We address the problem of answering conjunctive queries over knowledge bases, specified by sets of first-order sentences called tuple-generating dependencies (TGDs). This problem i...
Abstract. We present and discuss a formal, high-level approach to the specification and composition of interaction protocols for service-oriented systems. This work is being develo...
In this paper we propose a formal specification of a persuasion protocol between autonomous agents using an approach based on social commitments and arguments. In order to be flexi...
Jamal Bentahar, Bernard Moulin, John-Jules Ch. Mey...
We present a procedure for computing the sceptical "ideal semantics" for argumentation in assumption-based frameworks. This semantics was first proposed for logic program...
The PolicyUpdater1 system is a generic access control system that provides policy evaluations and dynamic policy updates. These functions are achieved by the use of a logic-based ...