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From "Christian Moen (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LUCENE-3767) Explore streaming Viterbi search in Kuromoji
Date Sat, 03 Mar 2012 09:04:05 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-3767?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13221544#comment-13221544
] 

Christian Moen commented on LUCENE-3767:
----------------------------------------

Thanks, Mike.  I'll commit this to {{trunk}} tomorrow and backport to {{branch_3x}} as well.
                
> Explore streaming Viterbi search in Kuromoji
> --------------------------------------------
>
>                 Key: LUCENE-3767
>                 URL: https://issues.apache.org/jira/browse/LUCENE-3767
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: modules/analysis
>            Reporter: Michael McCandless
>            Assignee: Christian Moen
>             Fix For: 3.6, 4.0
>
>         Attachments: LUCENE-3767.patch, LUCENE-3767.patch, LUCENE-3767.patch, LUCENE-3767.patch,
LUCENE-3767.patch, SolrXml-5498.xml, compound_diffs.txt
>
>
> I've been playing with the idea of changing the Kuromoji viterbi
> search to be 2 passes (intersect, backtrace) instead of 4 passes
> (break into sentences, intersect, score, backtrace)... this is very
> much a work in progress, so I'm just getting my current state up.
> It's got tons of nocommits, doesn't properly handle the user dict nor
> extended modes yet, etc.
> One thing I'm playing with is to add a double backtrace for the long
> compound tokens, ie, instead of penalizing these tokens so that
> shorter tokens are picked, leave the scores unchanged but on backtrace
> take that penalty and use it as a threshold for a 2nd best
> segmentation...

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