Technique developing trends of case-based reasoning

Case-Based Reasoning(CBR) technique is the fore realm of AI and machine learning.As an incremental learning system,case-based reasoning makes the knowledge and rule obtainment bottleneck easy by learning from cases.This paper will describe the fundamental principle of CBR,The representation method of knowledge in a case and two kinds of Retrieve technologies-Tverskey and k-NN;It probes in depth the key problem in the realizing process of CBR-the problem of case revision,it introduces eight methods in case revision.It emphasizes the research and development trend of CBR.