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Dynamic Reinforcement Learning (Dynamic RL), proposed in this paper, directly controls system dynamics, instead of the actor (action-generating neural network) outputs at each moment, bringing about a major qualitative shift in…

Machine Learning · Computer Science 2025-02-17 Katsunari Shibata

To improve the sample efficiency of policy-gradient based reinforcement learning algorithms, we propose implicit distributional actor-critic (IDAC) that consists of a distributional critic, built on two deep generator networks (DGNs), and a…

Machine Learning · Computer Science 2020-10-21 Yuguang Yue , Zhendong Wang , Mingyuan Zhou

We introduce an approach for deep reinforcement learning (RL) that improves upon the efficiency, generalization capacity, and interpretability of conventional approaches through structured perception and relational reasoning. It uses…

Robotic manipulation remains challenging for reinforcement learning due to contact-rich dynamics, long horizons, and training instability. Although off-policy actor-critic algorithms such as SAC and TD3 perform well in simulation, they…

Robotics · Computer Science 2026-04-03 Yu Zhang , Karl Mason

We study robust reinforcement learning (RL) with the goal of determining a well-performing policy that is robust against model mismatch between the training simulator and the testing environment. Previous policy-based robust RL algorithms…

Machine Learning · Computer Science 2023-12-12 Ruida Zhou , Tao Liu , Min Cheng , Dileep Kalathil , P. R. Kumar , Chao Tian

Deep reinforcement learning (RL) has recently shown great promise in robotic continuous control tasks. Nevertheless, prior research in this vein center around the centralized learning setting that largely relies on the communication…

Artificial Intelligence · Computer Science 2021-12-30 Dongge Han , Chris Xiaoxuan Lu , Tomasz Michalak , Michael Wooldridge

Actor-critic methods, a type of model-free reinforcement learning (RL), have achieved state-of-the-art performances in many real-world domains in continuous control. Despite their success, the wide-scale deployment of these models is still…

Machine Learning · Computer Science 2020-12-14 Srinjoy Roy , Saptam Bakshi , Tamal Maharaj

This paper proposes, implements, and evaluates a reinforcement learning (RL)-based computational framework for automatic mesh generation. Mesh generation plays a fundamental role in numerical simulations in the area of computer aided design…

Machine Learning · Computer Science 2024-06-07 Jie Pan , Jingwei Huang , Gengdong Cheng , Yong Zeng

We propose a new policy iteration theory as an important extension of soft policy iteration and Soft Actor-Critic (SAC), one of the most efficient model free algorithms for deep reinforcement learning. Supported by the new theory, arbitrary…

Machine Learning · Computer Science 2019-02-18 Gang Chen , Yiming Peng

Actor-critic methods for decentralized multi-agent reinforcement learning (MARL) facilitate collaborative optimal decision making without centralized coordination, thus enabling a wide range of applications in practice. To date, however,…

Machine Learning · Computer Science 2025-08-14 Zhiyao Zhang , Myeung Suk Oh , FNU Hairi , Ziyue Luo , Alvaro Velasquez , Jia Liu

Background: Deep Deterministic Policy Gradient-based reinforcement learning algorithms utilize Actor-Critic architectures, where both networks are typically trained using identical batches of replayed transitions. However, the learning…

Machine Learning · Computer Science 2025-12-08 Mehmet Efe Lorasdagi , Dogan Can Cicek , Furkan Burak Mutlu , Suleyman Serdar Kozat

Scene Coordinate Regression (SCR) is a visual localization technique that utilizes deep neural networks (DNN) to directly regress 2D-3D correspondences for camera pose estimation. However, current SCR methods often face challenges in…

Robotics · Computer Science 2025-08-26 Kuan Xu , Zeyu Jiang , Haozhi Cao , Shenghai Yuan , Chen Wang , Lihua Xie

Policy gradient methods in actor-critic reinforcement learning (RL) have become perhaps the most promising approaches to solving continuous optimal control problems. However, the trial-and-error nature of RL and the inherent randomness…

Machine Learning · Computer Science 2024-04-19 Ruofan Wu , Junmin Zhong , Jennie Si

Dynamic discrete choice (DDC) models have found widespread application in marketing. However, estimating these becomes challenging in "big data" settings with high-dimensional state-action spaces. To address this challenge, this paper…

Econometrics · Economics 2026-01-06 Ahmed Khwaja , Sonal Srivastava

Automated vehicle control using reinforcement learning (RL) has attracted significant attention due to its potential to learn driving policies through environment interaction. However, RL agents often face training challenges in sample…

Robotics · Computer Science 2025-09-08 Zhihao Zhang , Chengyang Peng , Ekim Yurtsever , Keith A. Redmill

Contrastive learning has achieved great success in skeleton-based representation learning recently. However, the prevailing methods are predominantly negative-based, necessitating additional momentum encoder and memory bank to get negative…

Computer Vision and Pattern Recognition · Computer Science 2024-12-17 Wanjiang Weng , Hongsong Wang , Junbo Wang , Lei He , Guosen Xie

Future deep learning models will be distinguished by systems that perpetually learn through interaction, imagination, and cooperation, blurring the line between training and inference. This makes continual learning a critical challenge, as…

Machine Learning · Computer Science 2025-05-20 Truman Hickok

Deep neural networks provide Reinforcement Learning (RL) powerful function approximators to address large-scale decision-making problems. However, these approximators introduce challenges due to the non-stationary nature of RL training. One…

Machine Learning · Computer Science 2024-12-12 Hongyao Tang , Glen Berseth

This paper implements deep reinforcement learning (DRL) with a safety filter for spacecraft reorientation control with a single pointing keep-out zone. A new state space representation is designed which includes a compact representation of…

Systems and Control · Electrical Eng. & Systems 2026-05-20 Juntang Yang , Mohamed Khalil Ben-Larbi

Deep reinforcement learning (RL) has proven a powerful technique in many sequential decision making domains. However, Robotics poses many challenges for RL, most notably training on a physical system can be expensive and dangerous, which…

Robotics · Computer Science 2017-10-19 Lerrel Pinto , Marcin Andrychowicz , Peter Welinder , Wojciech Zaremba , Pieter Abbeel