{"pk":30701,"title":"Patching up Old Plans","subtitle":null,"abstract":"Recent research has demonstrated the value of re-using old plans rather than creating plans from scratch. This approach to planning creates the need for efficient and flexible plan adaptation methods to transform a past plan to fit the current problem. A characteristic of plans is that they often fail. This creates the need for efficient and flexible plan repair methods. W e propose a uniform treatment of the two issues, plan adaptation and repair, based on a combination of Case-Base Reasoning and heuristics. Plan adaptation involves incremental modification of the old plan, and fixing of anticipated problems through similarity-based retrieval of cases that supply appropriate modifications. Plan repair involves explanation based retrieval of previous failures that supply possible repairs. A selected repair is then adapted to fit the current failure. The proposed approach gives a planner the flexibility to access a broad range of adaptation and repair strategies not available to planners that use either of the two methods in isolation.The approach has been implemented in the PERSUADER, a case-based planner that generates and repairs plans to resolve labor management disputes.","language":"eng","license":{"name":"","short_name":"","text":null,"url":""},"keywords":[],"section":"Paper Presentations","is_remote":true,"remote_url":"https://escholarship.org/uc/item/42z6d9k3","frozenauthors":[{"first_name":"Katia","middle_name":"","last_name":"Sycara","name_suffix":"","institution":"Carnegie Mellon University","department":""}],"date_submitted":null,"date_accepted":null,"date_published":"1988-01-01T18:00:00Z","render_galley":null,"galleys":[{"label":"PDF","type":"pdf","path":"https://journalpub.escholarship.org/cognitivesciencesociety/article/30701/galley/20550/download/"}]}