Journal of Korean Society of Industrial and Systems Engineering (산업경영시스템학회지)

Society of Korea Industrial and System Engineering (한국산업경영시스템학회)
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Design of Modified ${\bar{x}}$-s Control Chart based on Robust Estimation

로버스트 추정에 근거한 수정된 ${\bar{x}}$-s 관리도의 설계

  • Chung, Young-Bae (Dept. of Industrial and Management Engineering, Incheon National University) ;
  • Kim, Yon-Soo (Dept. of Industrial and Management Engineering, Incheon National University)
  • 정영배 (인천대학교 산업경영공학과) ;
  • 김연수 (인천대학교 산업경영공학과)
  • Received : 2015.01.19
  • Accepted : 2015.03.10
  • Published : 2015.03.31
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Abstract

Control charts are generally used for process control, but the role of traditional control charts have been limited in case of a non-contaminated process. Traditional ${\bar{x}}$-s control chart has not been activated well for such a problem because of trying to control processes as center line and control limits changed by the contaminated value. This paper suggests modified ${\bar{x}}$-s control chart based on robust estimation. In this paper, we consider the trimmed mean of the sample means and the trimmed mean of the sample standard deviations. By comparing with ARL value, the responding results are decided. The comparison resultant results of traditional control chart and modified control chart are contrasted.

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References

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