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https://issues.apache.org/jira/browse/LUCENE-2023?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12793044#action_12793044
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Michael McCandless commented on LUCENE-2023:
--------------------------------------------

I think given that this package is brand new, and in contrib (no back compat 
promise unless explicitly stated), and Robert has some solid improvements, it 
should be fine to make non-back-compatible changes here.

Also I think we should only do this for 3.1?  This is a big change... and it 
breaks back compat.  It shouldn't be backported to past releases?

> Improve performance of SmartChineseAnalyzer
> -------------------------------------------
>
>                 Key: LUCENE-2023
>                 URL: https://issues.apache.org/jira/browse/LUCENE-2023
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: contrib/analyzers
>            Reporter: Robert Muir
>            Assignee: Robert Muir
>            Priority: Minor
>             Fix For: 3.1
>
>         Attachments: LUCENE-2023.patch, LUCENE-2023.patch, LUCENE-2023.patch, 
> LUCENE-2023.patch, LUCENE-2023.patch, LUCENE-2023.patch, LUCENE-2023.patch, 
> LUCENE-2023.patch
>
>
> I've noticed SmartChineseAnalyzer is a bit slow, compared to say CJKAnalyzer 
> on chinese text.
> This patch improves the internal hhmm implementation. 
> Time to index my chinese corpus is 75% of the previous time.

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