This book constitutes the refereed proceedings of the 4th International Conference on Pervasive Computing, PERVASIVE 2006, held in Dublin, Ireland, in May 2006. The 24 revised full papers presented here are organized in topical sections on activity recognition, location, sensors, sensor processing and platforms, toolkits and gaming, security, pointing, interaction and displays, and smart homes, and beyond.

This book constitutes the refereed proceedings of the First International Conference on Trust Management, iTrust 2003, held in Heraklion, Crete, Greece in May 2003. The 24 revised full papers presented were carefully reviewed and selected from 58 submissions. This first book devoted to the emerging interdisciplinary field of trust management spans the whole range of relevant topics, from technical issues in distributed and open systems to legal, social, and philosophical aspects.

Research into Smart Buildings and Spaces has increased rapidly over the last few years. This volume aims to address the convergence of research in Distributed Systems, Robotics and Human Centred computing within the domain of smart buildings and present a unique opportunity to investigate work that crosses the boundaries of these disciplines. It provides an overview of progress in a fast-moving area, by bringing together researchers, implementors and practitioners and the papers draw together the developments and concerns of those working on the different aspects of smart environments, as well as providing views on the future prospects for work in this area.