References
  1. Twitter NLP and Part-of-Speech Tagging - Carnegie Mellon Univ.
  2. Stanford POS Tagger
  3. Stanford Named Entity Recognizer
  4. Open source NLP tool GATE
  5. Python Natural Language Toolkit NLTK (http://www.nltk.org)
  6. How to do POS tagging using NLP POS tagger in python?
  7. http://www.galalaly.me/index.php/2011/05/tagging-text-with-stanford-pos-tagger-in-java-applications/
  8. http://www.lexalytics.com/technical-info/named-entity-extraction
  9. D.H. Cunningham, D.D. Maynard, D.K. Bontcheva, and M.V. Tablan. GATE: A framework and graphical development environment for robust NLP tools and applications. In ACL, 2002.