Open source Java implementation of the TextRank algorithm by Mihalcea, et al.

See also:
  http://lit.csci.unt.edu/index.php/Graph-based_NLP

Author:
  Paco NATHAN    paco@sharethis.com

GitHub code repo:
  http://github.com/sharethis/textrank/

GoogleGroups discussion:
  http://groups.google.com/group/textrank-dev


NB: there is a known issue with use of JWNL (Java libraries for
WordNet) such that if the graph size exceeds a particular threshold,
then low-level Java I/O reads to the WordNet database on disk will
cause Java thread to block -- even though JVM tools show no blocked
threads.

A potential remedy is to dump WordNet, or at least the parts of it
used here, into some DBD structure with an in-memory cache.

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simple test:
	ant run

test with a specific data file FOO.txt

	ant -Ddata.file=FOO.txt run

build the JAR for export to another project:
	ant jar

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Sources for third-party JAR files:

commons-logging-1.1.1.jar
    http://commons.apache.org/downloads/download_logging.cgi

commons-math-1.2.jar
    http://commons.apache.org/downloads/download_math.cgi

log4j-1.2.15.jar
    http://logging.apache.org/log4j/1.2/download.html

porterstemmer.jar
    http://snowball.tartarus.org/download.php

opennlp-tools-1.3.0.jar
    http://opennlp.sourceforge.net/

maxent-2.4.0.jar                
    https://sourceforge.net/projects/maxent/

trove-2.0.2.jar
    http://trove4j.sourceforge.net/

jwnl-1.4rc1.jar
    http://sourceforge.net/projects/jwordnet

jdom-1-1.jar
    http://jdom.org/downloads/index.html