Research on Method of Case Base Data Mining Learning Based on Rough Set

Data mining based on rough set is introduced into CBR (Case-based Reasoning) system. And learning model of case base is established. The potential knowledge of case base is obtained and studied, through attribute reduction and attribute value reduction. Meanwhile, the structure and performance of case base is maintained and improved, through case reduction. The establishment of case base learning model raises the automaticity of knowledge acquisition and promotes the development of the CBR system positively. Then the process of learning is applied in the case base of fault diagnosis expert system of aircraft.