关键词: 实例推理, 实例检索, 相似度

Abstract: To deal with problems of similarity measurement and weights assignment in CaseBased Reasoning (CBR), a similarity computation model between range properties was introduced. This model unified various properties computation methods. To assign weights, an objective method based on the deviation information of similarity values among properties was proposed. Objective and subjective weights were combined to form synthesis weights. Finally, the similarity measurement and weights assignment methods were applied in a missile conception design CBR system. It was demonstrated that this method could improve case retrieval.

Key words: casebased reasoning, case retrieval, similarity, weight