This paper describes a multi-national study evaluating the perceived usefulness and perceived ease of use of Ambient Intelligence (AmI) applications in office environments. In a fi...
We describe the Consistency Extractor System (ConsEx) that computes consistent answers to Datalog queries with negation posed to relational databases that may be inconsistent with...
We present a lightweight framework for processing uncertain emergent knowledge that comes from multiple resources with varying relevance. The framework is essentially RDF-compatibl...
—We propose an access control model that extends RBAC (Role-Based Access Control) to take time and location into account, and use term rewriting systems to specify access control...
Agents and services are two concepts that more and more are integrating and exploiting the advantages of each other. Agent-oriented methodologies effectively support the developme...