TitleExtending a Temporal Defeasible Argumentation Framework with Possibilistic Weights
Publication TypeConference Paper
Year of Publication2012
AuthorsGodo L, Marchioni E, Pardo P
EditorL. al. Fdel Cerro
Conference Name13th European Conference on Logics in Artificial Intelligence (JELIA 2012)
PublisherSpringer-Verlag Berlin Heidelberg
Conference LocationToulouse, France
Date Published26/09/2012
KeywordsArgumentation-based Logic Programming, Possibilistic Logic, Temporal Reasoning

Recently, a temporal extension of the argumentation defea- sible reasoning system DeLP has been proposed. This system, called t-DeLP, allows to reason defeasibly about changes and persistence over time but does not offer the possibility of ranking defeasible rules accord- ing to criteria of preference or certainty (in the sense of belief). In this contribution we extend t-DeLP by allowing to attach uncertainty weights to defeasible temporal rules and hence stratifying the set of defeasible rules in a program. Technically speaking, weights are modelled as neces- sity degrees within the frame of possibility theory, a qualitative model of uncertainty.