• 11:00 : Welcome Talk
  • 11:15 : Conflicts Resolution with the SoDA Methodology​. Nikolaos I. Spanoudakis, Antonis Kakas and Pavlos Moraitis​
  • 11:40 : Human-Computer Agent Negotiation using Cross Culture Reliability Models. Galit Haim, Dor Nisim and Marian Tsatkin
  • 12:15 : Lunch
  • 13:15 : A Multi-Agent System for Group Decision Support based on Conflict Resolution Styles. Silvia Rossi, Claudia Di Napoli, Francesco Barile and Luca Liguori​
  • 13:40 : Incremental Computation of Deterministic Extensions for Dynamic Abstract Argumentation Frameworks. Sergio Greco and Francesco Parisi
  • 14:05 : Boolean Negotiation Games​. Nils Bulling and Koen Hindriks
  • 14:30 : Nonlinear negotiation approaches for complex-network optimization: a study inspired by Wi-Fi channel assignment​. Iván Marsa Maestre, Enrique De La Hoz, Jose Manuel Gimenez-Guzman, David Orden and Mark Klein. ​
  • 15:00 : Coffee break
  • 15:30 : Invited Talk (Prof. Dr. PInar Yolum, "Resolving Privacy Disputes Collaboratively in Online Social Networks")
  • 16:15 : Can we reach Pareto optimal outcomes using bottom-up approaches?​ Victor Sanchez-Anguix, Reyhan Aydogan, Tim Baarslag and Catholijn Jonker
  • 16:40 : A multi-agent argumentation framework to support collective reasoning. Jordi Ganzer-Ripoll, Maite López-Sánchez and Juan Antonio Rodríguez-Aguilar​
  • 17:05: The Role of Execution Errors in Populations of Ultimatum Bargaining Agents. Fernando P. Santos, Francisco C. Santos, Ana Paiva and Jorge Pacheco​


About Invited Speaker: 

             PInar Yolum is a professor of computer engineering in Bogazici University, Istanbul, where she leads a research group in multiagent systems. She has (co-)authored more that 80 papers in selected journals and conferences. She serves on the Editorial Board of Journal of Autonomous Agents and Multiagent Systems and Journal of AI Research. She served as a board member of International Foundation for Autonomous Agents and Multiagent Systems (IFAAMAS). She served as the Program Co-Chair of International Conference on Autonomous Agents and Multiagent Systems (AAMAS) in 2011 and as general co-chair in 2015.  She regularly writes for, a Turkish Website dedicated to sharing experiences about academic life in Turkey.

About Her Talk: Resolving Privacy Disputes Collaboratively in Online Social Networks

              Privacy is a major concern of Web systems.  Traditional Web systems employ static privacy agreements to notify its users of how their information will be used.  Recent online social networks allow users to specify some privacy concerns, thus providing a partially personalized privacy setting.  However, still privacy violations are taking place.  One reason for this is that the users are allowed to create and share content about themselves as well as about others. When multiple entities start distributing content without a control, information can reach unintended individuals.  Since privacy constraints of these users may be different from each other, privacy disputes can occur.  Ideally, all relevant users of a content must be able to engage in a discussion of their privacy constraints so that they can agree on whether to share the content and if so with whom.

              This talk will discuss our recent work on using argumentation to resolve disputes among users in online social networks.  Our work is based on representing each user in an OSN with an agent that is responsible for managing and enforcing its user's privacy constraints. When an agent wants to share a post, an argumentation session starts between the agent and other relevant agents. The agents provide each other arguments to express their privacy stance and try to convince each other that their claim is true. At the end of the argumentation, the system decides whether sharing the post is justified according to the provided arguments of the agents.  We show how this approach disables privacy violations using  real-life privacy scenarios.