This paper proposes a coordination model, for both nd mobile agents, based on abstract structures called Communicators, entities which handle agent dialogue performed through ACL ...
Abstract. We propose a framework in which query sizes can be estimated from arbitrary statistical assertions on the data. In its most general form, a statistical assertion states t...
Abstract. In this paper, we present a logic R for rule bases by introducing a set of rule connectives. We define both the models and extensions of a rule base. The semantics of ex...
Abstract. Earlier we introduced Constraint Lambda Calculi which integrate constraint solving with functional programming for the simple case where the constraint solver produces no...
Abstract. We propose a descriptive high-level language XDTrans devoted to specify transformations over XML data. The language is based on unranked tree automata approach. In contra...