Paper: A Metaplan Model For Problem-Solving Discourse

ACL ID E89-1005
Title A Metaplan Model For Problem-Solving Discourse
Venue Annual Meeting of The European Chapter of The Association of Computational Linguistics
Session Main Conference
Year 1989

The structure of problem-solving discourse in the expert advising setting can be modeled by adding a layer of metaplans to a plan-based model of the task domain. Classes of metaplans are introduced to model both the agent's gradual refinement and instantiation of a domain plan for a task and the space of possible queries about preconditions or fillers for open variable slots that can be motivated by the exploration of par- ticular classes of domain plans. This metaplan structure can be used to track an agent's problem-solving progress and to predict at each point likely follow-on queries based on related domain plans. The model is implemented in the Pragma system where it is used to suggest cor- rections for ill-formed input.