A CUSUM chart using absolute sample values to monitor process mean and variance

  • Zhang Wu, Mei Yang
  • Published 2009 in
    2009 IEEE International Conference on Industrial…

Abstract

In Statistical Process Control (SPC), when dealing with a quality characteristic x that is a variable, it is usually necessary to monitor both the mean value and variability. By inspecting the absolute value of sample mean shift, a single CUSUM chart (called the ABS CUSUM chart) has been devised by an optimization algorithm and fully investigated for this… (More)

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