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IJCAI
2003
15 years 7 months ago
Terminological Cycles in a Description Logic with Existential Restrictions
Cyclic definitions in description logics have until now been investigated only for description logics allowing for value restrictions. Even for the most basic language which allow...
Franz Baader
ICFP
2002
ACM
16 years 6 months ago
Type classes with more higher-order polymorphism
We propose an extension of Haskell's type class system with bstractions in the type language. Type inference for our extension relies on a novel constrained unification proce...
Matthias Neubauer, Peter Thiemann
ASP
2003
Springer
15 years 11 months ago
What's in a model? Epistemological analysis of Logic Programming
It is commonly believed that the meaning of a formal declarative knowledge representation language is determined by its formal semantics. This is not quite so. This paper shows an...
Marc Denecker
ICLP
2003
Springer
15 years 11 months ago
Order and Negation as Failure
We equip ordered logic programs with negation as failure, using a simple generalization of the preferred answer set semantics for ordered programs. This extension supports a conven...
Davy Van Nieuwenborgh, Dirk Vermeir
AGP
1997
IEEE
15 years 10 months ago
Safe Folding/Unfolding with Conditional Narrowing
Abstract. Functional logic languages with a complete operational semantics are based on narrowing, a generalization of term rewriting where unification replaces matching. In this ...
María Alpuente, Moreno Falaschi, Giné...