Ted Pedersen

NAME

treebankFreq.pl - Compute Information Content from Penn Treebank 2

SYNOPSIS

 treebankFreq.pl [--outfile=OUTFILE [--stopfile=STOPFILE] 
       [--wnpath=WNPATH] [--resnik] [--smooth=SCHEME] PATH 
        | --help --version]

DESCRIPTION

This program reads the Penn Treebank, Release 2, from the Linguistic Data Consortium, http://ldc.upenn.edu, and computes the frequency counts for each synset in WordNet. These frequency counts are used by the Lin, Resnik, and Jiang & Conrath measures of semantic relatedness to calculate the information content values of concepts. The output is generated in a format as required by the WordNet::Similarity modules for computing semantic relatedness.

A more detailed description of how information content is calculated can be found in rawtextFreq.pl. This program uses exactly the same techniques as described there.

OPTIONS

--outfile=filename

    The name of a file to which output should be written

--stopfile=filename

    A file containing a list of stop listed words that will not be
    considered in the frequency counts.  A sample file can be down-
    loaded from
    http://www.d.umn.edu/~tpederse/Group01/WordNet/words.txt

--wnpath=path

    Location of the WordNet data files (e.g.,
    /usr/local/WordNet-3.0/dict)

--resnik

    Use Resnik (1995) frequency counting

--smooth=SCHEME

    Smoothing should used on the probabilities computed.  SCHEME can
    only be ADD1 at this time

--help

    Show a help message

--version

    Display version information

PATH

    Path to the raw Wall Stree Journal portion of the Treebank corpus.
    This is usually in the /raw/wsj subdirectory of the Treebank
    installation.  Thus, you might run this program as

        treebankFreq.pl [OPTIONS] /home/sid/treebank/raw/wsj

BUGS

Report to WordNet::Similarity mailing list : http://groups.yahoo.com/group/wn-similarity

SEE ALSO

WordNet::Similarity

Penn Treebank : http://ldc.upenn.edu,

WordNet home page : http://wordnet.princeton.edu

WordNet::Similarity home page : http://wn-similarity.sourceforge.net

AUTHORS

 Ted Pedersen, University of Minnesota, Duluth
 tpederse at d.umn.edu

 Satanjeev Banerjee, Carnegie Mellon University, Pittsburgh
 banerjee+ at cs.cmu.edu

 Siddharth Patwardhan, University of Utah, Salt Lake City
 sidd at cs.utah.edu

COPYRIGHT

Copyright (c) 2005-2008, Ted Pedersen, Satanjeev Banerjee, and Siddharth Patwardhan

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.




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