2003
DOI: 10.1080/00224065.2003.11980233
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The Changepoint Model for Statistical Process Control

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Cited by 319 publications
(189 citation statements)
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“…a nite sequence of independent random variables (X , ·, Xn), where x t is a particular realization of X i at the point in time (t i ), the segments before {X , ·, X k } and after {X k+ , ·, Xn} a breakpoint (T = k) the distribution of the data is di erent, and this change can indeed be detected using a two sample hypothesis test [28]. In the present study, since the modelled time series were of Gaussian distribution, the Student-ttuned for detecting changes in the mean [36] -Bartlett -designed for nding changes in the variance [50] -and Generalized Likelihood Ratio (GLR) statistics -originally tuned for detecting changes in both [51] -were used and compared on the di erently modi ed time series. The Average Run Length (ARL0) -as described in quality control literature [53] -was set to 200, which corresponds to α=0.95, the startup sequence (S) was set to 2,8,10 (corresponding to the default setting 10%=20 pcs.…”
Section: Sequential Changepoint Detection Via the Cpm Methodsmentioning
confidence: 99%
See 2 more Smart Citations
“…a nite sequence of independent random variables (X , ·, Xn), where x t is a particular realization of X i at the point in time (t i ), the segments before {X , ·, X k } and after {X k+ , ·, Xn} a breakpoint (T = k) the distribution of the data is di erent, and this change can indeed be detected using a two sample hypothesis test [28]. In the present study, since the modelled time series were of Gaussian distribution, the Student-ttuned for detecting changes in the mean [36] -Bartlett -designed for nding changes in the variance [50] -and Generalized Likelihood Ratio (GLR) statistics -originally tuned for detecting changes in both [51] -were used and compared on the di erently modi ed time series. The Average Run Length (ARL0) -as described in quality control literature [53] -was set to 200, which corresponds to α=0.95, the startup sequence (S) was set to 2,8,10 (corresponding to the default setting 10%=20 pcs.…”
Section: Sequential Changepoint Detection Via the Cpm Methodsmentioning
confidence: 99%
“…The foundations of the Change Point Model (CPM) framework were laid by Hawkins et al [36], and Hawkins & Zamba [50] to detect changepoints in variance and/or the mean of Gaussian random variables. Numerous CPMs have so far been developed to be applied within this framework to suit the conditions of variously distributed data: parametric, with breakpoints of di erent origin such as shifts in mean or variance [51], or non-parametric [52], as well.…”
Section: Sequential Changepoint Detection Via the Cpm Methodsmentioning
confidence: 99%
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“…In our work we employ Student-t test statistic, as in Hawkins et al (2003), which is used in order to detect mean changes in a Gaussian sequence. And finally we use Bartlett test statistic defined in Snedecor and Cochran (1989) and further improved in Hawkins and Zamba (2005), which is aimed at variance changes detection.…”
Section: Gaussian Sequence Modelsmentioning
confidence: 99%
“…We are concerned with ongoing monitoring to detect assignable causes in the process in phase II controlling. Useful recognitions of phase I and phase II applications have been studied already, for example, by Kang and Albin (2000), Woodall (2000), Hawkins et al (2003), Woodall et al (2004), Montgomery (2005), and Jensen et al (2006).…”
Section: Introductionmentioning
confidence: 99%