Virtually all major cities around the world face severe parking problems in their centers. While existing models of parking search and choice behavior do provide insight into the basic dynamics of parking in cities, as well as into the phenomenon of drivers cruising for on-street parking, virtually all models discussed in the literature ignore a number of key factors that influence parking beha...

It has been under debates whether school closure is effective in mitigating the outbreak of influenza. To better address the problem, we develop an individual-based simulation model based on the real-life contact data in Singapore. By conducting extensive simulations on the model, we evaluate the impacts of temporal factors, namely the trigger threshold and duration, on the effectiveness of sch...

INTRODUCTION Making change towards child and family-based and coordinated services is critical to improve quality, outcomes and value. The Let's Talk about Children (LTC) approach, which consists of brief psychoeducational discussions with parents of kindergarten-aged and school-aged children, has been launched as a municipality-specific programme in the Council of Oulu Region. The aim of this ...

Preserving privacy of users in online social networks is important. Usually, users specify their privacy constraints and the online social network is expected to enforce them. However, many times a piece of content is related to a number of users, whose privacy constraints might be incompatible. For example, when a user shares a party photo, her privacy constraints are enforced on the picture b...

It is often assumed that agents in multiagent systems with state uncertainty have full knowledge of the model of dynamics and sensors, but in many cases this is not feasible. A more realistic assumption is that agents must learn about the environment and other agents while acting. Bayesian methods for reinforcement learning are promising for this type of learning because they allow model uncert...

This paper explores the current state and interfaces of two broad policy discourses, i.e. that of policies for knowledge-based economies (KBEs) and policy implications of happiness research, which so far have exhibited little explicit cross-referencing. I first review the state of ‘mainstream’ knowledge policy associated with the OECD, the related but somewhat separate literature on information...

Role based access control (RBAC) is attracting increasing attention as a security mechanism for both commercial and many military systems. Much of RBAC is fundamentally diierent from multi-level security (MLS) systems, and the properties of RBAC systems have not been explored formally to the extent that MLS system properties have. This paper explores some aspects of mutual exclusion of roles as...

B2B applications require coordination of distributed services according to specific workflow policies. A major challenge with B2B applications is implementing a dynamic change to an active workflow policy. When dynamically changing a policy, active workflow instances that are in progress must be transitioned to the new policy in a dependable manner. To avoid undesirable side effects of the chan...

This paper describes an implementation of the class based queueing (CBQ) mechanisms proposed by Sally Floyd and Van Jacobson 1] 2] to provide real time policies for packet forwarding. CBQ allows the traac ows sharing a data link to be guaranteed a share of the bandwidth when the link is congested, yet allows exible sharing of the unused bandwidth when the link is unloaded. In addition, CBQ prov...

In all user-centred agent-based applications, for instance in the context of ambient computing, the user agent is often faced to a difficult trade-off between the protection of its own privacy, and the fluidity offered by the services. In existing applications, the choice is almost never on the user’s side, even though the law grants him a number of rights in order to guarantee his privacy. We ...