Classic Similarity helped, but the ranges of values don’t have a min near 0 
like back in 4's version


Are there other attributes/elements to this factory that could get me back the 
old functionality?

-----Original Message-----
From: Joël Trigalo [] 
Sent: Friday, February 23, 2018 10:41 AM
Subject: Re: SOLR Score Range Changed

The difference seems due to the fact that default similarity in solr 7 is
BM25 while it used to be TF-IDF in solr 4. As you realised, BM25 function is 
You can configure schema.xml to use ClassicSimilarity, for instance

But as said before, maybe you are using properties that are not guaranteed so 
it would be better to change score function or sorting (rather than coming back 
to ClassicSimilarity)

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