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  1. Lucene - Core
  2. LUCENE-5175

Add parameter to lower-bound TF normalization for BM25 (for long documents)

    Details

    • Type: Improvement
    • Status: Open
    • Priority: Minor
    • Resolution: Unresolved
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: core/search
    • Labels:
      None
    • Lucene Fields:
      New, Patch Available

      Description

      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.

        Attachments

        1. LUCENE-5175.patch
          16 kB
          Tom Burton-West

          Activity

            People

            • Assignee:
              Unassigned
              Reporter:
              tburtonwest Tom Burton-West
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              Dates

              • Created:
                Updated: