Classic Similarity helped, but the ranges of values don’t have a min near 0 like back in 4's version
<similarity class="org.apache.solr.search.similarities.ClassicSimilarityFactory"></similarity> Are there other attributes/elements to this factory that could get me back the old functionality? -----Original Message----- From: Joël Trigalo [mailto:jtrig...@gmail.com] Sent: Friday, February 23, 2018 10:41 AM To: solr-user@lucene.apache.org 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 smoother. You can configure schema.xml to use ClassicSimilarity, for instance https://lucene.apache.org/solr/guide/6_6/major-changes-from-solr-5-to-solr-6.html#default-similarity-changes https://lucene.apache.org/solr/guide/6_6/field-type-definitions-and-properties.html#FieldTypeDefinitionsandProperties-FieldTypeSimilarity 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)
