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In recent years, reinforcement learning (RL) has acquired a prominent position in health-related sequential decision-making problems, gaining traction as a valuable tool for delivering adaptive interventions (AIs). However, in part due to a…

Machine Learning · Statistics 2024-07-16 Nina Deliu , Joseph Jay Williams , Bibhas Chakraborty

Reinforcement Learning (RL) is a potent tool for sequential decision-making and has achieved performance surpassing human capabilities across many challenging real-world tasks. As the extension of RL in the multi-agent system domain,…

Artificial Intelligence · Computer Science 2024-08-20 Ruiqi Zhang , Jing Hou , Florian Walter , Shangding Gu , Jiayi Guan , Florian Röhrbein , Yali Du , Panpan Cai , Guang Chen , Alois Knoll

In the training process of Deep Reinforcement Learning (DRL), agents require repetitive interactions with the environment. With an increase in training volume and model complexity, it is still a challenging problem to enhance data…

Machine Learning · Computer Science 2024-05-15 Jingwen Wang , Dehui Du , Yida Li , Yiyang Li , Yikang Chen

We study the problem of experiment design to learn causal structures from interventional data. We consider an active learning setting in which the experimenter decides to intervene on one of the variables in the system in each step and uses…

Artificial Intelligence · Computer Science 2020-09-09 Amir Amirinezhad , Saber Salehkaleybar , Matin Hashemi

Reinforcement Learning enables agents to learn optimal behaviors through interactions with environments. However, real-world environments are typically non-stationary, requiring agents to continuously adapt to new tasks and changing…

Artificial Intelligence · Computer Science 2026-01-21 Jinwu Hu , Zihao Lian , Zhiquan Wen , Chenghao Li , Guohao Chen , Xutao Wen , Bin Xiao , Mingkui Tan

Navigating and understanding complex and unknown environments autonomously demands more than just basic perception and movement from embodied agents. Truly effective exploration requires agents to possess higher-level cognitive abilities,…

Artificial Intelligence · Computer Science 2025-09-12 Abdel Hakim Drid , Vincenzo Suriani , Daniele Nardi , Abderrezzak Debilou

Medical imaging has revolutionized diagnosis, yet unnecessary procedures are rising, exposing patients to radiation and stress, limiting equitable access, and straining healthcare systems. The American College of Radiology Appropriateness…

Quantitative Methods · Quantitative Biology 2025-10-08 Anni Tziakouri , Filippo Menolascina

Standard reinforcement learning (RL) aims to find an optimal policy that identifies the best action for each state. However, in healthcare settings, many actions may be near-equivalent with respect to the reward (e.g., survival). We…

Machine Learning · Computer Science 2020-07-27 Shengpu Tang , Aditya Modi , Michael W. Sjoding , Jenna Wiens

Reinforcement learning (RL) is one of the most practical ways to learn from real-life use-cases. Motivated from the cognitive methods used by humans makes it a widely acceptable strategy in the field of artificial intelligence. Most of the…

Artificial Intelligence · Computer Science 2026-04-14 Abhishek Sawaika , Samuel Yen-Chi Chen , Udaya Parampalli , Rajkumar Buyya

The next-generation wireless network, 6G and beyond, envisions to integrate communication and sensing to overcome interference, improve spectrum efficiency, and reduce hardware and power consumption. Massive Multiple-Input Multiple Output…

Information Theory · Computer Science 2024-09-25 Anik Roy , Serene Banerjee , Jishnu Sadasivan , Arnab Sarkar , Soumyajit Dey

Reinforcement Learning (RL) is a powerful method for controlling dynamic systems, but its learning mechanism can lead to unpredictable actions that undermine the safety of critical systems. Here, we propose RL with Adaptive Regularization…

Machine Learning · Computer Science 2024-11-01 Haozhe Tian , Homayoun Hamedmoghadam , Robert Shorten , Pietro Ferraro

Multi-agent reinforcement learning (MARL) provides an efficient way for simultaneously learning policies for multiple agents interacting with each other. However, in scenarios requiring complex interactions, existing algorithms can suffer…

Machine Learning · Computer Science 2022-03-08 Xiaobai Ma , David Isele , Jayesh K. Gupta , Kikuo Fujimura , Mykel J. Kochenderfer

Artificial intelligence progresses towards the "Era of Experience," where agents are expected to learn from continuous, grounded interaction. We argue that traditional Reinforcement Learning (RL), which typically represents value as a…

Machine Learning · Computer Science 2025-05-29 Xidong Feng , Bo Liu , Yan Song , Haotian Fu , Ziyu Wan , Girish A. Koushik , Zhiyuan Hu , Mengyue Yang , Ying Wen , Jun Wang

Deep neural networks coupled with fast simulation and improved computation have led to recent successes in the field of reinforcement learning (RL). However, most current RL-based approaches fail to generalize since: (a) the gap between…

Machine Learning · Computer Science 2017-03-09 Lerrel Pinto , James Davidson , Rahul Sukthankar , Abhinav Gupta

The pursuit of decision safety in clinical applications highlights the potential of concept-based methods in medical imaging. While these models offer active interpretability, they often suffer from concept leakages, where unintended…

Computer Vision and Pattern Recognition · Computer Science 2025-06-10 Yibo Gao , Hangqi Zhou , Zheyao Gao , Bomin Wang , Shangqi Gao , Sihan Wang , Xiahai Zhuang

Innate values describe agents' intrinsic motivations, which reflect their inherent interests and preferences for pursuing goals and drive them to develop diverse skills that satisfy their various needs. Traditional reinforcement learning…

Artificial Intelligence · Computer Science 2025-06-11 Qin Yang

Proper functioning of connected and automated vehicles (CAVs) is crucial for the safety and efficiency of future intelligent transport systems. Meanwhile, transitioning to fully autonomous driving requires a long period of mixed autonomy…

Robotics · Computer Science 2022-11-08 Qi Liu , Xueyuan Li , Zirui Li , Jingda Wu , Guodong Du , Xin Gao , Fan Yang , Shihua Yuan

Reinforcement learning (RL) -- algorithms that teach artificial agents to interact with environments by maximising reward signals -- has achieved significant success in recent years. These successes have been facilitated by advances in…

Machine Learning · Computer Science 2025-04-03 Llewyn Salt , Marcus Gallagher

Reinforcement learning (RL) algorithms allow agents to learn skills and strategies to perform complex tasks without detailed instructions or expensive labelled training examples. That is, RL agents can learn, as we learn. Given the…

Machine Learning · Computer Science 2019-01-25 Jung Hoon Lee

Reinforcement learning (RL) has demonstrated its ability to solve high dimensional tasks by leveraging non-linear function approximators. However, these successes are mostly achieved by 'black-box' policies in simulated domains. When…

Machine Learning · Computer Science 2021-11-19 Riad Akrour , Davide Tateo , Jan Peters