Frisén, Marianne () (Statistical Research Unit, Department of Economics, School of Business, Economics and Law, Göteborg University) Andersson, Eva () (Statistical Research Unit, Department of Economics, School of Business, Economics and Law, Göteborg University) Schiöler, Linus () (Statistical Research Unit, Department of Economics, School of Business, Economics and Law, Göteborg University)
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Multivariate surveillance is of interest in many areas such as industrial production, bioterrorism detection, spatial surveillance, and financial transaction strategies. Some of the suggested approaches to multivariate surveillance have been multivariate counterparts to the univariate Shewhart, EWMA, and CUSUM methods. Our emphasis is on the special challenges of evaluating multivariate surveillance methods. Some new measures are suggested and the properties of several measures are demonstrated by applications to various situations. It is demonstrated that zero-state and steady-state ARL, which are widely used in univariate surveillance, should be used with care in multivariate surveillance.
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Paper provided by Statistical Research Unit, Department of Economics, School of Business, Economics and Law, Göteborg University in its series Research Reports with number
2009:1.