This book constitutes the refereed proceedings of the 21st European Conference on Multi-Agent Systems, EUMAS 2024, which took place in Dublin, Ireland, on August 26, 2024.

The 24 full papers and 1 short paper included in this book were carefully reviewed and selected from 36 submissions.

.- Multi-Agent Based Simulation.

.- MAiS: Exploiting JADE as a Multi-Agent simulator of the Immune System.

.- Standardize data synchronization policies for distributed agent-based
simulations using proxies.

.- Data-Driven Agent-Based Modeling and Simulation of Price
Competition in the Danish Pharmaceutical Market.

.- Multi-Agent Learning.

.- Adversarial Search & Deep Learning for Strategic Settlement Placement
in the “Settlers of Catan”.

.- Quantifying Uncertainty in Complex Reinforcement Learning Scenarios.

.- Knowledge Representation, Reasoning and Planning.

.- A Logic of Actual Cause for Nondeterministic Domains.

.- Temporal Truth in the Limit: Yablo’s Paradox in LT Lf and over
Potentially Infinite Traces.

.- ATL for Dynamic Gaming Environments.

.- Responsibility in a Multi-Value Strategic Setting.

.- Parameter Synthesis for Families of Markov Chains with an Application
to Multi-Agent Systems Privacy.

.- Human-Agent Interaction.

.- Influence of Language Warmth on User Adoption of Agent
Recommendations for Multi-Arm Bandits.

.- Using Agent Interventions to Reduce User Procrastination Tendencies.

.- Coordination, Organisations, Institutions, Norms and
Ethics.

.- Search versus Search for Collapsing Electoral Control Types.

.- Exploiting Peer Trust and Semantic Similarities in the Assignment
Assessment Process.

.- A Study of the Dynamics of the Average in a Residual Gossip Protocol.

.- Rules2Lab: from Prolog Knowledge-Base, to Learning Agents, to Norm
Engineering.

.- Nudging Using Autonomous Agents: Risks and Ethical Considerations.

.- Virtue Ethics For Ethically Tunable Robotic Assistants.

.- Engineering Multi-Agent Systems.

.- Can Proof Assistants Verify Multi-Agent Systems?.

.- Cost-effective, MAS-based, refrigerated containers system at container
terminals.

.- Towards Agents’ Embodiment in Hypermedia Multi-Agent Systems

.- Putting Context into Hypermedia MAS.

.- Protocol Design Patterns for Statecharts-Based Open MAS Development

.- CommonHealth: multi-agent evaluation of blockchain-based
patient-centred health networks.

.-Do you want to play a game? Learning to play Tic-Tac-Toe in
Hypermedia Environments.