Click on the following links. Please note these will open in a new window.

• AI::Categorizer
  An easy-to-use Perl package for text classification, with several classification algorithms. 
   

• MALLET 
  A collection of Java tools for statistical language processing, including text classification 

• NLTK 
  A comprehensive toolkit for natural language processing, which includes software for text classification

Datasets:

• Reuters topic classification data
   

• Deception data

• Language identification data
  See also the resources under Supervised Learning