JIGSAW: Preference-Directed, Co-operative Scheduling

Theodore A. Linden and David Gaw

Techniques that enable humans and machines to cooperate in the solution of complex scheduling problems have evolved out of work on the dally allocation and scheduling of Tactical Air Force resources. A generalized, formal model of these applied techniques is being developed. It is called JIGSAW by analogy with the multi-agent, constructive process used when solving jigsaw puzzles. JIGSAW begins from this analogy and extends it by propagating local preferences into global statistics that dynamically influence the value and variable ordering decisions. The statistical projections also apply to abstract resources and time periods--allowing more opportunities to find a successful variable ordering by reserving abstract resources and deferring the choice of a specific resource or time pericxt

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