Reference : Taking Defeasible Entailment beyond Rational Closure
Scientific congresses, symposiums and conference proceedings : Paper published in a book
Engineering, computing & technology : Computer science
Computational Sciences
Taking Defeasible Entailment beyond Rational Closure
Casini, Giovanni mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Computer Science and Communications Research Unit (CSC) >]
Meyer, Thomas mailto [University of Cape Town > Computer Science]
Varzinczak, Ivan mailto [Université d'Artois > Computer Science]
Proceedings of the 16th European Conference on Logics in Artificial Intelligence (JELIA-19)
LNCS 11468
16th European Conference on Logics in Artificial Intelligence (JELIA-19)
7-11 May 2019
[en] artificial intelligence ; knowledge representation ; nonmonotonic logics
[en] We present a systematic approach for extending the KLM framework
for defeasible entailment. We first present a class of basic defeasible entailment
relations, characterise it in three distinct ways and provide a high-level algorithm
for computing it. This framework is then refined, with the refined version being
characterised in a similar manner. We show that the two well-known forms of
defeasible entailment, rational closure and lexicographic closure, fall within our
refined framework, that rational closure is the most conservative of the defeasible
entailment relations within the framework (with respect to subset inclusion), but
that there are forms of defeasible entailment within our framework that are more
“adventurous” than lexicographic closure.
H2020 ; 690974 - MIREL - MIREL - MIning and REasoning with Legal texts

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