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From "Pei Chen (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CTAKES-186) Add ClearNLP POSTagger as optional AE to choose from
Date Tue, 09 Apr 2013 20:26:15 GMT
Pei Chen created CTAKES-186:
-------------------------------

             Summary: Add ClearNLP POSTagger as optional AE to choose from
                 Key: CTAKES-186
                 URL: https://issues.apache.org/jira/browse/CTAKES-186
             Project: cTAKES
          Issue Type: New Feature
          Components: ctakes-pos-tagger
    Affects Versions: 3.0-incubating
            Reporter: Pei Chen
            Assignee: Pei Chen
            Priority: Minor
             Fix For: 3.1


Add ClearNLP POSTagger as optional AE to choose from.
While working on the Dependency Parser/SRL labeler,  we also have a POSTagger from ClearNLP.
 It is fairly simple and I have the code ready (also trained on the same data as the dep parser-
MiPaq/SHARP) to be checked-in.  
"The ClearNLP POS tagger shows more robust results on unknown words by generalizing lexical
features.  You can find the reference from this paper.
Fast and Robust Part-of-Speech Tagging Using Dynamic Model Selection, Jinho D. Choi, Martha
Palmer, Proceedings of the 50th Annual Meeting of the Association for Computational Linguistics
(ACL'12), 363-367, Jeju, Korea, 2012. [1] It also uses AdaGrad for machine learning, which
is a more advanced learning algorithm than maximum entropy used by OpenNLP."

[1] http://aclweb.org/anthology-new/P/P12/P12-2071.pdf


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