The third tier is the knowledge base (KB) that The three-tiered discourse representation defined in describes the belief system of one agent in the (Luperfoy, 1991) is applied to multimodal humandialogue, namely, the backend system being interfaced computer interface (HCI) dialogues. In the applied to. Figure 1 diagrams a partitioning of the system the three tiers are (1) a linguistic analysis information available to a dialogue processing agent. (morphological, syntactic, sentential semantic) of This partitioning gives rise to the three discourse tiers input and output communicative events including proposed, and is motivated, in part, by the distinct keyboard-entered.
