We use the term “Grid” to refer to a software system that provides uniform and location independent access to geographically and organizationally dispersed, heterogeneous reso...
William E. Johnston, Dennis Gannon, Bill Nitzberg,...
We describe an approach to building security services for context-aware environments. Specifically, we focus on the design of security services that incorporate the use of securi...
Michael J. Covington, Prahlad Fogla, Zhiyuan Zhan,...
As more and more tools are developed for meeting support tasks, properly using these tools to get expected results becomes too complicated for many meeting participants. To addres...
A model of resource access control is presented in which the access control to resources can employ user interaction to obtain the necessary permissions. This model is inspired by...
An important problem for many location-based applications is the continuous evaluation of proximity relations among moving objects. These relations express whether a given set of ...