We argue that discourse plans must capture the intended causal and decompositional relations between communicative actions. We present a planning algorithm, DPOCL, that builds plan structures that properly capture these relations, and show how these structures are used to solve the problems that plagued previous discourse planners, and allow a system to participate effectively and flexibly in an ongoing dialogue.
['R. Michael Young', 'Johanna Moore', 'Martha E. Pollack']
Towards a Principled Representation of Discourse Plans