centanr~cc.gatech.edu

This paper describes ongoing research on the develop-ment of a hybrid planning system that integrates case-based reasoning (CBR) methods into SIPE-2,t a gen-erative planning system. Novel aspects of this work include the integration of CBR methods with a hier-archical task network (HTN) planner; the estimation of adaptation cost based on a classification of planning conditions; the reuse of plans using SIPE-2’s replan-ning techniques; the extraction and application of ad-vice from retrieved cases to guide planning in a form of plan replay; the representation and use of opaque constraints, which describe the human planner’s deci-sion factors; and the provision of case-based support for managing a distributed, continuous planning process