Journal ArticleDOI
The Performance of Multivariate Control Charts in the Presence of Measurement Error
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In this paper, a model demonstrates that the performance of multivariate control charting methods based on measured covariates is not directionally invariant to shifts in the mean vector of the underlying process variables.Abstract:
A model demonstrates that the performance of multivariate control charting methods based on measured covariates is not directionally invariant to shifts in the mean vector of the underlying process variables. This is the case even if it is directionally..read more
Citations
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Journal ArticleDOI
Multivariate statistical process control charts: an overview
TL;DR: In this paper, the basic procedures for the implementation of multivariate statistical process control via control charting are discussed, and the most significant methods for the interpretation of an out-of-control signal are described.
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Multivariate Statistical Process Control Charts: An Overview
TL;DR: In this paper, the basic procedures for the implementation of multivariate statistical process control via control charting are discussed, and the most significant methods for the interpretation of an out-of-control signal are described.
Journal ArticleDOI
Effect of Measurement Error on Shewhart Control Charts
TL;DR: Significant measurement error often exists in quality control applications as mentioned in this paper, which is known to result in reduced power to detect a given change in the mean or variance of a quality chara...
Journal ArticleDOI
SPC Procedures for Monitoring Autocorrelated Processes
TL;DR: The aim of this paper is to present, to apply and to evaluate control charts that are designed to account for autocorrelation.
Journal ArticleDOI
Effect of measurement error and autocorrelation on the X¯ chart
TL;DR: This work builds-up the samples with non-neighbouring items, according to the time they were produced, to counteract the undesired effect of autocorrelation.
References
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Journal ArticleDOI
A multivariate exponentially weighted moving average control chart
TL;DR: In this article, a multivariate extension of the exponentially weighted moving average (EWMA) control chart is presented, and guidelines given for designing this easy-to-implement multivariate procedure.
Journal ArticleDOI
A review of multivariate control charts
TL;DR: A review of the literature on control charts for multivariate quality control (MQC) is given, with a concentration on developments occurring since the mid-1980s as mentioned in this paper, where several recent articles that give methods for interpreting an out-of control signal on a multivariate control chart are analyzed and discussed.
Journal ArticleDOI
Comparisons of Multivariate CUSUM Charts
TL;DR: In this paper, the authors consider several distinct approaches for controlling the mean of a multivariate normal process including two new and distinct multivariate CUSUM charts, several multiple univariate cusum charts, and a Shewhart x2 control chart.
Journal ArticleDOI
Multivariate quality control
TL;DR: In this paper, the authors discuss the motivation for multivariate quality control, and a discussion of some of the techniques currently available, focusing primarily on control charts and including the T2 -chart, the use of principal components anm some recent developments.