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From "Robert Muir (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LUCENE-3305) Kuromoji code donation - a new Japanese morphological analyzer
Date Thu, 12 Jan 2012 20:46:39 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-3305?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13185222#comment-13185222
] 

Robert Muir commented on LUCENE-3305:
-------------------------------------

Yes, thanks also to Uwe for lots of work compressing data and refactoring, and Mike for tuning
the fsts.
                
> Kuromoji code donation - a new Japanese morphological analyzer
> --------------------------------------------------------------
>
>                 Key: LUCENE-3305
>                 URL: https://issues.apache.org/jira/browse/LUCENE-3305
>             Project: Lucene - Java
>          Issue Type: New Feature
>          Components: modules/analysis
>            Reporter: Christian Moen
>            Assignee: Robert Muir
>             Fix For: 4.0
>
>         Attachments: Kuromoji short overview .pdf, LUCENE-3305.patch, LUCENE-3305.patch,
ip-clearance-Kuromoji.xml, ip-clearance-Kuromoji.xml, kuromoji-0.7.6-asf.tar.gz, kuromoji-0.7.6.tar.gz,
kuromoji-solr-0.5.3-asf.tar.gz, kuromoji-solr-0.5.3.tar.gz, wordid0.patch
>
>
> Atilika Inc. (アティリカ株式会社) would like to donate the Kuromoji Japanese
morphological analyzer to the Apache Software Foundation in the hope that it will be useful
to Lucene and Solr users in Japan and elsewhere.
> The project was started in 2010 since we couldn't find any high-quality, actively maintained
and easy-to-use Java-based Japanese morphological analyzers, and these become many of our
design goals for Kuromoji.
> Kuromoji also has a segmentation mode that is particularly useful for search, which we
hope will interest Lucene and Solr users.  Compound-nouns, such as 関西国際空港 (Kansai
International Airport) and 日本経済新聞 (Nikkei Newspaper), are segmented as one token
with most analyzers.  As a result, a search for 空港 (airport) or 新聞 (newspaper) will
not give you a for in these words.  Kuromoji can segment these words into 関西 国際 空港
and 日本 経済 新聞, which is generally what you would want for search and you'll get
a hit.
> We also wanted to make sure the technology has a license that makes it compatible with
other Apache Software Foundation software to maximize its usefulness.  Kuromoji has an Apache
License 2.0 and all code is currently owned by Atilika Inc.  The software has been developed
by my good friend and ex-colleague Masaru Hasegawa and myself.
> Kuromoji uses the so-called IPADIC for its dictionary/statistical model and its license
terms are described in NOTICE.txt.
> I'll upload code distributions and their corresponding hashes and I'd very much like
to start the code grant process.  I'm also happy to provide patches to integrate Kuromoji
into the codebase, if you prefer that.
> Please advise on how you'd like me to proceed with this.  Thank you.

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