Hybrid Feature Selection in Fault Diagnosis
To reduce complexity in design of fault diagnosis system for large scale equipments, a hybrid feature selection algorithm is put forth. By introduction of Markov Blanket, reluctant features can be effectively eliminated to decrease the feature space for input parameters of diagnosis system design. An improved ChISquare method with introduction of frequency, distribution and concentration is adopted to improve the relevance evaluation performance of the Markov Blanket. The hybrid feature selection algorithm showed high performance in design and implementation of an aeroengine automatic fault diagnosis system based on both neural network and decision tree.
feature selection fault dianosis Markov blanket
Jian-Feng Yan
School of Computer Science & Technology Soochow University Suzhou, China
国际会议
成都
英文
1-5
2010-04-16(万方平台首次上网日期,不代表论文的发表时间)