================================================ CALL FOR PARTICIPATION: DEON 2025, VIENNA ================================================ The 17th International Conference on Deontic Logic and Normative Systems (DEON 2025) will be held from July 1 - July 3, 2025 at TU Wien (Vienna, Austria). The conference will be preceded by a day of tutorials on June 30. *About the DEON conference series* The biennial International Conference on Deontic Logic and Normative Systems (DEON) conference series aims at bringing together researchers interested in the formal study of normative concepts,normative reasoning, and normative systems using methods from computer science, artificial intelligence, philosophy, linguistics, mathematics, and law. The series particularly aims at fostering interdisciplinary collaboration that combines methods from these various fields. Topics include but are not limited to the investigation of normative reasoning, concepts, and systems in relation to: agency and action, argumentation, defeasible reasoning, deontic modals, epistemic reasoning, explainability, knowledge representation, legal reasoning, multi-agent systems, natural language, norm change/revision, philosophy of reasons, policy preference reasoning, responsibility, social values, temporal reasoning and trustworthy systems. *Special focus* In addition to the general themes of the DEON conference series, the special theme of this year's edition is Normative AI. The central aim of Normative AI is to ensure that AI systems make morally, legally, and socially acceptable decisions. As AI becomes increasingly important to human society, it is crucial to ensure that these technologies have a positive and responsible impact. This highly interdisciplinary field involves the evaluation and development of theories, formal frameworks, and algorithms, integrating both symbolic and sub-symbolic AI methods. *Keynotes* Natasha Alechina (Utrecht University, The Netherlands) Henry Prakken (Utrecht University, The Netherlands) Christian Straßer (Ruhr University Bochum, Germany) *Tutorial day* In addition to the conference, DEON 2025 will be paired with full tutorial day hosting a variety of tutorials on DEON related topics by top researchers in their respective fields. The tutorial will be given by: - Pedro Cabalar (Corunna University, Spain) - Ilaria Canavotto (University of Maryland, US) - Elisa Freschi (University of Toronto) & Josephine Dik (TU Wien) - Matthias Scheutz (Tufts Institute for AI, US) *Registration* The early registration ends on Monday June 2nd (CEST) https://sites.google.com/view/deon-2025/registration *Program Chairs* Agata Ciabattoni, Vienna University of Technology (TU Wien) John Horty, University of Maryland, USA *Accepted Papers* Norm Avoidance and Reinforcement Learning: Definitions and Analysis Authors: Benoit Alcaraz, Emery Neufeld, Amro Najjar and Leon van der Torre Reasoning with and about normative conflicts Authors: Kees van Berkel and Christian Strasser Extending McNamara’s Recent Modifications of the DWE Framework Author: Paul McNamara Deolingo: extending Answer Set Programming with Deontic Reasoning Authors: Pedro Cabalar and Ovidio Manteiga Reasons and the Logic of Obligation Author: Stephan Krämer Trivalent Semantics for Conditional Obligations Authors: Paul Égré, Lorenzo Rossi and Jan Sprenger Deontic Argumentation Authors: Guido Governatori and Antonino Rotolo Quantified Deontic Stit Logic Authors: Edward Roussel and Stef Frijters A Truthmaker Semantics for Reason-Based Conditionals Authors: Alessandro Giordani and Vita Saitta Modal Logic for Agent-based Legal Classifications Authors: Daniil Khaitovich and Lorenz Hornung Input/Output Logic via Possible Worlds Authors: Brandon Hopkins Reasons against, balancing, and defeasible logic Authors: Aleks Knoks Connecting Free Choice Permission with Obligation and Prohibition by Not Doing It Authors: Zilu Wang and Yanjing Wang A Contrastive Semantics for Iffy Oughts Authors: Xuefeng Wen and Yanan Liu Navigating Permission and Exceptions: A First-Order Perspective Authors: Josephine Dik and Dominik Pichler Is moral particularism a problem for rule-based artificial normative systems? Author: Joris Graff Using Simple Deontic Constraints for Fast Norm-Conforming Reinforcement Learning Authors: Daniel Little and Matthias Scheutz Backward looking responsibility reconsidered. Authors: Jan Broersen Rational Monotony in Input Output Logic Authors: Xu Li, Leendert van der Torre and Liuwen Yu Deontically Constrained Policy Improvement in Reinforcement Learning Agents Authors: Alena Makarova and Houssam Abbas Deontic Explanations in Åqvist's systems Authors: Agata Ciabattoni, Blaž Istenič Urh and Xavier Parent