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From "Robert Muir (JIRA)" <j...@apache.org>
Subject [jira] [Created] (LUCENE-8023) Remove divide-by-zero formula hacks across sim impls
Date Mon, 30 Oct 2017 23:55:00 GMT
Robert Muir created LUCENE-8023:
-----------------------------------

             Summary: Remove divide-by-zero formula hacks across sim impls
                 Key: LUCENE-8023
                 URL: https://issues.apache.org/jira/browse/LUCENE-8023
             Project: Lucene - Core
          Issue Type: Bug
            Reporter: Robert Muir


Follow-up to LUCENE-8020

With the scoring api no longer passing e.g. docFreq=0 in corner cases such as SpanOrQuery,
we can revert formula hacks that we added to many similarities. It may be very significant
for ranking but it removes confusion and makes it possible to have good explain() etc. 



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