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Showing 1 to 3 of 3 for “"Cumulative sum charts"”.
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Dynamic Probability Control Limits for Risk-Adjusted Bernoulli Cumulative Sum Charts
The risk-adjusted Bernoulli cumulative sum (CUSUM) chart developed by Steiner et al. (2000) is an increasingly popular tool for monitoring clinical and surgical performance. In practice, however, use of a fixed control limit for the chart leads to quite variable in-control average run length (ARL) …
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Economically optimum design of cusum charts when there is a multiplicity of assignable causes
This study is concerned with the design of cumulative sum charts based on a minimum cost criterion when there are multiple assignable causes occurring randomly, but with known effect. A cost model is developed that relates the design parameters (i.e. sampling interval, decision limit, reference …
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Monitoring for a Shift in a Process Covariance Matrix Using the Generalized Variance
The commonly recommended charts for monitoring the mean vector are affected by a shift in the covariance matrix. As in the univariate case, a chart for monitoring for a change in the covariance matrix should be examined first before examining the chart used to monitor for a change in the mean …