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 …

). By continually monitoring these indicators, we can early detect a change in the process of interest. The methodology of … statistical surveillance is used. Often, the conclusions about the process(es) of interest is improved if the surveillance is … based on several indicators. Here three systems for multivariate surveillance are compared. One system, called LRpar, is …

Multivariate surveillance is of interest in industrial production as it enables the monitoring of several components …. Recently there has been an increased interest also in other areas such as detection of bioterrorism, spatial surveillance and … have been proposed. Here a review of general approaches to multivariate surveillance is given with respect to how suggested …

On-line monitoring is needed to detect outbreaks of diseases like influenza. Surveillance is also needed for other … used to determine the sufficient statistic for surveillance. The derived maximum likelihood estimator of the outbreak … to the exponential family. The estimator was used in a generalized likelihood ratio surveillance method. The method was …