Abstract. Pruning operators, such as cut, are important to develop efficient logic programs as they allow programmers to reduce the search space and thus discard unnecessary compu...
We define logic programs with defaults and argumentation theories, a new framework that unifies most of the earlier proposals for defeasible reasoning in logic programming. We pres...
Hui Wan, Benjamin N. Grosof, Michael Kifer, Paul F...
We present typing rules for the Web query language Xcerpt. The rules provide a descriptive type system: the typing of a program is an ation of its semantics. The rules can also be ...
The purpose of this paper is to study the problem of complete type inferencing for polymorphic order-sorted logic programs. We show that previous approaches are incomplete even if...
Abstract. We give a simple term calculus for the multiplicative exponential fragment of Classical Linear Logic, by extending Barber and Plotkin's system for the intuitionistic...