surveillance for detecting a change in the variance are evaluated. The differences are how the partial likelihood ratios are …

A system for detecting changes in an on-going process is needed in many situations. On-line monitoring (surveillance … monitoring one or several indicators, we can, early, detect a change in the processes of interest. There are several suggested … methods for multivariate surveillance, one of which is the Hotelling’s T2. Since one aim in surveillance is quick detection of …

in on-line monitoring. Earlier suggested statistical models are reviewed and the possibility of using them to describe … estimated functions varied considerably between years. For monitoring purposes we need models which focus on stable indicators …

Industrial production requires multivariate control charts to enable monitoring of several components. Recently there … has been an increased interest also in other areas such as detection of bioterrorism, spatial surveillance and transaction … challenges of evaluating multivariate surveillance methods. …

. This is also the aim of methods for statistical surveillance. Many results are available regarding the properties of … surveillance methods. We give a review of financial trading rules and use the theory of statistical surveillance to find properties … of some commonly used trading rules. In addition, a nonparametric and robust surveillance method is proposed as a trading …

not are made after each new observation. Statistical surveillance, which continuously evaluates the evidence, can be used … to ensure a quick and reliable detection. <p>In paper I, “Robust outbreak surveillance of epidemics in Sweden”, a semi …-parametric method of surveillance was suggested and studied. The properties of the method were evaluated both by application to Swedish …