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Posted to dev@lucene.apache.org by "Christian Moen (Assigned) (JIRA)" <ji...@apache.org> on 2012/03/22 19:50:22 UTC
[jira] [Assigned] (LUCENE-3901) Add katakana stem filter to better
deal with certain katakana spelling variants
[ https://issues.apache.org/jira/browse/LUCENE-3901?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Christian Moen reassigned LUCENE-3901:
--------------------------------------
Assignee: Christian Moen
> Add katakana stem filter to better deal with certain katakana spelling variants
> -------------------------------------------------------------------------------
>
> Key: LUCENE-3901
> URL: https://issues.apache.org/jira/browse/LUCENE-3901
> Project: Lucene - Java
> Issue Type: New Feature
> Components: modules/analysis
> Reporter: Christian Moen
> Assignee: Christian Moen
> Fix For: 3.6, 4.0
>
> Attachments: LUCENE-3901.patch, LUCENE-3901.patch
>
>
> Many Japanese katakana words end in a long sound that is sometimes optional.
> For example, パーティー and パーティ are both perfectly valid for "party". Similarly we have センター and センタ that are variants of "center" as well as サーバー and サーバ for "server".
> I'm proposing that we add a katakana stemmer that removes this long sound if the terms are longer than a configurable length. It's also possible to add the variant as a synonym, but I think stemming is preferred from a ranking point of view.
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