Despite important advances in Grid computing, scalability and interoperability issues obstruct the integration of the existing isolated grids into the Grid. We propose a worldwide ...
The Semantic Grid aims at enhancing Grid architectures by knowledge engineering techniques. The service notion is central in this approach. Service-level agreements, called contrac...
A type system is presented that combines a weak form of information flow control, termed distributed access control in the paper, with typed cryptographic operations. The motivat...
We present a system for collaborative conceptual design that allows users potentially located in geographically distant areas to cooperate by sketching, exploring and modifying the...
We study a notion of variation for real valued two variable functions called the path variation and we discuss its application as a low-level image segmentation method. For this pu...