TítuloArgumented-based expansion operators in possibilistic defensible logic programming: characterization and logical properties
Publication TypeConference Paper
Year of Publication2005
AuthorsChesñevar C., Simari G., Godo L, Alsinet T
EditorGodo L
Conference NameLecture Notes in Artificial Intelligence
Volume3571
EditorialSpringer
Paginación353 - 365
Resumen

Possibilistic Defeasible Logic Programming (P-DeLP) is a logic programming language which combines features from argumentation theory and logic programming, incorporating as well the treatment of possibilistic uncertainty and fuzzy knowledge at object-language level. Defeasible argumentation in general and P-DeLP in particular provide a way of modelling non-monotonic inference. From a logical viewpoint, capturing defeasible inference relationships for modelling argument and warrant is particularly important, as well as the study of their logical properties. This paper analyzes two non-monotonic operators for P-DeLP which model the expansion of a given program program by adding new weighed facts associated with argument conclusions and warranted literals, resp. Different logical properties for the proposed expansion operators are studied and contrasted with a traditional SLD-based Horn logic. We will show that this analysis provides useful comparison criteria that can be extended and applied to other argumentation frameworks.