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We present a deep neural network-based approach to image quality assessment (IQA). The network is trained end-to-end and comprises ten convolutional layers and five pooling layers for feature extraction, and two fully connected layers for…

计算机视觉与模式识别 · 计算机科学 2017-12-11 Sebastian Bosse , Dominique Maniry , Klaus-Robert Müller , Thomas Wiegand , Wojciech Samek

Alleviating overestimation bias is a critical challenge for deep reinforcement learning to achieve successful performance on more complex tasks or offline datasets containing out-of-distribution data. In order to overcome overestimation…

机器学习 · 计算机科学 2024-01-09 Dohyeok Lee , Seungyub Han , Taehyun Cho , Jungwoo Lee

While deep learning through empirical risk minimization (ERM) has succeeded at achieving human-level performance at a variety of complex tasks, ERM is not robust to distribution shifts or adversarial attacks. Synthetic data augmentation…

Deep reinforcement learning (RL) agents often fail to generalize to unseen scenarios, even when they are trained on many instances of semantically similar environments. Data augmentation has recently been shown to improve the sample…

机器学习 · 计算机科学 2021-02-23 Roberta Raileanu , Max Goldstein , Denis Yarats , Ilya Kostrikov , Rob Fergus

We propose a new reinforcement learning based approach to designing hierarchical linear quadratic regulator (LQR) controllers for heterogeneous linear multi-agent systems with unknown state-space models and separated control objectives. The…

系统与控制 · 电气工程与系统科学 2020-07-29 He Bai , Jemin George , Aranya Chakrabortty

Deep learning has shown great potential in accelerating diffusion tensor imaging (DTI). Nevertheless, existing methods tend to suffer from Rician noise and eddy current, leading to detail loss in reconstructing the DTI-derived parametric…

图像与视频处理 · 电气工程与系统科学 2024-08-21 Wenxin Fan , Jian Cheng , Cheng Li , Jing Yang , Ruoyou Wu , Juan Zou , Shanshan Wang

Diffusion models excel at modeling complex data distributions, including those of images, proteins, and small molecules. However, in many cases, our goal is to model parts of the distribution that maximize certain properties: for example,…

Reinforcement Learning (RL) has been widely used to solve tasks where the environment consistently provides a dense reward value. However, in real-world scenarios, rewards can often be poorly defined or sparse. Auxiliary signals are…

人工智能 · 计算机科学 2024-08-01 David Valencia , Henry Williams , Yuning Xing , Trevor Gee , Minas Liarokapis , Bruce A. MacDonald

Self-supervised learning and data augmentation have significantly reduced the performance gap between state and image-based reinforcement learning agents in continuous control tasks. However, it is still unclear whether current techniques…

机器学习 · 计算机科学 2020-12-01 Jake Grigsby , Yanjun Qi

Reinforcement Learning with Verifiable Rewards (RLVR) strengthens LLM reasoning, but training often oscillates between {entropy collapse} and {entropy explosion}. We trace both hazards to the mean baseline used in value-free RL (e.g., GRPO…

机器学习 · 计算机科学 2026-03-03 Junkang Wu , Kexin Huang , Jiancan Wu , An Zhang , Xiang Wang , Xiangnan He

Reinforcement learning is a model-free optimal control method that optimizes a control policy through direct interaction with the environment. For reaching tasks that end in regulation, popular discrete-action methods are not well suited…

机器人学 · 计算机科学 2021-06-23 Wouter Caarls

Recent advances in deep reinforcement learning have achieved human-level performance on a variety of real-world applications. However, the current algorithms still suffer from poor gradient estimation with excessive variance, resulting in…

机器学习 · 计算机科学 2019-05-21 Wei-Ye Zhao , Xi-Ya Guan , Yang Liu , Xiaoming Zhao , Jian Peng

Reinforcement learning algorithms based on Q-learning are driving Deep Reinforcement Learning (DRL) research towards solving complex problems and achieving super-human performance on many of them. Nevertheless, Q-Learning is known to be…

机器学习 · 计算机科学 2022-06-14 Andrea Cini , Carlo D'Eramo , Jan Peters , Cesare Alippi

Reinforcement learning (RL) in sparse-reward environments remains a significant challenge due to the lack of informative feedback. We propose a simple yet effective method that uses a small number of successful demonstrations to initialize…

机器学习 · 计算机科学 2025-10-29 Seyed Mahdi Basiri Azad , Joschka Boedecker

While deep learning has had significant successes in computer vision thanks to the abundance of visual data, collecting sufficiently large real-world datasets for robot learning can be costly. To increase the practicality of these…

机器人学 · 计算机科学 2017-12-20 Fangyi Zhang , Jürgen Leitner , Michael Milford , Peter Corke

Scaling up the model size and computation has brought consistent performance improvements in supervised learning. However, this lesson often fails to apply to reinforcement learning (RL) because training the model on non-stationary data…

机器学习 · 计算机科学 2025-05-30 Hojoon Lee , Youngdo Lee , Takuma Seno , Donghu Kim , Peter Stone , Jaegul Choo

DeepSeek-R1 has demonstrated powerful reasoning capabilities in the text domain through stable reinforcement learning (RL). Recently, in the multimodal domain, works have begun to directly apply RL to generate R1-like free-form reasoning…

计算机视觉与模式识别 · 计算机科学 2025-12-04 Chuming Shen , Wei Wei , Xiaoye Qu , Yu Cheng

Reinforcement Learning (RL) has achieved significant milestones in the gaming domain, most notably Google DeepMind's AlphaGo defeating human Go champion Ken Jie. This victory was also made possible through the Atari Learning Environment…

机器学习 · 计算机科学 2023-10-16 Christian A. Schiller

Reinforcement Learning (RL) has opened up new opportunities to enhance existing smart systems that generally include a complex decision-making process. However, modern RL algorithms, e.g., Deep Q-Networks (DQN), are based on deep neural…

机器学习 · 计算机科学 2023-06-22 Yang Ni , Danny Abraham , Mariam Issa , Yeseong Kim , Pietro Mercati , Mohsen Imani

In industrial environments, an increasing amount of wireless devices are used, which utilize license-free bands. As a consequence of these mutual interferences of wireless systems might decrease the state of coexistence. Therefore, a…

信号处理 · 电气工程与系统科学 2018-06-14 Philip Soeffker , Dimitri Block , Nico Wiebusch , Uwe Meier
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