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Reward design remains a critical bottleneck in visual reinforcement learning (RL) for robotic manipulation. In simulated environments, rewards are conventionally designed based on the distance to a target position. However, such precise…

Machine Learning · Computer Science 2025-09-29 Nan Tang , Jing-Cheng Pang , Guanlin Li , Chao Qian , Yang Yu

Deep reinforcement learning (RL) has emerged as a promising approach for autonomously acquiring complex behaviors from low level sensor observations. Although a large portion of deep RL research has focused on applications in video games…

Robotics · Computer Science 2021-02-08 Julian Ibarz , Jie Tan , Chelsea Finn , Mrinal Kalakrishnan , Peter Pastor , Sergey Levine

Deploying learned control policies in real-world environments poses a fundamental challenge. When system dynamics change unexpectedly, performance degrades until models are retrained on new data. We introduce Reflexive World Models (RWM), a…

Machine Learning · Computer Science 2025-05-22 Carlos Stein Brito , Daniel McNamee

The strong performance of large vision-language models (VLMs) trained with reinforcement learning (RL) has motivated similar approaches for fine-tuning vision-language-action (VLA) models in robotics. Many recent works fine-tune VLAs…

Robotics · Computer Science 2026-03-31 Andrew Choi , Xinjie Wang , Zhizhong Su , Wei Xu

Much of model-based reinforcement learning involves learning a model of an agent's world, and training an agent to leverage this model to perform a task more efficiently. While these models are demonstrably useful for agents, every…

Neural and Evolutionary Computing · Computer Science 2019-11-01 C. Daniel Freeman , Luke Metz , David Ha

Reinforcement Learning (RL)-based control system has received considerable attention in recent decades. However, in many real-world problems, such as Batch Process Control, the environment is uncertain, which requires expensive interaction…

Machine Learning · Computer Science 2022-11-03 Peng Zhang , Yawen Huang , Bingzhang Hu , Shizheng Wang , Haoran Duan , Noura Al Moubayed , Yefeng Zheng , Yang Long

Predictive models have been at the core of many robotic systems, from quadrotors to walking robots. However, it has been challenging to develop and apply such models to practical robotic manipulation due to high-dimensional sensory…

Robotics · Computer Science 2020-09-14 Lucas Manuelli , Yunzhu Li , Pete Florence , Russ Tedrake

Action-conditioned video prediction models (often referred to as world models) have shown strong potential for robotics applications, but existing approaches are often slow and struggle to capture physically consistent interactions over…

This work highlights that video world modeling, alongside vision-language pre-training, establishes a fresh and independent foundation for robot learning. Intuitively, video world models provide the ability to imagine the near future by…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Lin Li , Qihang Zhang , Yiming Luo , Shuai Yang , Ruilin Wang , Fei Han , Mingrui Yu , Zelin Gao , Nan Xue , Xing Zhu , Yujun Shen , Yinghao Xu

Reinforcement learning (RL) is a powerful approach for robot learning. However, model-free RL (MFRL) requires a large number of environment interactions to learn successful control policies. This is due to the noisy RL training updates and…

Robotics · Computer Science 2025-02-28 Maria Krinner , Elie Aljalbout , Angel Romero , Davide Scaramuzza

Reinforcement learning (RL) promises to unlock capabilities beyond imitation learning for Vision-Language-Action (VLA) models, but its requirement for massive real-world interaction prevents direct deployment on physical robots. Recent work…

Recently, safe reinforcement learning (RL) with the actor-critic structure for continuous control tasks has received increasing attention. It is still challenging to learn a near-optimal control policy with safety and convergence…

Machine Learning · Computer Science 2024-02-06 Xinglong Zhang , Yaoqian Peng , Biao Luo , Wei Pan , Xin Xu , Haibin Xie

Generalist robot policies can now perform a wide range of manipulation skills, but evaluating and improving their ability with unfamiliar objects and instructions remains a significant challenge. Rigorous evaluation requires a large number…

Robotics · Computer Science 2026-03-03 Yanjiang Guo , Lucy Xiaoyang Shi , Jianyu Chen , Chelsea Finn

Simulation-to-reality reinforcement learning (RL) faces the critical challenge of reconciling discrepancies between simulated and real-world dynamics, which can severely degrade agent performance. A promising approach involves learning…

Machine Learning · Computer Science 2025-04-04 JB Lanier , Kyungmin Kim , Armin Karamzade , Yifei Liu , Ankita Sinha , Kat He , Davide Corsi , Roy Fox

Reinforcement Learning (RL) has achieved impressive results in robotics, yet high-performing pipelines remain highly task-specific, with little reuse of prior data. Offline Model-based RL (MBRL) offers greater data efficiency by training…

Robotics · Computer Science 2026-01-09 Chenhao Li , Andreas Krause , Marco Hutter

Humanoid robots have attracted significant attention in recent years. Reinforcement Learning (RL) is one of the main ways to control the whole body of humanoid robots. RL enables agents to complete tasks by learning from environment…

Robotics · Computer Science 2025-03-31 Xianqi Zhang , Hongliang Wei , Wenrui Wang , Xingtao Wang , Xiaopeng Fan , Debin Zhao

World models aim to improve robotic decision making by predicting the consequences of actions. However, in practice, their predictions often become unreliable once the robot encounters states outside the training distribution, limiting…

Robotics · Computer Science 2026-05-18 Tuo An , Jindou Jia , Gen Li , Jingliang Li , Chuhao Zhou , Pengfei Liu , Bofan Lyu , Jiaqi Bai , Xinying Guo , Geng Li , Jianfei Yang

Post-training is essential for turning pretrained generalist robot policies into reliable task-specific controllers, but existing human-in-the-loop pipelines remain tied to physical execution: each correction requires robot time, scene…

Robotics · Computer Science 2026-05-06 Yaxuan Li , Zhongyi Zhou , Yefei Chen , Yanjiang Guo , Jiaming Liu , Shanghang Zhang , Jianyu Chen , Yichen Zhu

An oft-ignored challenge of real-world reinforcement learning is that the real world does not pause when agents make learning updates. As standard simulated environments do not address this real-time aspect of learning, most available…

Robotics · Computer Science 2022-04-01 Yufeng Yuan , A. Rupam Mahmood

The ability to plan into the future while utilizing only raw high-dimensional observations, such as images, can provide autonomous agents with broad capabilities. Visual model-based reinforcement learning (RL) methods that plan future…

Machine Learning · Computer Science 2021-08-10 Oleh Rybkin , Chuning Zhu , Anusha Nagabandi , Kostas Daniilidis , Igor Mordatch , Sergey Levine