Journal of the Korean Data and Information Science Society

The Korean Data and Information Science Society (한국데이터정보과학회)
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Multivariate Shewhart control charts with variable sampling intervals

가변추출간격을 갖는 다변량 슈하르트 관리도

  • Cho, Gyo-Young (Department of Statistics, Kyungpook National University)
  • Received : 2010.05.10
  • Accepted : 2010.10.05
  • Published : 2010.11.30
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Abstract

The objective of this paper is to develop variable sampling interval multivariate control charts that can offer significant performance improvements compared to standard fixed sampling rate multivariate control charts. Most research on multivariate control charts has concentrated on the problem of monitoring the process mean, but here we consider the problem of simultaneously monitoring both the mean and variability of the process.

공정을 모니터링 하기 위한 전통적인 관리도는 표본들 사이의 일정한 추출간격에서 일정한 수의 표본을 취하여 만들어 지는 고정추출율 관리도이다. 본 연구의 목표는 표준적인 고정추출율을 갖는 다변량 관리도에 비하여 성능이 우수한 가변추출간격을 갖는 다변량 관리도를 개발하는데 있다. 대부분의 다변량 관리도에 대한 연구는 공정의 평균벡터를 모니터링 하는데 초점이 맞추어져 있다. 그러나 본 논문에서는 공정의 평균벡터와 분산-공분산을 동시에 모니터링 하기 위한 다변량 관리도를 연구한다. 가변추출간격을 갖는 다변량 슈하르트 관리도에 대하여 연구 하고자 한다.

Keywords

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