Abstract

In producing plans, human planners take into account a variety of criteria that guide their decisions. Besides constraints imposed by the domain itself, these criteria often express preferences among alternative plans that achieve the given goals. Human planners can use these criteria for two important purposes: when asked to generate one plan, human planners are able to discern between an ordinary solution and a better quality one and propose the latter. when asked to generate several alternative plans, human planners are able to discern between similar alternative solutions and qualitatively di erent ones relaxing di erent criteria to explore tradeo s.
Current AI planners are good at generating a solution that satis es the goals that they are given. AI planners often have a facility to use a plan evaluation function for the immediate needs of selecting a good solution during the search for a single plan. However, they …

Date

October 28, 1994

Authors

Brian Drabble, Yolanda Gil, Austin Tate