Extracting Fault Diagnosis Rules of Electronic Equipment Based on Rough Set

摘要

According to the characteristics of fault symptom, the method of extracting fault diagnosis rules based on rough set is presented. The method calculates the core and the series of reduction sets from discernibility matrix and discernibility function of the decision table. With the reduction sets as the first node, the network model of different reductive levels is developed. Its own rule sets with suitable confidence is extracted at each node. Example indicates that the model is rational and feasible.