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13923808#comment-13923808 ] 

Upayavira commented on SOLR-5827:
---------------------------------

It is perhaps worth noting that these are made against the 4x branch.

> Add boosting functionality to MoreLikeThisHandler
> -------------------------------------------------
>
>                 Key: SOLR-5827
>                 URL: https://issues.apache.org/jira/browse/SOLR-5827
>             Project: Solr
>          Issue Type: Improvement
>          Components: MoreLikeThis
>            Reporter: Upayavira
>             Fix For: 4.8
>
>         Attachments: SOLR-5827.patch, SOLR-5827.patch
>
>
> The MoreLikeThisHandler facilitates the creation of a very simple yet powerful recommendation engine. 
> It is possible to constrain the result set using filter queries. However, it isn't possible to influence the scoring using function queries. Adding function query boosting would allow for including such things as recency in the relevancy calculations.
> Unfortunately, the boost= parameter is already in use, meaning we cannot replicate the edismax boost/bf for additive/multiplicative boostings.
> My patch only touches the MoreLikeThisHandler, so the only really contentious thing is to decide the parameters to configure it.
> I have a prototype working, and will upload a patch shortly. 



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