본문 바로가기
HOME> 논문 > 논문 검색상세

논문 상세정보

Adaptive multivariate double sampling and variable sampling interval Hotelling's T2 charts

Khatun, Mahfuza (School of Mathematical Sciences, Universiti Sains Malaysia, Penang, Malaysia ) ; Khoo, Michael B.C. (School of Mathematical Sciences, Universiti Sains Malaysia, Penang, Malaysia ) ; Yeong, W.C. (Department of Operations and Management Information Systems, Faculty of Business and Accountancy, Universiti Malaya, Kuala Lumpur, Malaysia ) ; Teoh, W.L. (School of Mathematical and Computer Sciences, Heriot‐Watt University Malaysia, Putrajaya, Malaysia ) ; Chong, Z.L. (Department of Physical and Mathematical Science, Faculty of Science, Universiti Tunku Abdul Rahman, Jalan Universiti, Kampar, Perak, Malaysia ) ;
  • 초록  

    Abstract In this article, two adaptive multivariate charts, which combine the double sampling (DS) and variable sampling interval (VSI) features, called the adaptive multivariate double sampling variable sampling interval T 2 (AMDSVSI T 2 ) and the adaptive multivariate double sampling variable sampling interval combined T 2 (AMDSVSIC T 2 ) charts, are proposed. The real purpose of using the proposed charts is to provide flexibility by enabling the sampling interval length of the DS T 2 chart to be varied so that the chart's sensitivity can be enhanced. The fundamental difference between the two proposed charts is that when a second sample is taken, the AMDSVSI T 2 chart uses the information of the combined sample mean vectors while the AMDSVSIC T 2 chart uses the information of the combined T 2 statistics, in deciding about the process status. This research is motivated by existing combined DS X¯ and VSI X¯ charts in the literature, which show convincing performance improvement over the standard DS X¯ chart. Consequently, it is believed that adopting this existing approach in the multivariate case will enable superior multivariate DS charts to be proposed. Numerical results show that the proposed charts outperform the existing standard T 2 and other adaptive multivariate charts, in detecting shifts in the mean vector, for the zero‐state and steady‐state cases. The performances of both charts when the shift sizes in the mean vector are unknown are also measured. The application of the AMDSVSI T 2 chart is illustrated with an example.


  • 주제어

    average time to signal .   double sampling .   expected average time to signal .   variable sampling interval.  

 활용도 분석

  • 상세보기

    amChart 영역
  • 원문보기

    amChart 영역

원문보기

무료다운로드
  • 원문이 없습니다.
유료다운로드

유료 다운로드의 경우 해당 사이트의 정책에 따라 신규 회원가입, 로그인, 유료 구매 등이 필요할 수 있습니다. 해당 사이트에서 발생하는 귀하의 모든 정보활동은 NDSL의 서비스 정책과 무관합니다.

원문복사신청을 하시면, 일부 해외 인쇄학술지의 경우 외국학술지지원센터(FRIC)에서
무료 원문복사 서비스를 제공합니다.

NDSL에서는 해당 원문을 복사서비스하고 있습니다. 위의 원문복사신청 또는 장바구니 담기를 통하여 원문복사서비스 이용이 가능합니다.

이 논문과 함께 출판된 논문 + 더보기