Natural Language Toolkit

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Natural Language Toolkit
Original author(s) Steven Bird, Edward Loper, Ewan Klein
Developer(s) NLTK - Developers and contributors
Initial release 2001 (2001)[1]
Stable release 2.0.4 / 7 November 2012 (2012-11-07)[2]
Preview release 3.0a0 / 14 January 2013 (2013-01-14)
Written in Python
Type Natural language processing
License Apache 2.0[3]
Website nltk.org
Parse tree generated with NLTK

The Natural Language Toolkit, or more commonly NLTK, is a suite of libraries and programs for symbolic and statistical natural language processing (NLP) for the Python programming language. NLTK includes graphical demonstrations and sample data. It is accompanied by a book that explains the underlying concepts behind the language processing tasks supported by the toolkit,[4] plus a cookbook.[5]

NLTK is intended to support research and teaching in NLP or closely related areas, including empirical linguistics, cognitive science, artificial intelligence, information retrieval, and machine learning.[6] NLTK has been used successfully as a teaching tool, as an individual study tool, and as a platform for prototyping and building research systems.

See also

  • List of natural language processing toolkits

References

  1. ↑ project site on SourceForge; registered:2001-07-09
  2. ↑ "NLTK ChangeLog". nltk.org. Retrieved 2012-12-20. 
  3. ↑ License
  4. ↑ Bird, Steven; Ewan Klein; Edward Loper (2009). Natural Language Processing with Python. O'Reilly Media Inc. ISBN 0-596-51649-5. 
  5. ↑ Perkins, Jacob (2010). Python Text Processing with NLTK 2.0 Cookbook. Packt Publishing. ISBN 1849513600. 
  6. ↑ Bird, Steven; Ewan Klein; Edward Loper; Jason Baldridge (2008). Multidisciplinary instruction with the Natural Language Toolkit. Proceedings of the Third Workshop on Issues in Teaching Computational Linguistics, ACL. 

External links

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