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From "Robert Muir (JIRA)" <>
Subject [jira] Commented: (LUCENE-2023) Improve performance of SmartChineseAnalyzer
Date Fri, 30 Oct 2009 18:27:59 GMT


Robert Muir commented on LUCENE-2023:

well, i'm more than willing to do the backport, if will be used.

for now, maybe someone can take a look and double-check the patch for trunk, smartcn is always
dangerous territory. :) 

(for the record the big bottleneck was the hashmap usage in these graphs, its rather silly
since its indexed by int, you know the number of values up front, etc)

> Improve performance of SmartChineseAnalyzer
> -------------------------------------------
>                 Key: LUCENE-2023
>                 URL:
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: contrib/analyzers
>            Reporter: Robert Muir
>            Assignee: Robert Muir
>            Priority: Minor
>             Fix For: 3.0
>         Attachments: LUCENE-2023.patch
> I've noticed SmartChineseAnalyzer is a bit slow, compared to say CJKAnalyzer on chinese
> This patch improves the internal hhmm implementation. 
> Time to index my chinese corpus is 75% of the previous time.

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