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Vision-Language-Action (VLA) models enable robots to understand and perform complex tasks from multimodal input. Although recent work explores using reinforcement learning (RL) to automate the laborious data collection process in scaling…

Machine Learning · Computer Science 2026-01-30 Kang Chen , Zhihao Liu , Tonghe Zhang , Zhen Guo , Si Xu , Hao Lin , Hongzhi Zang , Xiang Li , Quanlu Zhang , Zhaofei Yu , Guoliang Fan , Tiejun Huang , Yu Wang , Chao Yu

In standard Reinforcement Learning (RL) settings, the interaction between the agent and the environment is typically modeled as a Markov Decision Process (MDP), which assumes that the agent observes the system state instantaneously, selects…

Machine Learning · Computer Science 2025-06-18 John Wikman , Alexandre Proutiere , David Broman

Vision-language-action (VLA) models finetuned from vision-language models (VLMs) hold the promise of leveraging rich pretrained representations to build generalist robots across diverse tasks and environments. However, direct fine-tuning on…

Robotics · Computer Science 2025-09-18 Shresth Grover , Akshay Gopalkrishnan , Bo Ai , Henrik I. Christensen , Hao Su , Xuanlin Li

Local-remote systems allow robots to execute complex tasks in hazardous environments such as space and nuclear power stations. However, establishing accurate positional mapping between local and remote devices can be difficult due to time…

Artificial Intelligence · Computer Science 2023-09-21 Luc McCutcheon , Saber Fallah

Integrating visual-language instructions into visuomotor policies is gaining momentum in robot learning for enhancing open-world generalization. Despite promising advances, existing approaches face two challenges: limited language…

Robotics · Computer Science 2025-10-24 Wenhui Huang , Changhe Chen , Han Qi , Chen Lv , Yilun Du , Heng Yang

Recent vision-language-action (VLA) models have significantly advanced robotic manipulation by unifying perception, reasoning, and control. To achieve such integration, recent studies adopt a predictive paradigm that models future visual…

Computer Vision and Pattern Recognition · Computer Science 2026-03-10 Yijie Zhu , Jie He , Rui Shao , Kaishen Yuan , Tao Tan , Xiaochen Yuan , Zitong Yu

Pruning is a typical acceleration technique for compute-bound models by removing computation on unimportant values. Recently, it has been applied to accelerate Vision-Language-Action (VLA) model inference. However, existing acceleration…

Computer Vision and Pattern Recognition · Computer Science 2026-05-26 Hanzhen Wang , Jiaming Xu , Yushun Xiang , Jiayi Pan , Yongkang Zhou , Yong-Lu Li , Guohao Dai

Vision-Language-Action (VLA) models have demonstrated significant potential in the field of embodied intelligence, enabling agents to follow human instructions to complete complex tasks in physical environments. Existing embodied agents are…

Robotics · Computer Science 2025-05-27 Junyang Shu , Zhiwei Lin , Yongtao Wang

Online reinforcement learning in complex tasks is time-consuming, as massive interaction steps are needed to learn the optimal Q-function.Vision-language action (VLA) policies represent a promising direction for solving diverse tasks;…

Machine Learning · Computer Science 2025-09-26 Xiefeng Wu , Jing Zhao , Shu Zhang , Mingyu Hu

Vision-language models (VLMs) exhibit remarkable zero-shot capabilities but struggle with distribution shifts in downstream tasks when labeled data is unavailable, which has motivated the development of Test-Time Adaptation (TTA) to improve…

Computer Vision and Pattern Recognition · Computer Science 2025-08-14 Yiwen Liang , Hui Chen , Yizhe Xiong , Zihan Zhou , Mengyao Lyu , Zijia Lin , Shuaicheng Niu , Sicheng Zhao , Jungong Han , Guiguang Ding

Preference-based reinforcement learning (RL) offers a promising approach for aligning policies with human intent but is often constrained by the high cost of human feedback. In this work, we introduce PrefVLM, a framework that integrates…

Machine Learning · Computer Science 2025-02-04 Udita Ghosh , Dripta S. Raychaudhuri , Jiachen Li , Konstantinos Karydis , Amit Roy-Chowdhury

Reinforcement learning (RL) enables high-frequency, closed-loop control for robotic manipulation, but scaling to long-horizon tasks with sparse or imperfect rewards remains difficult due to inefficient exploration and poor credit…

Machine Learning · Computer Science 2026-04-16 Angelo Moroncelli , Roberto Zanetti , Marco Maccarini , Loris Roveda

Vision-language foundation models (VLMs), such as CLIP, exhibit remarkable performance across a wide range of tasks. However, deploying these models can be unreliable when significant distribution gaps exist between training and test data,…

Machine Learning · Computer Science 2025-09-29 Zongbo Han , Jialong Yang , Guangyu Wang , Junfan Li , Qianli Xu , Mike Zheng Shou , Changqing Zhang

Large-scale image-text contrastive pre-training models, such as CLIP, have been demonstrated to effectively learn high-quality multimodal representations. However, there is limited research on learning video-text representations for general…

Computer Vision and Pattern Recognition · Computer Science 2023-05-23 Xingjian He , Sihan Chen , Fan Ma , Zhicheng Huang , Xiaojie Jin , Zikang Liu , Dongmei Fu , Yi Yang , Jing Liu , Jiashi Feng

Vision language action (VLA) models enable generalist robotic agents but often exhibit language ignorance, relying on visual shortcuts and remaining insensitive to instruction changes. We present Prospective Grounding and Alignment VLA…

Robotics · Computer Science 2026-04-14 Nastaran Darabi , Amit Ranjan Trivedi

Vision-and-language navigation (VLN) asks an agent to follow a given language instruction to navigate through a real 3D environment. Despite significant advances, conventional VLN agents are trained typically under disturbance-free…

Computer Vision and Pattern Recognition · Computer Science 2024-03-12 Bingqian Lin , Yanxin Long , Yi Zhu , Fengda Zhu , Xiaodan Liang , Qixiang Ye , Liang Lin

Recently, Vision-Language-Action (VLA) models have demonstrated strong performance on a range of robotic tasks. These models rely on multimodal inputs, with language instructions playing a crucial role -- not only in predicting actions, but…

Artificial Intelligence · Computer Science 2025-08-25 Wen-Han Hsieh , Elvis Hsieh , Dantong Niu , Trevor Darrell , Roei Herzig , David M. Chan

Autoregressive (AR) decoding is a major latency bottleneck for large language models. Speculative decoding (SD) accelerates AR by letting a drafter propose multi-token blocks that a verifier accepts or rejects. However, many SD systems…

Machine Learning · Computer Science 2025-10-08 Shrenik Bhansali , Larry Heck

Vision-Language-Action (VLA) models have gained popularity for learning robotic manipulation tasks that follow language instructions. State-of-the-art VLAs, such as OpenVLA and $\pi_{0}$, were trained on large-scale, manually labeled action…

Robotics · Computer Science 2025-09-24 Bahey Tharwat , Yara Nasser , Ali Abouzeid , Ian Reid

We propose a new Verbal Reinforcement Learning (VRL) framework for interpretable task-level planning in mobile robotic systems operating under execution uncertainty. The framework follows a closed-loop architecture that enables iterative…