English

Know your exceptions: Towards an Ontology of Exceptions in Knowledge Representation

Artificial Intelligence 2024-03-06 v2

Abstract

Defeasible reasoning is a kind of reasoning where some generalisations may not be valid in all circumstances, that is general conclusions may fail in some cases. Various formalisms have been developed to model this kind of reasoning, which is characteristic of common-sense contexts. However, it is not easy for a modeller to choose among these systems the one that better fits its domain from an ontological point of view. In this paper we first propose a framework based on the notions of exceptionality and defeasibility in order to be able to compare formalisms and reveal their ontological commitments. Then, we apply this framework to compare four systems, showing the differences that may occur from an ontological perspective.

Keywords

Cite

@article{arxiv.2403.00685,
  title  = {Know your exceptions: Towards an Ontology of Exceptions in Knowledge Representation},
  author = {Gabriele Sacco and Loris Bozzato and Oliver Kutz},
  journal= {arXiv preprint arXiv:2403.00685},
  year   = {2024}
}

Comments

18 pages, 4 pages are appendix. (v2 updates: minor revisions on discussions, terminology and text editing)

R2 v1 2026-06-28T15:06:10.921Z