NLP, Artificial Intelligence, Machine Learning, Data Science, Pos Tagging.
a(s’,s) * b_s(O_t) here s’ refers to the previous state. Set backpointer[s,t] = previous tag from which we moved on to this tag. For example. In calculating V_2(2), we calculated the value taking NNP as a previous tag. Hence we will store backpointer[MD,will] = NNP & likewise. Once the nested loop