Details
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Improvement
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Status: Open
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Major
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Resolution: Unresolved
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None
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None
Description
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.