26. The non-transitory computer-readable storage medium according to claim 25 , wherein the pseudo hidden Markov process is a double random process.
26. The non-transitory computer-readable storage medium according to claim 25 , wherein the pseudo hidden Markov process is a double random process. 27. The non-transitory computer-readable storage medium according to claim 26 , further comprising: defining a low-level statistical state machine modeling a behavioral cluster and a top-level statistical state machine with active behavioral clusters and an interaction among the active behavioral clusters.