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Modeling generalized robot control policies poses ongoing challenges for language-guided robot manipulation tasks. Existing methods often struggle to efficiently utilize cross-dataset resources or rely on resource-intensive vision-language…

Robotics · Computer Science 2024-11-05 Wenhui Tan , Bei Liu , Junbo Zhang , Ruihua Song , Jianlong Fu

Real-time execution is crucial for deploying Vision-Language-Action (VLA) models in the physical world. Existing asynchronous inference methods primarily optimize trajectory smoothness, but neglect the critical latency in reacting to…

Robotics · Computer Science 2026-05-19 Yuxiang Lu , Zhe Liu , Xianzhe Fan , Zhenya Yang , Jinghua Hou , Junyi Li , Kaixin Ding , Hengshuang Zhao

Learning visuomotor policy for multi-task robotic manipulation has been a long-standing challenge for the robotics community. The difficulty lies in the diversity of action space: typically, a goal can be accomplished in multiple ways,…

Robotics · Computer Science 2025-03-24 Kun Wu , Yichen Zhu , Jinming Li , Junjie Wen , Ning Liu , Zhiyuan Xu , Jian Tang

In Reinforcement Learning, agents learn policies by exploring and interacting with the environment. Due to the curse of dimensionality, learning policies that map high-dimensional sensory input to motor output is particularly challenging.…

For robots operating in the real world, it is desirable to learn reusable behaviours that can effectively be transferred and adapted to numerous tasks and scenarios. We propose an approach to learn abstract motor skills from data using a…

The subject of this paper is reinforcement learning. Policies are considered here that produce actions based on states and random elements autocorrelated in subsequent time instants. Consequently, an agent learns from experiments that are…

Machine Learning · Computer Science 2020-09-11 Marcin Szulc , Jakub Łyskawa , Paweł Wawrzyński

To improve efficiency and temporal coherence, Vision-Language-Action (VLA) models often predict action chunks; however, this action chunking harms reactivity under inference delay and long horizons. We introduce Asynchronous Action Chunk…

Robotics · Computer Science 2025-09-30 Kohei Sendai , Maxime Alvarez , Tatsuya Matsushima , Yutaka Matsuo , Yusuke Iwasawa

In reinforcement learning, temporal abstraction in the action space, exemplified by action repetition, is a technique to facilitate policy learning through extended actions. However, a primary limitation in previous studies of action…

Machine Learning · Computer Science 2024-02-09 Joongkyu Lee , Seung Joon Park , Yunhao Tang , Min-hwan Oh

Deep reinforcement learning agents often exhibit erratic, high-frequency control behaviors that hinder real-world deployment due to excessive energy consumption and mechanical wear. We systematically investigate action smoothness…

Artificial Intelligence · Computer Science 2026-01-06 Faizan Ahmed , Aniket Dixit , James Brusey

End-to-end learning is emerging as a powerful paradigm for robotic manipulation, but its effectiveness is limited by data scarcity and the heterogeneity of action spaces across robot embodiments. In particular, diverse action spaces across…

Robotics · Computer Science 2026-03-23 Erik Bauer , Elvis Nava , Robert K. Katzschmann

Learning to manipulate objects efficiently, particularly those involving sustained contact (e.g., pushing, sliding) and articulated parts (e.g., drawers, doors), presents significant challenges. Traditional methods, such as robot-centric…

Robotics · Computer Science 2025-03-18 Shijie Fang , Wenchang Gao , Shivam Goel , Christopher Thierauf , Matthias Scheutz , Jivko Sinapov

We present a scalable framework for cross-embodiment humanoid robot control by learning a shared latent representation that unifies motion across humans and diverse humanoid platforms, including single-arm, dual-arm, and legged humanoid…

Robotics · Computer Science 2026-01-23 Yashuai Yan , Dongheui Lee

Reinforcement Learning (RL) of contact-rich manipulation tasks has yielded impressive results in recent years. While many studies in RL focus on varying the observation space or reward model, few efforts focused on the choice of action…

We present Q-chunking, a simple yet effective recipe for improving reinforcement learning (RL) algorithms for long-horizon, sparse-reward tasks. Our recipe is designed for the offline-to-online RL setting, where the goal is to leverage an…

Machine Learning · Computer Science 2026-05-12 Qiyang Li , Zhiyuan Zhou , Sergey Levine

Action chunking can improve exploration and value estimation in long horizon reinforcement learning, but makes learning substantially harder since the critic must evaluate action sequences rather than single actions, greatly increasing…

Vision-Language-Action (VLA) models demonstrate significant potential for developing generalized policies in real-world robotic control. This progress inspires researchers to explore fine-tuning these models with Reinforcement Learning…

Robotics · Computer Science 2025-08-05 Dongchi Huang , Zhirui Fang , Tianle Zhang , Yihang Li , Lin Zhao , Chunhe Xia

Robotic manipulation in unstructured environments requires reliable execution under diverse conditions, yet many state-of-the-art systems still struggle with high-dimensional action spaces, sparse rewards, and slow generalization beyond…

Robotics · Computer Science 2026-01-30 Leonidas Askianakis , Aleksandr Artemov

Large Chunk Test-Time Training (LaCT) has shown strong performance on long-context 3D reconstruction, but its fully plastic inference-time updates remain vulnerable to catastrophic forgetting and overfitting. As a result, LaCT is typically…

Computer Vision and Pattern Recognition · Computer Science 2026-04-09 Ziqiao Ma , Xueyang Yu , Haoyu Zhen , Yuncong Yang , Joyce Chai , Chuang Gan

In classic reinforcement learning algorithms, agents make decisions at discrete and fixed time intervals. The duration between decisions becomes a crucial hyperparameter, as setting it too short may increase the problem's difficulty by…

Machine Learning · Computer Science 2023-10-26 Amirmohammad Karimi , Jun Jin , Jun Luo , A. Rupam Mahmood , Martin Jagersand , Samuele Tosatto

One of the great promises of robot learning systems is that they will be able to learn from their mistakes and continuously adapt to ever-changing environments. Despite this potential, most of the robot learning systems today are deployed…

Machine Learning · Computer Science 2020-08-03 Ryan Julian , Benjamin Swanson , Gaurav S. Sukhatme , Sergey Levine , Chelsea Finn , Karol Hausman