Presence-sharing is an emerging platform for mobile applications, but presence-privacy remains a challenge. Privacy controls must be flexible enough to allow sharing between both ...
Access. permissions in a data warehouse are currently managed in a separate world from the sources' policies. The consequences are inconsistencies, slow response to change, a...
It is challenging to process transactions in a timely fashion using fresh data, e.g., current stock prices, since database workloads may considerably vary due to dynamic data/reso...
Peer-to-Peer (P2P) applications and services are very common in today’s computing. The popularity of the P2P paradigm prompts the need for specialized security services which ma...
A typical storage hierarchy comprises of components with varying performance and cost characteristics, providing multiple options for data placement. We propose and evaluate a hie...