Argument Theory Change Through Defeater Activation

MARTIN O. MOGUILLANSKY; NICOLÁS D. ROTSTEIN; ALEJANDRO J. GARCÍA; MARCELO A. FALAPPA; GUILLERMO R. SIMARI

Pasadena, USA

Workshop; IJCAI-09 workshop on Computational Models of Natural Argument (CMNA IX).; 2009

Argument Theory Change applies classic belief change concepts to the area of argumentation. This intersection of fields takes advantage of the definition of a Dynamic Abstract Argumentation Framework, in which an argument is either active or inactive, and only in the former case it is taken into consideration in the reasoning process. An approach for an argument revision operator defined through deactivation of arguments can be found in the literature. The present article gets the inspiration from that approach, extending it to consider activation of arguments to achieve the same objective: the definition of a revision operator.