Commonsense knowledge often omits the temporal incidence of facts, and even the ordering between occurrences is only available for some of their instances. Reasoning about the temp...
We establish the complexity of decision problems associated with the nonmonotonic modal logic S4. We prove that the problem of existence of an S4-expansion for a given set A of pr...
Autonomous agents working in multi-agent environments may need to cooperate in order to ful ll tasks. Given a set of agents and a set of tasks which they have to satisfy, we consi...
This paper deals with the problem of inference under uncertain information. This is a generalization of a paper of Cardona et al. (1991a) where rules were not allowed to contain n...
ract Interpretation of Logic Programs Maurice Bruynooghe and Gerda :Ianssens Department of Computer Science, Katholleke Universiteit Leuven Celestijnenlaan 200A, B-3001 Heverlee, B...