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

Multivariate surveillance is of interest in industrial production as it enables the monitoring of several components … have been proposed. Here a review of general approaches to multivariate surveillance is given with respect to how suggested … multivariate sur-veillance methods. …

optimal surveillance method for each specific application and provides some directions for improving earlier suggested methods. …The aim of sequential surveillance is on-line detection of an important change in an underlying process as soon as … possible after the change has occurred. Statistical methods suitable for surveillance differ from hypothesis testing methods …

An overview on surveillance in different areas is given. Even though methods have been developed under different … can be used also in other areas. The aim of surveillance is to detect an important change in an underlying process as soon … as possible after the change has occurred. In practice, we have complexities such as gradual changes and multivariate …

challenges of evaluating multivariate surveillance methods. …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 …

On-line monitoring is needed to detect outbreaks of diseases like influenza. Surveillance is also needed for other … other variables might be available and may be utilized. We adapted a robust method for outbreak detection to a multivariate … used to determine the sufficient statistic for surveillance. The derived maximum likelihood estimator of the outbreak …

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 …