Simple implementation of N-Gram, tf-idf and Cosine similarity in Python
Check out NLTK package: http://www.nltk.org it has everything what you need For the cosine_similarity: def cosine_distance(u, v): “”” Returns the cosine of the angle between vectors v and u. This is equal to u.v / |u||v|. “”” return numpy.dot(u, v) / (math.sqrt(numpy.dot(u, u)) * math.sqrt(numpy.dot(v, v))) For ngrams: def ngrams(sequence, n, pad_left=False, pad_right=False, pad_symbol=None): “”” … Read more