Argument Theory Change Through Defeater Activation.

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

Conferencia; Computational Models of Arguments; 2010

Argument Theory Change (ATC) applies classic belief change conceptsto the area of argumentation. This intersection of fields takes advantage of the def-inition of a Dynamic Abstract Argumentation Framework, in which an argumentis either active or inactive, and only in the former case it is taken into considera-tion in the reasoning process. ATC identifies how the framework has to be modi-fied in order to achieve warrant for a certain argument. The present article copeswith this matter by defining a revision operator based on activation of arguments,i.e., recognizing the knowledge that is missing.