Trust models in internet environments today are single-faceted. A single-faceted approach to modelling trust can suit some, or many, individuals but we believe that such a single-faceted approach cannot capture the wide and varied range of subjective views of trust found across a large and broad population. In response, we have designed, developed and evaluated a rich, semantic, human-centric model of trust that can handle the myriad of terms and intertwined meanings of trust. This multi-faceted model of trust can be Personalised on a per user basis and specialized on per domain basis. In this paper we briefly present an overview of this model and explain how it can be Personalised and specialized. However, the primary focus of this paper is on the experimental evaluation that has been carried out to evaluate the accuracy of recommendations based on this multi-faceted, Personalised model of trust for internet environments.

On-demand vehicle access is a method that can be used to reduce types of range anxiety problems related to planned travel for electric vehicle owners. Using ideas from elementary queueing theory, basic QoS metrics are defined to dimension a shared fleet to ensure high levels of vehicle access. Using mobility data from Ireland, it is argued that the potential cost of such a system is very low.

Abstract

It is possible to impose the will of the user or administrator through the specification of policies.

Abstract-When deploying collaborative applications such as Instant Messaging in ubiquitous computing environments significant enhancements can be afforded by offering additional context information, such as location information. However, such environments exert key challenges such as increased diversity of ownership and ad hoc, intermittent network connectivity that suits more decentralized computing architectures. This paper examines how a migration to a more decentralized collaborative architecture can be achieved together with a decentralization of the management of collaborative activities.