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From Parit Bansal <>
Subject Help regarding BM25Similarity
Date Thu, 04 Jan 2018 15:58:27 GMT

I am trying to tweak BM25Similarity for my use case wherein, I want to 
avoid the effects of field-length normalization for certain fields 
(return a constant value irrespective of how long was the document). 
Currently, both computeWeight and computeNorm methods are defined final 
in BM25Similarity.

In ClassicSimilarity, same was possible by overriding the lengthNorm 
method. Is there a way around in BM25Similarity? Is there a possibility 
to change it to non-final methods in new releases?

- Best

Parit Bansal

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