Judgment aggregation in argumentation
Opinion aggregation on social media uses various mechanisms, such as "Likes" or thumbs-up/-down, which handle a single item at a time. In many domains (e.g., political discussion or AI ethics), we need to consider a very large number of possibilities, or to take into account the relationships between different claims and how they rebut one another through complex webs of arguments and counter-arguments. We study methods for aggregating opinions about such complex domains, the quality of the outcomes of different opinion aggregations methods, and whether strategic agents can manipulate those outcomes.
Scientific writings
M. R. Frank, M. Cebrian, G. Pickard, I. Rahwan (2017). Validating Bayesian truth serum in large-scale online human experiments. PLOS ONE. 12(5): e0177385.
E. Awad, J.-F. Bonnefon, M. Caminada, T. Malone, I. Rahwan (2017). Experimental Assessment of Aggregation Principles in Argumentation-enabled Collective Intelligence. ACM Transactions on Internet Technology. 17:3.
[Paper] [arXiv preprint]E. Awad, M. Caminada, G. Pigozzi, M. Podlaszweski, I. Rahwan (2017). Pareto Optimality and Strategy Proofness in Group Argument Evaluation. Journal of Logic and Computation. (in press)
[Paper] [Free link to access article]E. Awad, R. Booth, F. Tohme, I. Rahwan (2017). Judgment Aggregation in Multi-Agent Argumentation. Journal of Logic and Computation. 27(1): 227-259.
R. Booth, E. Awad, and I. Rahwan (2014). Interval Methods for Judgment Aggregation in Argumentation. In: Proc. 14th Int. Conference on Principles of Knowledge Representation and Reasoning (KR), Vienna.
R. Booth, M. Caminada, M. Podlaszewski, and I. Rahwan (2012). Quantifying Disagreement in Argument-based Reasoning. In: Proc. 11th Int. Conference on Autonomous Agents and Multi-Agent Systems (AAMAS), Valencia, Spain.
I. Rahwan and K. Larson (2011). Logical Mechanism Design. The Knowledge Engineering Review. Volume 26, No 1, pages 61-69.
S. Pan, K. Larson and I. Rahwan (2010). Argumentation Mechanism Design for Preferred Semantics. In: Proceedings of the 3rd International Conference on Computational Models of Argument (COMMA), Italy, pages 403-414.
I. Rahwan and F. Tohmé (2010). Collective Argument Evaluation as Judgement Aggregation. In: Proceedings of the 9th International Joint Conference on Autonomous Agents and Multiagent Systems (AAMAS), Toronto, Canada.
I. Rahwan, K. Larson and F. Tohmé (2009). A Characterisation of Strategy-Proofness for Grounded Argumentation Semantics. In: Proceedings of the 21st International Joint Conference on Artificial Intelligence (IJCAI), Pasadena, California, USA.
I. Rahwan and K. Larson (2008). Pareto Optimality in Abstract Argumentation. In: Proceedings of 23rd Conference on Artificial Intelligence (AAAI). AAAI Press, California, USA, pages 150-155.
I. Rahwan and K. Larson (2008). Mechanism Design for Abstract Argumentation. In: Proceedings of 7th International Conference on Autonomous Agents and Multiagent Systems (AAMAS). Estoril, Portugal, pages 1031-1038.