Explore the close relationship between Bayesian belief nets and hidden Markov models as follows. (a) Prove that the forward and the backward equations for hidden Markov models are special cases of Eq....

Explore the close relationship between Bayesian belief nets and hidden Markov models as follows.

(a) Prove that the forward and the backward equations for hidden Markov models are special cases of Eq. 84.

(b) Use your answer to explain the relationship between these two general classes of models.