16. An interactive system, comprising the following components: a processor; a memory communicatively coupled to the processor, the memory having stored therein computer-executable instructions to implement the system including: a first component that analyzes a sequential human communications related to an underlying communicative intention, the component concurrently employing a utility based Bayesian decision model utilizing at least two of the communications to determine an action with a highest utility to facilitate achieving the intention; and a second component that performs the action when the underlying communicative intention is above a confidence threshold.
16. An interactive system, comprising the following components: a processor; a memory communicatively coupled to the processor, the memory having stored therein computer-executable instructions to implement the system including: a first component that analyzes a sequential human communications related to an underlying communicative intention, the component concurrently employing a utility based Bayesian decision model utilizing at least two of the communications to determine an action with a highest utility to facilitate achieving the intention; and a second component that performs the action when the underlying communicative intention is above a confidence threshold. 17. The system of claim 16 , wherein the first component includes speech, gestures and other modalities related to an underlying communicative intention, the component concurrently employing at least two of the communications modalities in determining an action to facilitate achieving the intention.