The offering of anonymity in relational databases has attracted a great deal of attention in the database community during the last decade [4]. Among the different solution appr...
We describe a type system for the Xd calculus of Gardner and Maffeis. An Xd-network is a network of locations, where each location consists of both a data tree (which contains scr...
Abstract-- Mobile location estimation is becoming an important value-added service for a mobile phone operator. It is well-known that GPS can provide an accurate location estimatio...
Location services are essential to many applications running on a hybrid of wirelessly-networked mobile actors and static sensors, such as surveillance systems and the Pursuer and...
Abstract - The rapid advances of wireless and web technologies enable the mobile users to request various kinds of services via mobile devices at anytime and anywhere. To provide t...