We describe a design for a collaborative Virtual Learning Environment (VLE) to support massively multi-user and multi-institutional learning communities. This architecture extends...
In recent years, a number of projects have turned to Wikipedia to establish large-scale taxonomies that describe orders of magnitude more entities than traditional manually built ...
An outstanding security problem in mobile agent systems is resource access control, or authorization in its broader sense. In this paper we present an authorization framework for m...
Abstract. This paper describes e cient protocols for multi-party computations that are information-theoretically secure against passive attacks. The results presented here apply to...
The relevance of distributed virtual environments (DVE) and interactive 3D worlds for entertaining and commercial purposes is steadily increasing. DVEs are typically implemented a...