---
title: "Manipulation in Group Argument Evaluation"
authors:
  - "Martin Caminada"
  - "Gabriella Pigozzi"
  - "Mikolaj Podlaszewski"
doi: "10.5591/978-1-57735-516-8/IJCAI11-032"
url: "https://ijcai.org/proceedings/2011/32"
pdf: "https://ijcai.org/proceedings/2011/0032.pdf"
venue: "Proceedings of the Twenty-Second International Joint Conference on Artificial Intelligence"
year: 2011
pages: "121-125"
track: ""
keywords:
---

# Manipulation in Group Argument Evaluation

Martin Caminada, Gabriella Pigozzi, Mikolaj Podlaszewski

*Proceedings of the Twenty-Second International Joint Conference on Artificial Intelligence*, pages 121-125. DOI: [10.5591/978-1-57735-516-8/IJCAI11-032](https://doi.org/10.5591/978-1-57735-516-8/IJCAI11-032)

## 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 needsto reach a common position on the argumentation framework, the question is how the individual evaluations can be mapped into a collective one. Thisproblem has been recently investigated by Caminada and Pigozzi. In this paper, we investigate the behaviour of two of such operators from a socialchoice-theoretic point of view. In particular, we study under which conditions these operators are Pareto optimal and whether they are manipulable.