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PATTERN
=======

Pattern is a web mining module for the Python programming language. It bundles tools for data mining (Google + Twitter + Wikipedia API, web spider, HTML DOM parser), natural language processing (tagger/chunker, n-gram search, sentiment analysis, WordNet), machine learning (vector space model, k-means clustering, Naive Bayes + k-NN + SVM classifiers) and network analysis (graph centrality and visualization). It is well documented and bundled with 30+ examples and 350+ unit tests. The source code is licensed under BSD and available from http://www.clips.ua.ac.be/pages/pattern. 


VERSION
=======

2.4

LICENSE
=======

BSD, see LICENSE.txt for further details.

INSTALLATION
============

Pattern is written for Python 2.5+ (no support for Python 3 yet). The module has no external dependencies except when using LSA in the pattern.vector module, which requires NumPy (installed by default on Mac OS X). To install Pattern so that it is available in all your scripts, unzip the download and from the command line do:
> cd pattern-2.4
> python setup.py install

If you have pip, you can automatically download and install from the PyPi repository:
> pip install pattern

If none of the above works, you can make Python aware of the module in three ways:
- Put the pattern folder in the same folder as your script.
- Put the pattern folder in the standard location for modules so it is available to all scripts:
  c:\python26\Lib\site-packages\ (Windows),
  /Library/Python/2.6/site-packages/ (Mac OS X),
  
  /usr/lib/python2.6/site-packages/ (Unix).
- Add the location of the module to sys.path in your script, before importing it:
  >>> MODULE = '/users/tom/desktop/pattern'
  >>> import sys; if MODULE not in sys.path: sys.path.append(MODULE)
  >>> from pattern.en import parse, Sentence

DOCUMENTATION
=============

http://www.clips.ua.ac.be/pages/pattern

REFERENCE
=========

De Smedt, T., Daelemans, W. (2012). Pattern for Python. Journal of Machine Learning Research, 13, 2031–2035.

BUNDLED DEPENDENCIES
====================

Pattern is bundled with the following algorithms and Python packages: 

- Beautiful Soup, Leonard Richardson
- Brill tagger, Eric Brill
- Brill tagger for Dutch, Jeroen Geertzen,
- Brill tagger for German, Gerold Schneider & Martin Volk
- English pluralization, Damian Conway
- Graph JavaScript framework, Aslak Hellesoy & Dave Hoover
- LIBSVM, Chih-Chung Chang & Chih-Jen Lin
- NetworkX centrality, Aric Hagberg, Dan Schult & Pieter Swart
- PDFMiner, Yusuke Shinyama
- PyWordNet, Oliver Steel
- simplejson, Bob Ippolito
- spelling corrector, Peter Norvig
- Universal Feed Parser, Mark Pilgrim
- WordNet, Christiane Fellbaum et al.

ACKNOWLEDGEMENTS
================

Authors: 
- Tom De Smedt ([email protected])
- Walter Daelemans

Contributors (chronological):
- Frederik De Bleser
- Jason Wiener
- Daniel Friesen
- Jeroen Geertzen
- Thomas Crombez
- Ken Williams
- Peteris Erins
- Rajesh Nair
- F. De Smedt
- Radim Řehůřek
- Tom Loredo
- John DeBovis
- Thomas Sileo
- Gerold Schneider
- Martin Volk
- Samuel Joseph