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  1. Lucene - Core
  2. LUCENE-1628

Persian Analyzer

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    Details

    • Type: New Feature
    • Status: Closed
    • Priority: Minor
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 2.9
    • Component/s: modules/analysis
    • Labels:
      None
    • Lucene Fields:
      New, Patch Available

      Description

      A simple persian analyzer.

      i measured trec scores with the benchmark package below against http://ece.ut.ac.ir/DBRG/Hamshahri/ :

      SimpleAnalyzer:
      SUMMARY
      Search Seconds: 0.012
      DocName Seconds: 0.020
      Num Points: 981.015
      Num Good Points: 33.738
      Max Good Points: 36.185
      Average Precision: 0.374
      MRR: 0.667
      Recall: 0.905
      Precision At 1: 0.585
      Precision At 2: 0.531
      Precision At 3: 0.513
      Precision At 4: 0.496
      Precision At 5: 0.486
      Precision At 6: 0.487
      Precision At 7: 0.479
      Precision At 8: 0.465
      Precision At 9: 0.458
      Precision At 10: 0.460
      Precision At 11: 0.453
      Precision At 12: 0.453
      Precision At 13: 0.445
      Precision At 14: 0.438
      Precision At 15: 0.438
      Precision At 16: 0.438
      Precision At 17: 0.429
      Precision At 18: 0.429
      Precision At 19: 0.419
      Precision At 20: 0.415

      PersianAnalyzer:
      SUMMARY
      Search Seconds: 0.004
      DocName Seconds: 0.011
      Num Points: 987.692
      Num Good Points: 36.123
      Max Good Points: 36.185
      Average Precision: 0.481
      MRR: 0.833
      Recall: 0.998
      Precision At 1: 0.754
      Precision At 2: 0.715
      Precision At 3: 0.646
      Precision At 4: 0.646
      Precision At 5: 0.631
      Precision At 6: 0.621
      Precision At 7: 0.593
      Precision At 8: 0.577
      Precision At 9: 0.573
      Precision At 10: 0.566
      Precision At 11: 0.572
      Precision At 12: 0.562
      Precision At 13: 0.554
      Precision At 14: 0.549
      Precision At 15: 0.542
      Precision At 16: 0.538
      Precision At 17: 0.533
      Precision At 18: 0.527
      Precision At 19: 0.525
      Precision At 20: 0.518

        Attachments

        1. LUCENE-1628.txt
          28 kB
          Robert Muir
        2. LUCENE-1628.patch
          17 kB
          Robert Muir
        3. LUCENE-1628.patch
          19 kB
          Robert Muir
        4. LUCENE-1628.patch
          27 kB
          Mark Miller
        5. LUCENE-1628.patch
          28 kB
          Robert Muir
        6. LUCENE-1628.patch
          29 kB
          Robert Muir
        7. LUCENE-1628.patch
          31 kB
          Robert Muir

          Activity

            People

            • Assignee:
              rcmuir Robert Muir
              Reporter:
              rcmuir Robert Muir
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              Dates

              • Created:
                Updated:
                Resolved: