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Multivariate control charts for process dispersion
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DOI：10.1080/00207540410001688419.png)
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摘要
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The multivariate extension of control charts for process dispersion is not as straightforward as that for the process mean. A general model and techniques that would encompass a wide range of problems encountered in practice is not available. In most cases, particular problems need to be handled in a specific manner. In this paper we consider several special cases of a process displacement affecting the covariance matrix and we develop control charts (both Shewhart-type and CUSUM) to detect these process changes.
Keyword:
QUALITY-CONTROL
VARIABLES
CUSUM
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IF:
7.3
论文数:
1.1W
被引数:
3.7W
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