Implements the Co-training Paper ( A Blum, T Mitchell, COLT-98 ) in a single ipython-notebook file. Uses the original dataset: http://www.cs.cmu.edu/afs/cs.cmu.edu/project/theo-51/www/co-training/data/ The code is inspired from the following sources: http://stackoverflow.com/questions/10098533/implementing-bag-of-words-naive-bayes-classifier-in-nltk http://radimrehurek.com/data_science_python/ http://stackoverflow.com/questions/15507172/how-to-get-bag-of-words-from-textual-data Python-dependencies: Scikit-learn, Python-nltk, BeautifulSoup and TextBlob libraries.