The Automated Mapping of Plans for Plan Recognition

Marcus J. Huber, Edmund H. Durfee, Michael P. Wellman

To coordinate with other agents in its environment, an agent needs models of what the other agents are trying to do. When communication is impossible or expensive, this information must be acquired indirectly via plan recognition. Typical approaches to plan recognition start with a specification of the possible plans the other agents may be following, and develop special techniques for discriminating among the possibilities. Perhaps more desirable would be a uniform procedure for mapping plans to general structures supporting inference based on uncertain and incomplete observations. In this paper, we describe a set of methods ~for converting plans represented in a flexible procedural language to observation models represented as probabilistic belief networks, and we outline issues in applying the resulting probabilistic models of agents when coordinating activity in physical domains.

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