This book constitutes the thoroughly reviewed post-proceeding of International Workshops on Coordination, Organization, Institutions and Norms in Agent Systems, COIN@AAMAS 2012, held in Valencia, Spain in June 2012. The 13 revised full papers presented together with 1 invited talk went through several rounds of reviewing and revision and were carefully selected for presentations. The papers are organized in topical sections on compliance and enforcement, norm emergence and social strategies, refinement, contextualisation and adaptation.

This book constitutes the refereed proceedings of the 12th International Workshop on Multi-Agent-Based Simulation, MABS 2011, held in Taipei, Taiwan, in May 2011. The 10 revised selected and extended papers presented were carefully reviewed and selected from 21 submissions. The topics covered are MABS in scientometrics; MABS in politics, transit and policy; pedestrian, crowds and large scale MABS; and MABS modeling.

This book constitutes the thoroughly refereed postproceedings of the 9th International Workshop on Multi-Agent-based Simulation, MABS 2008, held in Estoril, Portugal, in May 2008.

The 16 revised full papers presented have gone through two rounds of reviewing, selection, and improvement and were selected from 44 submissions; they present state-of-the-art research results in agent-based simulation and modeling. The papers are organized in topical sections on simulation of economic behaviour; modelling and simulation of social behaviou; applications; techniques, infrastructure and technologies as well as methods and methodologies.

In recent years, social and organizational aspects of agency have become - jor research topics in MAS. Current applications of MAS in Web services, grid computing and ubiquitous computing highlight the need for using these aspects in order to ensure social order within such environments. Openness, hete- geneity, and scalability of MAS, in turn, put new demands on traditional MAS interaction models and bring forward the need to investigate the environment wherein agents interact, more speci?cally to design di?erent ways of constra- ing or regulating agents' interactions. Consequently, the view of coordination and control has been expanding to entertain not only an agent-centric persp- tive but societal and organization-centric views as well. The overall problem of analyzing the social, legal, economic and technological dimensions of agent organizations and the co-evolution of agent interactions pose theoretically - manding and interdisciplinary research questions at di?erent levels of abstr- tion. The MAS research community has addressed these issues from di?erent perspectives that have gradually become more cohesive around the four c- cepts that give title to this workshop series: coordination, organization, ins- tutions and norms. The COIN@AAMAS 2007 and COIN@MALLOW 2007 events belong to a workshopseries that started in 2005, and since then has continued with two e- tions per year. The main goalof these workshopsis to bring together researchers from di?erent communities working in theoretical and/or practical aspects of coordination, organization, institutions and norms, and to to facilitate a more systematicdiscussionofthesethemesthathaveuntillatelybeenconsideredfrom di?erent perspectives.

This book constitutes the refereed proceedings of the 2nd International Joint Conference of the 10th Ibero-American Conference on Artificial Intelligence, IBERAMIA 2006, and the 18th Brazilian Artificial Intelligence Symposium, SBIA 2006. The book presents 62 revised full papers together with 4 invited lectures. Topical sections include AI in education and intelligent tutoring systems, autonomous agents and multiagent systems, computer vision and pattern recognition, evolutionary computation and artificial life, and more.

This book constitutes the thoroughly refereed post-conference proceedings of the 20th International Workshop on Multi-Agent-Based Simulation, MABS 2019, held in Montreal, QC, Canada, in May 2019 as part of the AAMAS 2019, the 18th International Conference on Autonomous Agents and Multiagent Systems. The 9 revised full papers included in this volume were carefully selected from 15 submissions. They focus on finding efficient solutions to model complex social systems in such areas as economics, management, and organisational and social sciences. In all these areas, agent theories, metaphors, models, analysis, experimental designs, empirical studies, and methodological principles, converge into simulation as a way of achieving explanations and predictions, exploration and testing of hypotheses, better designs and systems.

This book constitutes the thoroughly refereed post-conference proceedings of the 11th International Workshops on Coordination, Organizations, Institutions and Norms in Agent Systems, COIN 2015. The workshops were co-located with AAMAS 2015, held in Istanbul, Turkey, in May 2015, and with IJCAI 2015, held in Buenos Aires, Argentina, in July 2015. The 23 full papers were carefully reviewed and selected from 46 initial submissions for inclusion in this volume. The papers cover a wide range of topics from work on formal aspects of normative and team based systems, to software engineering with organizational concepts, to applications of COIN based systems, and to philosophical issues surrounding socio-technical systems. They highlight not only the richness of existing work in the field, but also point out the challenges and exciting research that remains to be done in the area.

This book constitutes the thoroughly refereed post-conference proceedings of the 16th International Workshop on Multi-Agent-Based Simulation, MABS 2015, held in Istanbul, Turkey, in May 2015. The workshop was held in conjunction with the 14th International Conference on Autonomous Agents and Multi-agent Systems, AAMAS 2015. The 12 revised full papers included in this volume ware carefully selected from 22 submissions. The papers focus on the influence of social sciences and multi-agent systems, with a strong application/empirical vein, and its emphasis is stressed on exploratory agent based simulation as a principled way of undertaking scientific research in the social sciences and using social theories as an inspiration to new frameworks and developments in multi-agent systems.