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Posted to issues@solr.apache.org by "parveen saini (Jira)" <ji...@apache.org> on 2025/05/08 14:33:00 UTC

[jira] [Created] (SOLR-17757) TFIDFSimilarity scoring difference between version 5.5.4 and 8.9.0

parveen saini created SOLR-17757:
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             Summary: TFIDFSimilarity scoring difference between version 5.5.4 and 8.9.0
                 Key: SOLR-17757
                 URL: https://issues.apache.org/jira/browse/SOLR-17757
             Project: Solr
          Issue Type: Bug
          Components: search
            Reporter: parveen saini


On migrating my solr version from 5.5.4 to 8.9.0 I noticed that TFIDFSimilarity scoring is different and results in different overall score for the query.

On digging deeper it is found idf is factored twice in version 5.5.4 which is causing the issue. Is the change in version 8.9.0 intentional?



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