Usually, whether to take vaccination or not is a voluntary decision, which is determined by many factors, from societal factors (such as religious belief and human rights) to individual preferences (including psychology and altruism). Facing the outbreaks of infectious diseases, different people often have different estimations on the risk of infectious diseases. So, some persons are willing to...

Due to limited buffers and highly unpredictable traffic loads, the design of effective buffer management policies that minimize cell loss is critical to ATM networks. We outline the important characteristics of optimal buffer control policies for a single node, and using a dynamic programming formulation for a simple two-node network, gain insights into the much harder general multi-node proble...

We present a viable geometric solution for the detection of dynamic effects in complex networks. Building on Forman’s discretization of the classical notion of Ricci curvature, we introduce a novel geometric method to characterize different types of real-world networks with an emphasis on peerto-peer networks. We study the classical Ricci-flow in a network-theoretic setting and introduce an ana...

We study maintenance of a complex dynamic system consisting of ageing and unobservable components under a predetermined threshold reliability level. Our aim is to construct an optimum replacement policy for the components of the system by minimizing total number of replacements or total replacement cost. We represent the problem with dynamic Bayesian networks (DBNs). We prove that under the exi...

We have been working with dynamic data from an oil production facility in the North sea, where unstable situations should be identified as soon as possible. Monitoring in such a complex domain is a challenging task. Not only is such a domain typically volatile and following non-linear dynamics, but sensor input to the monitoring system can also often be high dimensional, making it difficult to ...