http://www.nltk.org/book/

Natural Language Processing with Python

– Analyzing Text with the Natural Language Toolkit

Steven Bird, Ewan Klein, and Edward Loper

This version of the NLTK book is updated for Python 3 and NLTK 3. The first edition of the book, published by O'Reilly, is available at http://nltk.org/book_1ed/. (There are currently no plans for a second edition of the book.)

• 0. Preface

• 1. Language Processing and Python

• 2. Accessing Text Corpora and Lexical Resources

• 3. Processing Raw Text

• 4. Writing Structured Programs

• 5. Categorizing and Tagging Words (minor fixes still required)

• 6. Learning to Classify Text

• 7. Extracting Information from Text

• 8. Analyzing Sentence Structure

• 9. Building Feature Based Grammars

• 10. Analyzing the Meaning of Sentences (minor fixes still required)

• 11. Managing Linguistic Data (minor fixes still required)

• 12. Afterword: Facing the Language Challenge

• Bibliography
  Term Index