56. A method comprising: receiving example dialogs each comprising a sequence of natural language communications between two parties; applying a concept recognition process to automatically derive a representation of concepts embodied in each of the communications; using the sequences of communications to form a body of state-transition-state or stimulus-response information that enables a determination of an appropriate transition for any arbitrary communication that is received when in a particular one of the states; enabling a human agent to select a response after the appropriate transition is determined; and delivering the selected response to user.
57. The method of claim 56 also including using the concept representations to form clusters of communications that are related in the concepts that are embodied in them.