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Related papers: $\pi^{*}_{0.6}$: a VLA That Learns From Experience

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Achieving truly adaptive embodied intelligence requires agents that learn not just by imitating static demonstrations, but by continuously improving through environmental interaction, which is akin to how humans master skills through…

Robotics · Computer Science 2025-12-17 Zechen Bai , Chen Gao , Mike Zheng Shou

The safe application of reinforcement learning (RL) requires generalization from limited training data to unseen scenarios. Yet, fulfilling tasks under changing circumstances is a key challenge in RL. Current state-of-the-art approaches for…

Machine Learning · Computer Science 2023-12-06 Philipp Altmann , Fabian Ritz , Leonard Feuchtinger , Jonas Nüßlein , Claudia Linnhoff-Popien , Thomy Phan

We introduce Latent Action Pretraining for general Action models (LAPA), an unsupervised method for pretraining Vision-Language-Action (VLA) models without ground-truth robot action labels. Existing Vision-Language-Action models require…

Improving data utilization efficiency is critical for scaling reinforcement learning (RL) for long-horizon tasks where generating trajectories is expensive. However, the dominant RL methods for LLMs are largely on-policy: they update each…

When autonomous vehicles are deployed on public roads, they will encounter countless and diverse driving situations. Many manually designed driving policies are difficult to scale to the real world. Fortunately, reinforcement learning has…

Robotics · Computer Science 2023-05-09 Letian Wang , Jie Liu , Hao Shao , Wenshuo Wang , Ruobing Chen , Yu Liu , Steven L. Waslander

Reinforcement learning (RL) agents improve through trial-and-error, but when reward is sparse and the agent cannot discover successful action sequences, learning stagnates. This has been a notable problem in training deep RL agents to…

Artificial Intelligence · Computer Science 2018-02-27 Evan Zheran Liu , Kelvin Guu , Panupong Pasupat , Tianlin Shi , Percy Liang

Vision-Language-Action (VLA) models based on flow matching have shown excellent performance in general-purpose robotic manipulation tasks. However, the action accuracy of these models on complex downstream tasks is unsatisfactory. One…

Robotics · Computer Science 2025-09-05 Hongyin Zhang , Shiyuan Zhang , Junxi Jin , Qixin Zeng , Yifan Qiao , Hongchao Lu , Donglin Wang

Reinforcement learning (RL) has emerged as a powerful approach for tackling complex medical decision-making problems such as treatment planning, personalized medicine, and optimizing the scheduling of surgeries and appointments. It has…

Computation and Language · Computer Science 2023-10-31 Ying Liu , Haozhu Wang , Huixue Zhou , Mingchen Li , Yu Hou , Sicheng Zhou , Fang Wang , Rama Hoetzlein , Rui Zhang

Learning-based approaches, such as reinforcement learning (RL) and imitation learning (IL), have indicated superiority over rule-based approaches in complex urban autonomous driving environments, showing great potential to make intelligent…

Robotics · Computer Science 2022-05-31 Haochen Liu , Zhiyu Huang , Jingda Wu , Chen Lv

When using reinforcement learning (RL) for contact-rich robotic manipulation, vision can provide task-relevant information that accelerates learning beyond what proprioception alone can achieve. However, vision-enabled policies tend to…

Robotics · Computer Science 2026-05-29 Victor Kowalski , Chengxi Li , Dongheui Lee

Vision--language--action (VLA) policies are trained to imitate actions; their loss never asks them to estimate reward, progress, or future success. Their frozen representations nevertheless carry such information, and it can be read out and…

Robotics · Computer Science 2026-05-28 Jiachen Zhang , Junnan Nie , Junyi Lao , Wei Cheng , Chenghao Liu , Jiaxin Jiang , Songfang Huang

Interactive digital agents (IDAs) leverage APIs of stateful digital environments to perform tasks in response to user requests. While IDAs powered by instruction-tuned large language models (LLMs) can react to feedback from interface…

Controlling artificial agents from visual sensory data is an arduous task. Reinforcement learning (RL) algorithms can succeed but require large amounts of interactions between the agent and the environment. To alleviate the issue,…

Artificial Intelligence · Computer Science 2023-05-26 Sai Rajeswar , Pietro Mazzaglia , Tim Verbelen , Alexandre Piché , Bart Dhoedt , Aaron Courville , Alexandre Lacoste

Standard vision-language-action (VLA) models rely on fitting statistical data priors, limiting their robust understanding of underlying physical dynamics. Reinforcement learning enhances physical grounding through exploration yet typically…

Robotics · Computer Science 2026-02-26 Chenyv Liu , Wentao Tan , Lei Zhu , Fengling Li , Jingjing Li , Guoli Yang , Heng Tao Shen

Vision-Language Action (VLA) models significantly advance robotic manipulation by leveraging the strong perception capabilities of pretrained vision-language models (VLMs). By integrating action modules into these pretrained models, VLA…

Computer Vision and Pattern Recognition · Computer Science 2025-10-20 Shaoqi Dong , Chaoyou Fu , Haihan Gao , Yi-Fan Zhang , Chi Yan , Chu Wu , Xiaoyu Liu , Yunhang Shen , Jing Huo , Deqiang Jiang , Haoyu Cao , Yang Gao , Xing Sun , Ran He , Caifeng Shan

In this study, we show that a movement policy can be improved efficiently using the previous experiences of a real robot. Reinforcement Learning (RL) is becoming a popular approach to acquire a nonlinear optimal policy through trial and…

Skill-based reinforcement learning (RL) has emerged as a promising strategy to leverage prior knowledge for accelerated robot learning. Skills are typically extracted from expert demonstrations and are embedded into a latent space from…

Robotics · Computer Science 2022-11-07 Krishan Rana , Ming Xu , Brendan Tidd , Michael Milford , Niko Sünderhauf

Imitation by observation is an approach for learning from expert demonstrations that lack action information, such as videos. Recent approaches to this problem can be placed into two broad categories: training dynamics models that aim to…

Machine Learning · Computer Science 2019-05-21 Ashley D. Edwards , Charles L. Isbell

Standard regression techniques, while powerful, are often constrained by predefined, differentiable loss functions such as mean squared error. These functions may not fully capture the desired behavior of a system, especially when dealing…

Machine Learning · Computer Science 2025-08-04 Yongchao Huang

In recent years, unmanned aerial vehicle (UAV) related technology has expanded knowledge in the area, bringing to light new problems and challenges that require solutions. Furthermore, because the technology allows processes usually carried…

Artificial Intelligence · Computer Science 2022-12-08 Cristian Millán-Arias , Ruben Contreras , Francisco Cruz , Bruno Fernandes