Lucene - Core
  1. Lucene - Core
  2. LUCENE-5175

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

    Details

    • Type: Improvement Improvement
    • Status: Open
    • Priority: Minor 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.

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

        Activity

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          • Assignee:
            Unassigned
            Reporter:
            Tom Burton-West
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            Dates

            • Created:
              Updated:

              Development