Overlay as the Basic Operation for Discourse Processing in a Multimodal Dialogue System
J. Alexandersson, and T. Becker. Proceedings of the IJCAI-01 Workshop on Knowledge and Reasoning in Practical Dialogue Systems, page 1-7. (2001)
We describe a nonmonotonic operation on typed feature structures - overlay - and show how it is applied to discourse processing in a multimodal dialogue system. A detailed example highlights the necessity and strength of such an operation.