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In this work, we propose Behavior-Guided Actor-Critic (BAC), an off-policy actor-critic deep RL algorithm. BAC mathematically formulates the behavior of the policy through autoencoders by providing an accurate estimation of how frequently…

Machine Learning · Computer Science 2021-04-12 Ammar Fayad , Majd Ibrahim

Reinforcement learning (RL) is currently used in various real-life applications. RL-based solutions have the potential to generically address problems, including the ones that are difficult to solve with heuristics and meta-heuristics and,…

Machine Learning · Computer Science 2022-11-24 Rafael F. Reale , Joberto S. B. Martins

Letting robots emulate human behavior has always posed a challenge, particularly in scenarios involving multiple robots. In this paper, we presented a framework aimed at achieving multi-agent reinforcement learning for robot control in…

Robotics · Computer Science 2023-05-25 Kangkang Duan , Christine Wun Ki Suen , Zhengbo Zou

Multi-agent reinforcement learning faces fundamental challenges that conventional approaches have failed to overcome: exponentially growing joint action spaces, non-stationary environments where simultaneous learning creates moving targets,…

Artificial Intelligence · Computer Science 2025-07-15 Hang Wang , Junshan Zhang

In this paper, we provide a general framework for studying multi-agent online learning problems in the presence of delays and asynchronicities. Specifically, we propose and analyze a class of adaptive dual averaging schemes in which agents…

Machine Learning · Computer Science 2022-04-19 Yu-Guan Hsieh , Franck Iutzeler , Jérôme Malick , Panayotis Mertikopoulos

Inferring a person's goal from their behavior is an important problem in applications of AI (e.g. automated assistants, recommender systems). The workhorse model for this task is the rational actor model - this amounts to assuming that…

Machine Learning · Computer Science 2019-03-15 Alexander Peysakhovich

Reinforcement learning demonstrated immense success in modelling complex physics-driven systems, providing end-to-end trainable solutions by interacting with a simulated or real environment, maximizing a scalar reward signal. In this work,…

Computational Physics · Physics 2025-01-10 Tobias Kortus , Ralf Keidel , Nicolas R. Gauger , Jan Kieseler

Ranking is a fundamental and widely studied problem in scenarios such as search, advertising, and recommendation. However, joint optimization for multi-scenario ranking, which aims to improve the overall performance of several ranking…

Artificial Intelligence · Computer Science 2018-09-18 Jun Feng , Heng Li , Minlie Huang , Shichen Liu , Wenwu Ou , Zhirong Wang , Xiaoyan Zhu

Reinforcement learning (RL) algorithms have been around for decades and employed to solve various sequential decision-making problems. These algorithms however have faced great challenges when dealing with high-dimensional environments. The…

Machine Learning · Computer Science 2020-04-01 Thanh Thi Nguyen , Ngoc Duy Nguyen , Saeid Nahavandi

We propose a fully distributed actor-critic algorithm approximated by deep neural networks, named \textit{Diff-DAC}, with application to single-task and to average multitask reinforcement learning (MRL). Each agent has access to data from…

Offline reinforcement learning (RL) is a promising approach for many control applications but faces challenges such as limited data coverage and value function overestimation. In this paper, we propose an implicit actor-critic (iAC)…

Machine Learning · Computer Science 2024-08-29 Vanshaj Khattar , Ming Jin

We design a simple reinforcement learning (RL) agent that implements an optimistic version of $Q$-learning and establish through regret analysis that this agent can operate with some level of competence in any environment. While we leverage…

Machine Learning · Computer Science 2021-07-13 Shi Dong , Benjamin Van Roy , Zhengyuan Zhou

Collective human knowledge has clearly benefited from the fact that innovations by individuals are taught to others through communication. Similar to human social groups, agents in distributed learning systems would likely benefit from…

Despite definite success in deep reinforcement learning problems, actor-critic algorithms are still confronted with sample inefficiency in complex environments, particularly in tasks where efficient exploration is a bottleneck. These…

Machine Learning · Computer Science 2021-02-09 Yannis Flet-Berliac , Johan Ferret , Olivier Pietquin , Philippe Preux , Matthieu Geist

The application of deep reinforcement learning in multi-agent systems introduces extra challenges. In a scenario with numerous agents, one of the most important concerns currently being addressed is how to develop sufficient collaboration…

Artificial Intelligence · Computer Science 2022-10-12 Bin Zhang , Yunpeng Bai , Zhiwei Xu , Dapeng Li , Guoliang Fan

In agent control issues, the idea of combining reinforcement learning and planning has attracted much attention. Two methods focus on micro and macro action respectively. Their advantages would show together if there is a good cooperation…

Artificial Intelligence · Computer Science 2020-03-20 Xuerun Chen

Deep reinforcement learning algorithms have recently been used to train multiple interacting agents in a centralised manner whilst keeping their execution decentralised. When the agents can only acquire partial observations and are faced…

Machine Learning · Computer Science 2020-01-27 Emanuele Pesce , Giovanni Montana

Autonomous driving faces challenges in navigating complex real-world traffic, requiring safe handling of both common and critical scenarios. Reinforcement learning (RL), a prominent method in end-to-end driving, enables agents to learn…

Robotics · Computer Science 2026-03-09 Ahmed Abouelazm , Johannes Ratz , Philip Schörner , J. Marius Zöllner

A major challenge for Multi-Agent Systems is enabling agents to adapt dynamically to diverse environments in which opponents and teammates may continually change. Agents trained using conventional methods tend to excel only within the…

Artificial Intelligence · Computer Science 2025-04-09 Qian Long , Ruoyan Li , Minglu Zhao , Tao Gao , Demetri Terzopoulos

The relationship between a reinforcement learning (RL) agent and an asynchronous environment is often ignored. Frequently used models of the interaction between an agent and its environment, such as Markov Decision Processes (MDP) or…

Artificial Intelligence · Computer Science 2018-06-29 Jaden B. Travnik , Kory W. Mathewson , Richard S. Sutton , Patrick M. Pilarski