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Expected Scalarised Returns Dominance: A New Solution Concept for Multi-Objective Decision Making


Jun 02, 2021
Conor F. Hayes, Timothy Verstraeten, Diederik M. Roijers, Enda Howley, Patrick Mannion


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A Practical Guide to Multi-Objective Reinforcement Learning and Planning


Mar 17, 2021
Conor F. Hayes, Roxana Rădulescu, Eugenio Bargiacchi, Johan Källström, Matthew Macfarlane, Mathieu Reymond, Timothy Verstraeten, Luisa M. Zintgraf, Richard Dazeley, Fredrik Heintz, Enda Howley, Athirai A. Irissappane, Patrick Mannion, Ann Nowé, Gabriel Ramos, Marcello Restelli, Peter Vamplew, Diederik M. Roijers


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Risk Aware and Multi-Objective Decision Making with Distributional Monte Carlo Tree Search


Feb 02, 2021
Conor F. Hayes, Mathieu Reymond, Diederik M. Roijers, Enda Howley, Patrick Mannion

* 8 pages, 4 figures 

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Scalable Optimization for Wind Farm Control using Coordination Graphs


Jan 19, 2021
Timothy Verstraeten, Pieter-Jan Daems, Eugenio Bargiacchi, Diederik M. Roijers, Pieter J. K. Libin, Jan Helsen


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Opponent Learning Awareness and Modelling in Multi-Objective Normal Form Games


Nov 14, 2020
Roxana Rădulescu, Timothy Verstraeten, Yijie Zhang, Patrick Mannion, Diederik M. Roijers, Ann Nowé

* Under review since 14 November 2020 

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Time Efficiency in Optimization with a Bayesian-Evolutionary Algorithm


May 04, 2020
Gongjin Lan, Jakub M. Tomczak, Diederik M. Roijers, A. E. Eiben

* 13 pages, 10 Figures 

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Learning Directed Locomotion in Modular Robots with Evolvable Morphologies


Jan 21, 2020
Gongjin Lan, Matteo De Carlo, Fuda van Diggelen, Jakub M. Tomczak, Diederik M. Roijers, A. E. Eiben

* 30 pages, 14 figures 

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A utility-based analysis of equilibria in multi-objective normal form games


Jan 17, 2020
Roxana Rădulescu, Patrick Mannion, Yijie Zhang, Diederik M. Roijers, Ann Nowé

* Under review since 16 January 2020 

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Model-based Multi-Agent Reinforcement Learning with Cooperative Prioritized Sweeping


Jan 15, 2020
Eugenio Bargiacchi, Timothy Verstraeten, Diederik M. Roijers, Ann Nowé


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Multi-Objective Multi-Agent Decision Making: A Utility-based Analysis and Survey


Sep 06, 2019
Roxana Rădulescu, Patrick Mannion, Diederik M. Roijers, Ann Nowé

* Under review since 15 May 2019 

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Sample-Efficient Model-Free Reinforcement Learning with Off-Policy Critics


Mar 11, 2019
Denis Steckelmacher, Hélène Plisnier, Diederik M. Roijers, Ann Nowé


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The Actor-Advisor: Policy Gradient With Off-Policy Advice


Feb 07, 2019
Hélène Plisnier, Denis Steckelmacher, Diederik M. Roijers, Ann Nowé


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Dynamic Weights in Multi-Objective Deep Reinforcement Learning


Sep 20, 2018
Axel Abels, Diederik M. Roijers, Tom Lenaerts, Ann Nowé, Denis Steckelmacher


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Directed Policy Gradient for Safe Reinforcement Learning with Human Advice


Aug 13, 2018
Hélène Plisnier, Denis Steckelmacher, Tim Brys, Diederik M. Roijers, Ann Nowé

* Accepted at the European Workshop on Reinforcement Learning 2018 (EWRL14) 

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Bayesian Best-Arm Identification for Selecting Influenza Mitigation Strategies


Jun 15, 2018
Pieter Libin, Timothy Verstraeten, Diederik M. Roijers, Jelena Grujic, Kristof Theys, Philippe Lemey, Ann Nowé


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Reinforcement Learning in POMDPs with Memoryless Options and Option-Observation Initiation Sets


Sep 12, 2017
Denis Steckelmacher, Diederik M. Roijers, Anna Harutyunyan, Peter Vrancx, Hélène Plisnier, Ann Nowé


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Multi-Objective Deep Reinforcement Learning


Oct 09, 2016
Hossam Mossalam, Yannis M. Assael, Diederik M. Roijers, Shimon Whiteson


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Structure in the Value Function of Two-Player Zero-Sum Games of Incomplete Information


Jun 22, 2016
Auke J. Wiggers, Frans A. Oliehoek, Diederik M. Roijers


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Solving Transition-Independent Multi-agent MDPs with Sparse Interactions (Extended version)


Feb 11, 2016
Joris Scharpff, Diederik M. Roijers, Frans A. Oliehoek, Matthijs T. J. Spaan, Mathijs M. de Weerdt

* This article is an extended version of the paper that was published under the same title in the Proceedings of the Thirtieth AAAI Conference on Artificial Intelligence (AAAI16), held in Phoenix, Arizona USA on February 12-17, 2016 

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