Opportunistic Adaptation Knowledge Discovery

Adaptation has long been considered as the Achilles' heel of case-based reasoning since it requires some domain-specific knowledge that is difficult to acquire. In this paper, two strategies are combined in order to reduce the knowledge engineering cost induced by the Adaptation Knowledge (AK) acquisition task: AK is learned from the case base by the means of knowledge discovery techniques, and the AK acquisition sessions are opportunistically triggered, i.e., at problem-solving time. Case-Based Reasoning (CBR) is a reasoning paradigm based on the reuse of previous problem-solving experiences, called cases