Reference: Confrey, T. & Hayes-Roth, B. Knowledge Based Strategy Generalization. KSL, March, 1990.
Abstract: WATCH is a system that performs knowledge level learning within the BB1 blackboard system environment. WATCH learns strategic knowledge by observing or "watching" the actions an expert uses to solve a problem. By its very nature however, the strategies WATCH finds are very problem specific and cannot be used to solve a very large class of problems. This paper describes MetaWATCH, WATCH output strategies in the context of the problem they solve and finds the common abstraction. This allows it to learn strategies applicable to a wider range of problems.