On 07/02/2018 21:59, Mukhopadhyay, Aratrika wrote:

Hi,

- You seem to have two field incorrectly concatenated with an
underscore: qf=FIELD1^20.0_FIELD2^0.03 - this should be a space or an
encoded space
- a large boost of 20 combined with a fractional boost of 0.03 worries
me as it implies that one field is 666 times as important as another,
are you sure this is the case?
- you should turn off *all* the boosts, including the Nutch one, and
start again, *gently* applying boosts where you can *prove* they improve
relevancy
- you should consider using a tool such as Quepid (disclaimer: we resell
this, but there's a free trial period you can use) for relevancy tuning
based on a set of test cases

HTH,

Charlie
--
Charlie Hull
Flax - Open Source Enterprise Search

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