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Mean Shifts Identification in Multivariate Autocorrelated Processes Based on PSO-SVM Pattern Recognizer

In: Proceedings of 2012 3rd International Asia Conference on Industrial Engineering and Management Innovation (IEMI2012)

Author

Listed:
  • Chi Zhang

    (University of Tianjin)

  • Zhen He

    (University of Tianjin)

Abstract

In multivariate statistical process control, interpretation of a signal issued by multivariate control charts is very useful to find source(s) of variation that result in the out-of-control condition. This paper develops a support vector machine(SVM) based model for multivariate autocorrelated processes to diagnose abnormal patterns of process mean changes, and to help identify abnormal variable(s) when residual T2 control chart issue an alarm. Particle swarm optimization (PSO) method is adopted to determine the values of penalty parameter and kernel parameter of the model to improve the performance of the SVM pattern recognizer. The results demonstrate that the proposed method provides an excellent performance in terms of accuracy of classifying patterns of out-of-control signals.

Suggested Citation

  • Chi Zhang & Zhen He, 2013. "Mean Shifts Identification in Multivariate Autocorrelated Processes Based on PSO-SVM Pattern Recognizer," Springer Books, in: Runliang Dou (ed.), Proceedings of 2012 3rd International Asia Conference on Industrial Engineering and Management Innovation (IEMI2012), edition 127, chapter 0, pages 225-232, Springer.
    • Handle: RePEc:spr:sprchp:978-3-642-33012-4_23
    DOI: 10.1007/978-3-642-33012-4_23
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