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Active Reconfigurable Intelligent Surfaces (RIS) are a promising technology for 6G wireless networks. This paper investigates a novel hybrid deep reinforcement learning (DRL) framework for resource allocation in a multi-user uplink system…

信号处理 · 电气工程与系统科学 2025-12-29 Mohamed Shalma , Engy Aly Maher , Ahmed El-Mahdy

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…

机器学习 · 计算机科学 2024-04-19 Ruofan Wu , Junmin Zhong , Jennie Si

Model-based reinforcement learning (MBRL) and model-free reinforcement learning (MFRL) evolve along distinct paths but converge in the design of Dyna-Q [1]. However, modern RL methods still struggle with effective transferability across…

机器学习 · 计算机科学 2025-12-18 Quanxi Zhou , Wencan Mao , Manabu Tsukada , John C. S. Lui , Yusheng Ji

Stochastic gradient descent (SGD), which updates the model parameters by adding a local gradient times a learning rate at each step, is widely used in model training of machine learning algorithms such as neural networks. It is observed…

机器学习 · 计算机科学 2017-06-01 Chang Xu , Tao Qin , Gang Wang , Tie-Yan Liu

Multi-agent deep reinforcement learning has been applied to address a variety of complex problems with either discrete or continuous action spaces and achieved great success. However, most real-world environments cannot be described by only…

机器学习 · 计算机科学 2022-06-13 Hongzhi Hua , Kaigui Wu , Guixuan Wen

Many real-world scenarios involve a team of agents that have to coordinate their policies to achieve a shared goal. Previous studies mainly focus on decentralized control to maximize a common reward and barely consider the coordination…

多智能体系统 · 计算机科学 2022-01-19 Jingqing Ruan , Yali Du , Xuantang Xiong , Dengpeng Xing , Xiyun Li , Linghui Meng , Haifeng Zhang , Jun Wang , Bo Xu

Robust and performant controllers are essential for industrial applications. However, deriving controller parameters for complex and nonlinear systems is challenging and time-consuming. To facilitate automatic controller parametrization,…

机器学习 · 计算机科学 2024-01-11 Thomas Rudolf , Daniel Flögel , Tobias Schürmann , Simon Süß , Stefan Schwab , Sören Hohmann

Many real-world applications involve teams of agents that have to coordinate their actions to reach a common goal against potential adversaries. This paper focuses on zero-sum games where a team of players faces an opponent, as is the case,…

人工智能 · 计算机科学 2019-12-18 Andrea Celli , Marco Ciccone , Raffaele Bongo , Nicola Gatti

This paper introduces a novel reinforcement learning (RL) strategy designed to facilitate rapid autonomy transfer by utilizing pre-trained critic value functions from multiple environments. Unlike traditional methods that require extensive…

Reinforcement learning (RL), known for its self-evolution capability, offers a promising approach to training high-level autonomous driving systems. However, handling constraints remains a significant challenge for existing RL algorithms,…

机器人学 · 计算机科学 2025-05-21 Feihong Zhang , Guojian Zhan , Bin Shuai , Tianyi Zhang , Jingliang Duan , Shengbo Eben Li

Autonomous driving with reinforcement learning (RL) has significant potential. However, applying RL in real-world settings remains challenging due to the need for safe, efficient, and robust learning. Incorporating human expertise into the…

机器学习 · 计算机科学 2025-10-08 Li Zeqiao , Wang Yijing , Wang Haoyu , Li Zheng , Li Peng , Liu Wenfei , Zuo Zhiqiang

Actor-critic deep reinforcement learning (DRL) algorithms have recently achieved prominent success in tackling various challenging reinforcement learning (RL) problems, particularly complex control tasks with high-dimensional continuous…

机器学习 · 计算机科学 2023-05-04 Gang Chen , Victoria Huang

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…

机器学习 · 计算机科学 2021-02-09 Yannis Flet-Berliac , Johan Ferret , Olivier Pietquin , Philippe Preux , Matthieu Geist

Soft Actor Critic (SAC) algorithms show remarkable performance in complex simulated environments. A key element of SAC networks is entropy regularization, which prevents the SAC actor from optimizing against fine grained features,…

机器学习 · 计算机科学 2020-06-23 Miguel Campo , Zhengxing Chen , Luke Kung , Kittipat Virochsiri , Jianyu Wang

To harness the full potential of beyond 5G (B5G) communication systems, zero-touch network slicing (NS) is viewed as a promising fully-automated management and orchestration (MANO) system. This paper proposes a novel knowledge plane…

网络与互联网体系结构 · 计算机科学 2022-01-25 Farhad Rezazadeh , Hatim Chergui , Loizos Christofi , Christos Verikoukis

This study develops and evaluates a deep reinforcement learning framework for dynamic portfolio allocation across global equity markets. The Soft Actor-Critic algorithm is used to learn continuous portfolio weights within a Markov Decision…

投资组合管理 · 定量金融 2026-05-19 Kamil Kashif , Robert Ślepaczuk

We propose a novel deep symbolic regression approach to enhance the robustness and interpretability of data-driven mathematical expression discovery. Our work is aligned with the popular DSR framework which focuses on learning a…

机器学习 · 计算机科学 2026-03-30 Zachary Bastiani , Robert M. Kirby , Jacob Hochhalter , Shandian Zhe

Deep off-policy actor-critic algorithms have emerged as the leading framework for reinforcement learning in continuous control domains. However, most of these algorithms suffer from poor sample efficiency, especially in environments with…

机器学习 · 计算机科学 2026-02-25 Zahra Shahrooei , Ali Baheri

We study the robustness of deep reinforcement learning algorithms against distribution shifts within contextual multi-stage stochastic combinatorial optimization problems from the operations research domain. In this context, risk-sensitive…

机器学习 · 计算机科学 2024-02-16 Tobias Enders , James Harrison , Maximilian Schiffer

Most prior approaches to offline reinforcement learning (RL) utilize \textit{behavior regularization}, typically augmenting existing off-policy actor critic algorithms with a penalty measuring divergence between the policy and the offline…

机器学习 · 计算机科学 2021-10-15 Haoran Xu , Xianyuan Zhan , Jianxiong Li , Honglei Yin