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Posted to dev@lucene.apache.org by "Robert Muir (Resolved) (JIRA)" <ji...@apache.org> on 2011/12/29 06:26:31 UTC
[jira] [Resolved] (LUCENE-2906) Filter to process output of
ICUTokenizer and create overlapping bigrams for CJK
[ https://issues.apache.org/jira/browse/LUCENE-2906?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Robert Muir resolved LUCENE-2906.
---------------------------------
Resolution: Fixed
Committed, maybe in the future we enable this for StandardFilter (for good CJK behavior by default), but for now it seems good enough to have separate filters that handle the corner cases and all of unicode.
> Filter to process output of ICUTokenizer and create overlapping bigrams for CJK
> --------------------------------------------------------------------------------
>
> Key: LUCENE-2906
> URL: https://issues.apache.org/jira/browse/LUCENE-2906
> Project: Lucene - Java
> Issue Type: New Feature
> Components: modules/analysis
> Reporter: Tom Burton-West
> Assignee: Robert Muir
> Priority: Minor
> Fix For: 3.6, 4.0
>
> Attachments: LUCENE-2906.patch, LUCENE-2906.patch, LUCENE-2906.patch, LUCENE-2906.patch
>
>
> The ICUTokenizer produces unigrams for CJK. We would like to use the ICUTokenizer but have overlapping bigrams created for CJK as in the CJK Analyzer. This filter would take the output of the ICUtokenizer, read the ScriptAttribute and for selected scripts (Han, Kana), would produce overlapping bigrams.
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