lucene-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Uwe Schindler (JIRA)" <j...@apache.org>
Subject [jira] Issue Comment Edited: (LUCENE-1629) contrib intelligent Analyzer for Chinese
Date Mon, 11 May 2009 14:45:45 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-1629?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12708060#action_12708060
] 

Uwe Schindler edited comment on LUCENE-1629 at 5/11/09 7:44 AM:
----------------------------------------------------------------

Did the <jar> ANT task also adds the non *.class files? During compilation, the additional
files must be copied to the build directory, this is normally done by an additional copy task
(I do it in this way). The Packager then packs all files below build into the jar file. Maybe
the build script must be modified?
I will try this out later.

      was (Author: thetaphi):
    Did the <jar> ANT task also adds the non *.class files? During compilation, the
additional files must be copied to the build directory, this is normally done by an additional
copy task (I do it in this way). The Packager then packs all files below build into the. Maybe
the build script must be modified.
I will try this out later.
  
> contrib intelligent Analyzer for Chinese
> ----------------------------------------
>
>                 Key: LUCENE-1629
>                 URL: https://issues.apache.org/jira/browse/LUCENE-1629
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: contrib/analyzers
>    Affects Versions: 2.4.1
>         Environment: for java 1.5 or higher, lucene 2.4.1
>            Reporter: Xiaoping Gao
>            Assignee: Michael McCandless
>             Fix For: 2.9
>
>         Attachments: analysis-data.zip, bigramdict.mem, coredict.mem, LUCENE-1629-java1.4.patch
>
>
> I wrote a Analyzer for apache lucene for analyzing sentences in Chinese language. it's
called "imdict-chinese-analyzer", the project on google code is here: http://code.google.com/p/imdict-chinese-analyzer/
> In Chinese, "我是中国人"(I am Chinese), should be tokenized as "我"(I)   "是"(am)
  "中国人"(Chinese), not "我" "是中" "国人". So the analyzer must handle each sentence
properly, or there will be mis-understandings everywhere in the index constructed by Lucene,
and the accuracy of the search engine will be affected seriously!
> Although there are two analyzer packages in apache repository which can handle Chinese:
ChineseAnalyzer and CJKAnalyzer, they take each character or every two adjoining characters
as a single word, this is obviously not true in reality, also this strategy will increase
the index size and hurt the performance baddly.
> The algorithm of imdict-chinese-analyzer is based on Hidden Markov Model (HMM), so it
can tokenize chinese sentence in a really intelligent way. Tokenizaion accuracy of this model
is above 90% according to the paper "HHMM-based Chinese Lexical analyzer ICTCLAL" while other
analyzer's is about 60%.
> As imdict-chinese-analyzer is a really fast and intelligent. I want to contribute it
to the apache lucene repository.

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.


---------------------------------------------------------------------
To unsubscribe, e-mail: java-dev-unsubscribe@lucene.apache.org
For additional commands, e-mail: java-dev-help@lucene.apache.org


Mime
View raw message