Re: [Corpora-List] free parser for english

From: Jason Baldridge (jasonbaldridge@gmail.com)
Date: Tue Jan 16 2007 - 16:46:07 MET

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    Here are three Java parsers that may be of use:

    Dan Bikel's: http://www.cis.upenn.edu/~dbikel/software.html#stat-parser>
    OpenNLP Parser: https://sourceforge.net/projects/opennlp/
    MSTParser:
    http://www.seas.upenn.edu/~strctlrn/MSTParser/MSTParser.html
    <http://www.seas.upenn.edu/%7Estrctlrn/MSTParser/MSTParser.html>

    You may need to train models for English (though I believe there is an
    English parsing model available for the OpenNLP parser, which is based on
    Ratnarparkhi's maxent parser). If you do need to train models, small amounts
    of the Penn Treebank are available as part of the NLTK Toolkit, but for more
    accurate models you'll need access to the full Penn Treebank.

    You might also want to check out the C&C CCG parser, which comes with models
    and outputs various types of dependency structures:

    http://svn.ask.it.usyd.edu.au/trac/candc/wiki

    You won't get any tree structures from this parser (it produces categorial
    grammar derivations), but probably the dependency relations are all you need
    anyway. It is also one of the fastest parsers on offer. (But note that free
    usage is only for academic purposes.)

    Jason

    On 1/16/07, ben dbabis samira <bendbabis_samira@yahoo.fr> wrote:
    >
    > hi,
    > Thanks for answering to my mail.
    > I need exactly a free parser for english in java that generates as
    > output syntactic tree (with semantic dependency relations) of the sentence
    > introduced as input.
    > best regards;
    > Samira BEN DBABIS
    > MIRACL laboratory
    > Sfax, TUNISIA
    >
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