The Research On Case-based Reasoning Based On Knowledge Discovery Of Database

To get a solution, people often search all the related knowledge units with the new problem in his memory, then integrate the high matched items to the process of solving the new problem. That is so called Cased-based Reasoning(abbr. CBR) which is better on learning from experiences. There is no places found where CBR is not applied in modern life. CBR has developed to a common, publicly tool of solving prolems and methods from once deserted reasoning pattern of knowledge.KDD is a pop area of study at present, which is covered by many subjects such as AI, Database, etc. With the expansive applications and exponent growth, people are eager to get newly tools and technologies more and more to extract interest information from large data source intelligently. KDD/DM is a Intelligent Data Analysis(IDA) technology proposed for that intention.In this paper after the introduction of the original of CBR, the author has given a brief description of the development steps of CBR, explored the the basic CBR theory and the models of CBR, put an emphasis on the study of CBR process. When summaring the seven formations of knowledge presentation and some mainstream knowledge reasoning methods of AI, an introduction of the brirth and evolving of KDD/DM is brought out. The author has examined the DM process steps and models and exemplifies the applications of KDD/DM in data processing walk and information decision-making in this paper.Based on previous sections, an emphasis on explaining how to apply the technology of KDD/DM to CBR system is laid. When analyzing the DM technologies and methods which is appropriate to be applied to CBR , the author has defined the tasks and stesps necessary implementing thus DM, gave many details of important methods and technologies when doing KDD/DM in the case base of CBR, especially about applying Rough set theory to KDD on problem-solution space to get a relationship discovery on space level, which lays a thick base on R5 model by GFinnie through power and effective maths tools-Rough set Theory. At last a CBRsystem prototype based on KDD/DM is given out.