Schedule

For Presenters (underlined in the schedule): Talks are structured into 4 sessions. At the latest, 10 minutes before the session in which your talk is scheduled, please make sure to introduce yourself to the session chair and upload your slides to the Dropbox folder (details have been shared via email). Alternatively, you can upload your slides to the laptop in the room (please bring a USB stick for that).

Paper talks consist of a 15-minute presentation and a 5-minute Q&A session. We have included some buffer/transition time between talks, especially for hybrid-mode talks.

The non-archival proceedings of the Fourth International Workshop on Citizen-Centric Multiagent Systems (C-MAS 2026) are available at the following address: [PDF].

Note: All times in the schedule are in Paphos time.

08:45 - Welcome

Session 1 - Citizen Values, Fairness, and Collective Behaviour (Chair: Mayesha Tasnim)

09:00 - Biased social norms of cooperation in large language models,  Alexandre S. Pires and Fernando P. Santos [PDF]

09:25 - Resolving Complex Social Dilemmas by Aligning Preferences with Counterfactual Regret,  Shuqing Shi, Yudi Zhang, Joel Z Leibo and Yali Du [PDF]

09:50 - Long-term Effects of Fairness Metrics on Population Dynamics, Mirthe Dankloff, Yining Yuan, Nirav Ajmeri and Vahid Yazdanpanah [PDF]

10:15–11:00 - Coffee break

Session 2 - Keynote and Citizen Information Ecosystems (Chair: Sebastian Stein)

11:00 - Keynote by Roxana Rădulescu (Utrecht University), From Friction to Synergy: Building Human-Aligned Agents with Multi-Objective Reinforcement Learning

12:00 - Algorithmic Recommendations Alter the Spread of Competing Information,  João N.B. Fonseca, Giuseppe M. Ferro and Fernando P. Santos [PDF]

12:30–14:00 - Lunch break

Session 3 - Citizen-Centric Services, Mobility, and Human-AI Interaction (Chair: Dimitris Michailidis)

14:00 - A Citizen-Centric Multi-Agent Framework for Emotionally Intelligent Human–AI Interaction,  Sam Nallaperuma-Herzberg, Rishabh Balse, Sonia Koszut, Lilith Stenhouse, Anna Bevan, Tristan Bekinschtein and Pietro Lio (online presentation) [PDF]

14:25 - Tripartite Tender Game Framework for MARL in Crowdsource First-Last Mile Logistics,  Aleksandra Vatian, Ivan Tomilov, Natalia Gusarova, Igor Kondrashov, Ekaterina Batsanova and Aleksandr Chernyavskii (online presentation) [PDF]

14:50 - Human-Centric AI Modeling for Fair and Cooperative Microtransit Ride Prioritization,  Divya Sundaresan, Danushka Edirimanna, Liwen Du, Eleni Bardaka, Samitha Samaranayake and Munindar Singh [PDF]

15:10 - Strategic Exploitation of Placement Guarantees in Random Serial Dictatorship: Modeling the Amsterdam School Choice System,  Mayesha Tasnim, Joseph Trevorrow and Nirav Ajmeri [PDF]

15:30–16:15 - Coffee break

Session 4 - Accountability, Institutions, and Citizen Behaviour (Chair: Sebastian Stein)

16:15 - The Challenge of Realistic Personas in Generative Agent-Based Modeling,  Dimitris Michailidis and Fernando P. Santos [PDF]

16:40 - Explainability through Accountability in Citizen-Centric Multiagent Systems,  Matteo Baldoni, Cristina Baroglio, Elisa Marengo, Roberto Micalizio and Stefano Tedeschi [PDF]

17:10 - The Role of Regulatory Institutions in Strategic Lending,  Mayesha Tasnim, Marta C. Couto and Giovanni Sileno [PDF]