The event calculus is a logic programming formalism for representing events and their effects especially in database applications. This paper presents the use of the event calculus...
Abstract. Description logics are powerful knowledge representation systems providing well-founded and computationally tractable classification reasoning. However recognition of in...
Abstract. A formal and effective approach to the extension of the computational behaviour of logic programs is presented. The approach builds upon the following concepts. The exte...
Abstract. We present a model for complex documents possibly consisting of a hierarchically structured set of images or texts. Documents are represented both at the form level (as s...
Carlo Meghini, Fabrizio Sebastiani, Umberto Stracc...
Abstract. We have designed a programming logic based on an integration of functional programming languages with classical set theory. The logic merges a classical view of equality ...