We develop query relaxation techniques for regular path queries and combine them with query approximation in order to support flexible querying of RDF data when the user lacks know...
A variety of modern technologies such as networks, Internet, and electronic services demand private and secure communications for a great number of everyday transactions. Security ...
We describe an approach to healthcare coordination using object life cycles (OLCs) [1]. By consulting the OLC of a given patient object instance, the legal methods to apply to tha...
Sistine Barretto, James R. Warren, Markus Stumptne...
In many distributed computing paradigms, especially sensor networks and ubiquitous computing but also grid computing and web services, programmers commonly tie their application to...
Jonathan J. Davies, Alastair R. Beresford, Alan My...
Abstract. We present a new access control mechanism for P2P networks with distributed enforcement, called P2P Access Control System (PACS). PACS enforces powerful access control mo...