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Date: Mon, 3 Aug 2009 16:43:14 -0700 (PDT)
From: "Mark Miller (JIRA)" <jira@apache.org>
To: java-dev@lucene.apache.org
Subject: [jira] Assigned: (LUCENE-1628) Persian Analyzer
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     [ https://issues.apache.org/jira/browse/LUCENE-1628?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mark Miller reassigned LUCENE-1628:
-----------------------------------

    Assignee: Robert Muir  (was: Mark Miller)

> Persian Analyzer
> ----------------
>
>                 Key: LUCENE-1628
>                 URL: https://issues.apache.org/jira/browse/LUCENE-1628
>             Project: Lucene - Java
>          Issue Type: New Feature
>          Components: contrib/analyzers
>            Reporter: Robert Muir
>            Assignee: Robert Muir
>            Priority: Minor
>             Fix For: 2.9
>
>         Attachments: LUCENE-1628.patch, LUCENE-1628.patch, LUCENE-1628.patch, LUCENE-1628.patch, LUCENE-1628.patch, LUCENE-1628.txt
>
>
> 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

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