Querying non-conventional data is recognized as a major issue in new environments and applications such as those occurring in pervasive computing. A key issue is the ability to qu...
Active networks allow their users to inject customized programs into the nodes of the network. An extreme case, in which we are most interested, replaces packets with “capsulesâ...
Social networks and collaborative tagging systems are rapidly gaining popularity as primary means for sorting and sharing data: users tag their bookmarks in order to simplify infor...
The ubiquitous proliferation of mobile devices has given rise to novel user-centric application and services. In current mobile systems, users gain access to remote service provide...