Accession Number : ADA266308


Title :   The Control of Reasoning Under Uncertainty


Descriptive Note : Final rept. 1 Dec 1987-14 Feb 1991


Corporate Author : MASSACHUSETTS UNIV AMHERST DEPT OF COMPUTER SCIENCE


Personal Author(s) : Cohen, Paul R ; Hart, David M


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a266308.pdf


Report Date : 14 Feb 1991


Pagination or Media Count : 19


Abstract : The starting point of our research was to develop declarative representations of problem solving strategies and interpreters to select and execute appropriate strategies. One result was a 'strategy frame', a collection of fields or facets of strategies. These included the conditions under which strategies should be evoked, measures of progress, stopping conditions, resource requirements, and so on. We applied this result in a process control domain with some success, then began to search for a more realistic and demanding task. The Phoenix system, a realtime simulation of forest fire fighting in Yellowstone National Park, was an ideal testbed. In this context, our work on declarative representations of strategies followed two paths: We developed a declarative representation of the progress of plans, called envelopes. Envelopes provide early warning of plan failures, facilitate communication between agents, and help with monitoring and replanning in real time; and We began developing mathematical models of the architectures of agents that facilitate the design of agents for environments with different characteristics.


Descriptors :   *STRATEGY , *COMMAND AND CONTROL SYSTEMS , BATTLEFIELDS , REASONING , FAILURE , COMPUTER ARCHITECTURE , PLANNING


Subject Categories : Command, Control and Communications Systems


Distribution Statement : APPROVED FOR PUBLIC RELEASE