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Showing 1 to 5 of 5 for “"Multivariate Control Charts"”.
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Multivariate control charts for the mean vector and variance-covariance matrix with variable sampling intervals
When using control charts to monitor a process it is frequently necessary to simultaneously monitor more than one parameter of the process. Multivariate control charts for monitoring the mean vector, for monitoring variance-covariance matrix and for simultaneously monitoring the mean vector and the …
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O método de Equação Integral com Quadratura Gaussiana para otimizar os parâmetros do gráfico de controle multivariado de Somas Acumuladas
… interest in techniques of statistical emergent control, such as applied multivariate control charts for monitoring processes that involve the simultaneous control of the quality characteristics or process variables correlated. In this work the method of Integral Equation with Gaussian Quadrature …
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An optimization of on-line monitoring of simple linear and polynomial quality functions
… interval (VSI) have been extended from multivariate control charts to the profile monitoring framework to enhance the power of the traditional T^2 chart in detecting shifts in linear quality models. Finding the optimal settings of the proposed schemes has been formulated as an …
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Process Monitoring with Multivariate Data:Varying Sample Sizes and Linear Profiles
Multivariate control charts are used to monitor a process when more than one quality variable associated with the process is being observed. The multivariate exponentially weighted moving average (MEWMA) control chart is one of the most commonly recommended tools for multivariate process …
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Univariate and Multivariate Surveillance Methods for Detecting Increases in Incidence Rates
… time are possibly correlated between regions. Multivariate techniques have been suggested for this situation, but many of these approaches have shortcomings which have been demonstrated in the quality control literature. In an attempt to remedy some of these shortcomings, a new control chart is …