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In complex tasks, such as those with large combinatorial action spaces, random exploration may be too inefficient to achieve meaningful learning progress. In this work, we use a curriculum of progressively growing action spaces to…

Machine Learning · Computer Science 2019-07-01 Gregory Farquhar , Laura Gustafson , Zeming Lin , Shimon Whiteson , Nicolas Usunier , Gabriel Synnaeve

Reinforcement Learning (RL) is a rapidly growing area of machine learning that finds its application in a broad range of domains, from finance and healthcare to robotics and gaming. Compared to other machine learning techniques, RL agents…

Artificial Intelligence · Computer Science 2024-11-14 Geetansh Kalra , Divye Singh , Justin Jose

Reinforcement learning (RL) is a flexible and efficient method for programming micro-robots in complex environments. Here we investigate whether reinforcement learning can provide insights into biological systems when trained to perform…

Biological Physics · Physics 2024-04-03 Samuel Tovey , Christoph Lohrmann , Christian Holm

Capturing and simulating intelligent adaptive behaviours within spatially explicit individual-based models remains an ongoing challenge for researchers. While an ever-increasing abundance of real-world behavioural data are collected, few…

Multiagent Systems · Computer Science 2022-01-05 Sedar Olmez , Dan Birks , Alison Heppenstall

Deep Reinforcement Learning (DRL) and Deep Multi-agent Reinforcement Learning (MARL) have achieved significant successes across a wide range of domains, including game AI, autonomous vehicles, robotics, and so on. However, DRL and deep MARL…

Artificial Intelligence · Computer Science 2023-02-03 Jianye Hao , Tianpei Yang , Hongyao Tang , Chenjia Bai , Jinyi Liu , Zhaopeng Meng , Peng Liu , Zhen Wang

Real-world sequential decision-making often involves parameterized action spaces that require both, decisions regarding discrete actions and decisions about continuous action parameters governing how an action is executed. Existing…

Artificial Intelligence · Computer Science 2026-04-27 Rashmeet Kaur Nayyar , Naman Shah , Siddharth Srivastava

Learning how to act when there are many available actions in each state is a challenging task for Reinforcement Learning (RL) agents, especially when many of the actions are redundant or irrelevant. In such cases, it is sometimes easier to…

Machine Learning · Computer Science 2019-02-26 Tom Zahavy , Matan Haroush , Nadav Merlis , Daniel J. Mankowitz , Shie Mannor

Reinforcement learning (RL) is a machine learning approach that trains agents to maximize cumulative rewards through interactions with environments. The integration of RL with deep learning has recently resulted in impressive achievements…

Neural and Evolutionary Computing · Computer Science 2023-08-31 Hui Bai , Ran Cheng , Yaochu Jin

Despite the recent success of deep reinforcement learning (RL), domain adaptation remains an open problem. Although the generalization ability of RL agents is critical for the real-world applicability of Deep RL, zero-shot policy transfer…

Machine Learning · Computer Science 2021-09-06 Jinwei Xing , Takashi Nagata , Kexin Chen , Xinyun Zou , Emre Neftci , Jeffrey L. Krichmar

General game testing relies on the use of human play testers, play test scripting, and prior knowledge of areas of interest to produce relevant test data. Using deep reinforcement learning (DRL), we introduce a self-learning mechanism to…

Machine Learning · Computer Science 2021-03-31 Joakim Bergdahl , Camilo Gordillo , Konrad Tollmar , Linus Gisslén

In recent years deep reinforcement learning (RL) systems have attained superhuman performance in a number of challenging task domains. However, a major limitation of such applications is their demand for massive amounts of training data. A…

Reinforcement Learning (RL) in games has gained significant momentum in recent years, enabling the creation of different agent behaviors that can transform a player's gaming experience. However, deploying RL agents in production…

Artificial Intelligence · Computer Science 2025-07-01 António Afonso , Iolanda Leite , Alessandro Sestini , Florian Fuchs , Konrad Tollmar , Linus Gisslén

Discrete-continuous hybrid action space is a natural setting in many practical problems, such as robot control and game AI. However, most previous Reinforcement Learning (RL) works only demonstrate the success in controlling with either…

Machine Learning · Computer Science 2022-03-17 Boyan Li , Hongyao Tang , Yan Zheng , Jianye Hao , Pengyi Li , Zhen Wang , Zhaopeng Meng , Li Wang

The process of learning a manipulation task depends strongly on the action space used for exploration: posed in the incorrect action space, solving a task with reinforcement learning can be drastically inefficient. Additionally, similar…

Modern deep reinforcement learning (DRL) methods have made significant advances in handling continuous action spaces. However, real-world control systems, especially those requiring precise and reliable performance, often demand…

Machine Learning · Computer Science 2026-04-10 Xuyang Li , Romit Maulik

Learning effective policies for real-world problems is still an open challenge for the field of reinforcement learning (RL). The main limitation being the amount of data needed and the pace at which that data can be obtained. In this paper,…

Machine Learning · Computer Science 2022-02-04 Miguel Suau , Jinke He , Matthijs T. J. Spaan , Frans A. Oliehoek

Deep Reinforcement Learning has proved to be able to solve many control tasks in different fields, but the behavior of these systems is not always as expected when deployed in real-world scenarios. This is mainly due to the lack of domain…

Robotics · Computer Science 2021-04-29 Alessandro Paolo Capasso , Giulio Bacchiani , Alberto Broggi

Training deep reinforcement learning agents complex behaviors in 3D virtual environments requires significant computational resources. This is especially true in environments with high degrees of aliasing, where many states share nearly…

Machine Learning · Computer Science 2019-08-06 Spencer Frazier , Mark Riedl

Producing agents that can generalize to a wide range of visually different environments is a significant challenge in reinforcement learning. One method for overcoming this issue is visual domain randomization, whereby at the start of each…

Machine Learning · Computer Science 2020-03-09 Reda Bahi Slaoui , William R. Clements , Jakob N. Foerster , Sébastien Toth

In the domain of combat simulations, the training and deployment of deep reinforcement learning (RL) agents still face substantial challenges due to the dynamic and intricate nature of such environments. Unfortunately, as the complexity of…

Machine Learning · Computer Science 2024-08-27 Scotty Black , Christian Darken