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From "Kazuaki Hiraga (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (LUCENE-3921) Add decompose compound Japanese Katakana token capability to Kuromoji
Date Mon, 26 Mar 2012 08:24:26 GMT

     [ https://issues.apache.org/jira/browse/LUCENE-3921?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Kazuaki Hiraga updated LUCENE-3921:
-----------------------------------

    Environment: Cent OS 5, IPA Dictionary, Run with "Search mdoe"  (was: Cent OS 5, IPA Dictionary)
    
> Add decompose compound Japanese Katakana token capability to Kuromoji
> ---------------------------------------------------------------------
>
>                 Key: LUCENE-3921
>                 URL: https://issues.apache.org/jira/browse/LUCENE-3921
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: modules/analysis
>    Affects Versions: 4.0
>         Environment: Cent OS 5, IPA Dictionary, Run with "Search mdoe"
>            Reporter: Kazuaki Hiraga
>              Labels: features
>
> Japanese morphological analyzer, Kuromoji doesn't have a capability to decompose every
Japanese Katakana compound tokens to sub-tokens. It seems that some Katakana tokens can be
decomposed, but it cannot be applied every Katakana compound tokens. For instance, "トートバッグ(tote
bag)" and "ショルダーバッグ" don't decompose into "トート バッグ" and "ショルダー
バッグ" although the IPA dictionary has "バッグ" in its entry.  I would like to apply
the decompose feature to every Katakana tokens if the sub-tokens are in the dictionary or
add the capability to force apply the decompose feature to every Katakana tokens.

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