5. The method of claim 4 , wherein the cost function includes a target cost that is indicative of a difference between a current FSM and an associated target HMM, wherein: the current FSM is one of the one or more FSMs, the associated target HMM is one of the one or more target HMMs, and the current FSM and the associated target HMM correspond to a same phoneme of one of the one more linguistic targets.
5. The method of claim 4 , wherein the cost function includes a target cost that is indicative of a difference between a current FSM and an associated target HMM, wherein: the current FSM is one of the one or more FSMs, the associated target HMM is one of the one or more target HMMs, and the current FSM and the associated target HMM correspond to a same phoneme of one of the one more linguistic targets. 6. The method of claim 5 , wherein the target cost is a Kullback-Leibler distance from the associated target HMM to the current FSM.