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Achieving human-like dexterous manipulation remains a major challenge for general-purpose robots. While Vision-Language-Action (VLA) models show potential in learning skills from demonstrations, their scalability is limited by scarce…

Robotics · Computer Science 2025-12-16 Yu Cui , Yujian Zhang , Lina Tao , Yang Li , Xinyu Yi , Zhibin Li

The Visual-Language-Action (VLA) models can follow text instructions according to visual observations of the surrounding environment. This ability to map multimodal inputs to actions is derived from the training of the VLA model on…

Computer Vision and Pattern Recognition · Computer Science 2025-09-24 Jinyue Bian , Zhaoxing Zhang , Zhengyu Liang , Shiwei Zheng , Shengtao Zhang , Rong Shen , Chen Yang , Anzhou Hou

Vision-Language-Action (VLA) models have demonstrated significant potential for generalist robotic policies; however, they struggle to generalize to long-horizon complex tasks in novel real-world domains due to distribution shifts and the…

Robotics · Computer Science 2026-02-25 Zhian Su , Weijie Kong , Haonan Dong , Huixu Dong

Vision-Language-Action (VLA) systems have shown strong potential for language-driven robotic manipulation. However, scaling them to long-horizon tasks remains challenging. Existing pipelines typically separate data collection, policy…

Recent Vision-Language-Action (VLA) models have made impressive progress toward general-purpose robotic manipulation by post-training large Vision-Language Models (VLMs) for action prediction. Yet most VLAs entangle perception and control…

We present VILAS, a fully low-cost, modular robotic manipulation platform designed to support end-to-end vision-language-action (VLA) policy learning and deployment on accessible hardware. The system integrates a Fairino FR5 collaborative…

Robotics · Computer Science 2026-05-26 Zijian An , Hadi Khezam , Bill Cai , Ran Yang , Shijie Geng , Yiming Feng , Yue Zheng , Lifeng Zhou

Robotic manipulation policies often fail to generalize because they must simultaneously learn where to attend, what actions to take, and how to execute them. We argue that high-level reasoning about where and what can be offloaded to…

Learning open-vocabulary physical skills for simulated agents presents a significant challenge in artificial intelligence. Current reinforcement learning approaches face critical limitations: manually designed rewards lack scalability…

Computer Vision and Pattern Recognition · Computer Science 2025-09-15 Jieming Cui , Tengyu Liu , Ziyu Meng , Jiale Yu , Ran Song , Wei Zhang , Yixin Zhu , Siyuan Huang

Vision-Language-Action (VLA) models remain brittle in long-horizon, contact-rich manipulation because success-only imitation provides little supervision for execution drift, while failed rollouts are often discarded. We introduce RePO-VLA,…

Vision-language-action (VLA) models provide strong action priors for robotic manipulation, but their reactive behavior can fail under distribution shift and long-horizon task structure. Recent VLA-guided planning methods improve execution…

Robotics · Computer Science 2026-05-25 Ke Ren , Ali Salamatian , Kieran Pattison , Cyrus Neary

Reward engineering is one of the key challenges in Reinforcement Learning (RL). Preference-based RL effectively addresses this issue by learning from human feedback. However, it is both time-consuming and expensive to collect human…

Machine Learning · Computer Science 2025-02-18 Runze Liu , Chenjia Bai , Jiafei Lyu , Shengjie Sun , Yali Du , Xiu Li

Vision-language-action (VLA) models have shown strong potential for generalist robot manipulation, yet they remain limited by insufficient spatial reasoning, particularly in determining where to interact in complex visual scenes. While…

Robotics · Computer Science 2026-05-26 Runze Wang , Yuqian Fu , Yu Li , Tao Lin , Tianwen Qian , Mohamed Elhoseiny , Bo Zhao , Yanwei Fu , Yu-Gang Jiang , Xiangyang Xue

The ability to efficiently and reliably learn new tasks has been a foundational challenge in robotics. Vision-Language-Action (VLA) models have demonstrated strong generalization across diverse manipulation tasks, yet pretrained policies…

Robotics · Computer Science 2026-05-26 Perry Dong , Kuo-Han Hung , Tian Gao , Dorsa Sadigh , Chelsea Finn

Vision Language Action (VLA) models represent a transformative shift in robotics, with the aim of unifying visual perception, natural language understanding, and embodied control within a single learning framework. This review presents a…

Robotics · Computer Science 2026-01-21 Muhayy Ud Din , Waseem Akram , Lyes Saad Saoud , Jan Rosell , Irfan Hussain

We present GR-RL, a robotic learning framework that turns a generalist vision-language-action (VLA) policy into a highly capable specialist for long-horizon dexterous manipulation. Assuming the optimality of human demonstrations is core to…

In real-world applications of reinforcement learning (RL), noise from inherent stochasticity of environments is inevitable. However, current policy evaluation algorithms, which plays a key role in many RL algorithms, are either prone to…

Machine Learning · Computer Science 2019-06-19 Tadashi Kozuno , Dongqi Han , Kenji Doya

Dexterous robotic hands often struggle to generalize effectively in complex environments due to the limitations of models trained on low-diversity data. However, the real world presents an inherently unbounded range of scenarios, making it…

Computer Vision and Pattern Recognition · Computer Science 2025-03-20 Yufei Zhu , Yiming Zhong , Zemin Yang , Peishan Cong , Jingyi Yu , Xinge Zhu , Yuexin Ma

Reinforcement learning (RL) can refine Vision-Language-Action (VLA) policies beyond behavior cloning, but real-world RL remains expensive due to extensive rollouts, resets, supervision, and safety risks. Action-conditioned video world…

Robotics · Computer Science 2026-05-26 Xiaokang Liu , Zechen Bai , Hai Ci , Kevin Yuchen Ma , Mike Zheng Shou

Parameter-Efficient Fine-Tuning (PEFT) effectively adapts pre-trained transformers to downstream tasks. However, the optimization of tasks performance often comes at the cost of generalizability in fine-tuned models. To address this issue,…

Machine Learning · Computer Science 2026-03-09 Yao Ni , Shan Zhang , Piotr Koniusz

Vision-Language-Action (VLA) models demonstrate promising generalization in robotic manipulation, driven by advances in large-scale vision and language pre-training. This progress can be misleading. Despite the zero-shot perception and…