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From "Lance Norskog (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (SOLR-3653) Custom bigramming filter for to handle Smart Chinese edge cases
Date Mon, 24 Sep 2012 02:49:07 GMT

     [ https://issues.apache.org/jira/browse/SOLR-3653?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Lance Norskog updated SOLR-3653:
--------------------------------

    Attachment: translations_450.five2thirteen.txt
                translations_first_500.trigrams.txt
                translations_first_500.quad.txt
    
> Custom bigramming filter for to handle Smart Chinese edge cases
> ---------------------------------------------------------------
>
>                 Key: SOLR-3653
>                 URL: https://issues.apache.org/jira/browse/SOLR-3653
>             Project: Solr
>          Issue Type: New Feature
>          Components: Schema and Analysis
>            Reporter: Lance Norskog
>         Attachments: SmartChineseType.pdf, SOLR-3653.patch, translations_450.five2thirteen.txt,
translations_first_500.quad.txt, translations_first_500.trigrams.txt
>
>
> The "Smart" Simplified Chinese toolkit in lucene/analysis/smartcn does not work in some
edge cases. It fails to split certain words which were not part of the dictionary or training
corpus. 
> This patch supplies a bigramming class to handle these occasional mistakes. The algorithm
creates bigrams out of all "words" longer than two ideograms.

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