[jira] [Created] (LUCENE-5175) Add parameter to lower-bound TF normalization for BM25 (for long documents)

["Tom Burton-West (JIRA)" <ji...@apache.org>]

Tom Burton-West created LUCENE-5175:
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             Summary: Add parameter to lower-bound TF normalization for BM25 (for long documents)
                 Key: LUCENE-5175
                 URL: https://issues.apache.org/jira/browse/LUCENE-5175
             Project: Lucene - Core
          Issue Type: Improvement
          Components: core/search
            Reporter: Tom Burton-West
            Priority: Minor


In the article "When Documents Are Very Long, BM25 Fails!" a fix for the problem is documented.  There was a TODO note in BM25Similarity to add this fix. I will attach a patch that implements the fix shortly.

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