Bigrams contains bigram count, bigram probability and total probability calculation using bigram smoothing and Good Turing algorithms for a given sentence.
POS Tagger tags a given sentence POS tags based on the Brills transformation algorithm.
HMM Decoding: Viterbi Algorithm - Implementing viterbi algorithm for an example HMM.
Word Sense Disambiguation: Implementation of Lesk algorithm for finding word sense disambiguation.