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Decision Tree Support Vector Machine based on Genetic Algorithm for fault diagnosis

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3 Author(s)
Qiang Wang ; Dept. of Control Sci. & Eng., Harbin Inst. of Technol., Harbin ; Huanhuan Chen ; Yi Shen

Decision tree support vector machine (DTSVM), which combines SVM and decision tree using the concept of dichotomy, is proposed to solve the multi-class fault diagnosis tasks. Since the classification performance of DTSVM is closely related to its structure, genetic algorithm is introduced into the formation of decision tree, to cluster the multi-classes with maximum distance between the clustering centers of the two sub-classes, so that the most separable classes would be separated at each node of decision tree. The results of numerical simulations conducted on three datasets compared with ldquoone-against-allrdquo and ldquoone-against-onerdquo, show that the proposed method has better performance and higher generalization ability than the two conventional methods.

Published in:

Automation and Logistics, 2008. ICAL 2008. IEEE International Conference on

Date of Conference:

1-3 Sept. 2008

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