We present an extension of the πI-calculus with formal sums of terms. The study of the properties of this sum reveals that its neutral element can be used to make assumptions abo...
We present a process algebra suitable to the modelling of timed concurrent systems and to their efficient verification through model checking. The algebra is provided with two con...
The ability to reason about action and change has long been considered a necessary component for any intelligent system. Many proposals have been offered in the past to deal with ...
Steven Shapiro, Maurice Pagnucco, Yves Lespé...
Eliciting requirements for a proposed system inevitably involves the problem of handling undesirable information about customer’s needs, including inconsistency, vagueness, redun...
The Region-Connection Calculus (RCC) is a well established formal system for qualitative spatial reasoning. It provides an axiomatization of space which takes regions as primitive...