This code implements in C++ a basic left-right hidden Markov model

and corresponding Baum-Welch (ML) training algorithm. It is meant as

an example of the HMM algorithms described by L.Rabiner (1) and

others. Serious students are directed to the sources listed below for

a theoretical descr iption of the algorithm. KF Lee (2) offers an

especially good tutorial of how to build a speech recognition system

using hidden Markov models.