Manipulation in Group Argument Evaluation

Martin Caminada, Gabriella Pigozzi, Mikolaj Podlaszewski

Abstract: Given an argumentation framework and a group of agents, the individuals may have divergent opinions on the status of the arguments. If the group needs to reach a common position on the argumentation framework, the question is how the individual evaluations can be mapped into a collective one. This problem has been recently investigated in 1]. In this paper, we study under which conditions these operators are Pareto optimal and whether they are manipulable.