— According to the IETF definition, “presence conveys the ability and willingness of a user to communicate across a set of devices”. In this paper we use semantic techniques ...
Semantic Web policies are general statements defining the behavior of a system that acts on behalf of real users. These policies have various applications ranging from dynamic age...
In this paper, we propose a domain-specific aspect language to prevent the denials of service caused by resource management. Our aspects specify availability policies by enforcin...
Defeasible reasoning is a rule-based approach for efficient reasoning with incomplete and inconsistent information. Such reasoning is useful for many applications in the Semantic W...
Nick Bassiliades, Efstratios Kontopoulos, Grigoris...
The growing diffusion of portable devices enables users to benefit from anytime and anywhere impromptu collaboration. Appropriate policy models that take into account the dynamici...