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Journal of Korean Society for Quality Management > Volume 25(3); 1997 > Article
Journal of Korean Society for Quality Management 1997;25(3): 39-.
Markov Chain Method for Monitoring Several Correlated Quality Characteristics with Variable Sampling Intervals
ABSTRACT
Markov chain method to evaluate the properties of control charts with variable sampling intervals(VSI0 for simultaneously monitoring several correlated quality characteristics under multivariate normal process are investigated. For comparing the efficiencies and properties of multivariate control charts, we consider multivariate Shewhart, CUSUM and EWMA charts in terms of average time to signal(ATS) and average number of samples to signal(ANSS). We obtained stabilized numerical results with Markov chain method when the number of transient state is greater than 100.
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