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Vision-language models (VLMs) pretrained on large-scale multimodal datasets encode rich visual and linguistic knowledge, making them a strong foundation for robotics. Rather than training robotic policies from scratch, recent approaches…

With extensive pre-trained knowledge and high-level general capabilities, large language models (LLMs) emerge as a promising avenue to augment reinforcement learning (RL) in aspects such as multi-task learning, sample efficiency, and…

Machine Learning · Computer Science 2024-11-21 Yuji Cao , Huan Zhao , Yuheng Cheng , Ting Shu , Yue Chen , Guolong Liu , Gaoqi Liang , Junhua Zhao , Jinyue Yan , Yun Li

Reinforcement learning (RL) is increasingly used to post-train medical Vision-Language Models (VLMs), yet it remains unclear whether RL improves medical visual reasoning or mainly sharpens behaviors already induced by supervised fine-tuning…

Computer Vision and Pattern Recognition · Computer Science 2026-03-03 Ahmadreza Jeddi , Kimia Shaban , Negin Baghbanzadeh , Natasha Sharan , Abhishek Moturu , Elham Dolatabadi , Babak Taati

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…

Existing efforts in building Graphical User Interface (GUI) agents largely rely on the training paradigm of supervised fine-tuning on Large Vision-Language Models (LVLMs). However, this approach not only demands extensive amounts of…

Computer Vision and Pattern Recognition · Computer Science 2025-10-02 Run Luo , Lu Wang , Wanwei He , Longze Chen , Jiaming Li , Xiaobo Xia

One promise that Vision-Language-Action (VLA) models hold over traditional imitation learning for robotics is to leverage the broad generalization capabilities of large Vision-Language Models (VLMs) to produce versatile, "generalist" robot…

Robotics · Computer Science 2025-06-12 Irving Fang , Juexiao Zhang , Shengbang Tong , Chen Feng

Reinforcement learning (RL) enhanced large language models (LLMs), particularly exemplified by DeepSeek-R1, have exhibited outstanding performance. Despite the effectiveness in improving LLM capabilities, its implementation remains highly…

Computation and Language · Computer Science 2025-02-25 Shuhe Wang , Shengyu Zhang , Jie Zhang , Runyi Hu , Xiaoya Li , Tianwei Zhang , Jiwei Li , Fei Wu , Guoyin Wang , Eduard Hovy

Vision-language models (VLMs) have shown remarkable abilities by integrating large language models with visual inputs. However, they often fail to utilize visual evidence adequately, either depending on linguistic priors in vision-centric…

Computer Vision and Pattern Recognition · Computer Science 2026-05-19 Xiaojun Guo , Runyu Zhou , Yifei Wang , Qi Zhang , Chenheng Zhang , Stefanie Jegelka , Xiaohan Wang , Jiajun Chai , Guojun Yin , Wei Lin , Yisen Wang

Vision-language models (VLMs) have tremendous potential for grounding language, and thus enabling language-conditioned agents (LCAs) to perform diverse tasks specified with text. This has motivated the study of LCAs based on reinforcement…

Artificial Intelligence · Computer Science 2024-11-27 Theo Cachet , Christopher R. Dance , Olivier Sigaud

Vision-language-action (VLA) models have advanced robot manipulation through large-scale pretraining, but real-world deployment remains challenging due to partial observability and delayed feedback. Reinforcement learning addresses this via…

Improving embodied reasoning in multimodal-large-language models (MLLMs) is essential for building vision-language-action models (VLAs) on top of them to readily translate multimodal understanding into low-level actions. Accordingly, recent…

Artificial Intelligence · Computer Science 2026-03-24 Dongyoung Kim , Sumin Park , Woomin Song , Seungku Kim , Taeyoung Kim , Huiwon Jang , Jinwoo Shin , Jaehyung Kim , Younggyo Seo

Recent advancements in Vision-Language-Action (VLA) models have leveraged pre-trained Vision-Language Models (VLMs) to improve the generalization capabilities. VLMs, typically pre-trained on vision-language understanding tasks, provide rich…

Computer Vision and Pattern Recognition · Computer Science 2025-06-27 Jianke Zhang , Yanjiang Guo , Yucheng Hu , Xiaoyu Chen , Xiang Zhu , Jianyu Chen

Reinforcement Learning (RL) is a rapidly growing area of machine learning that finds its application in a broad range of domains, from finance and healthcare to robotics and gaming. Compared to other machine learning techniques, RL agents…

Artificial Intelligence · Computer Science 2024-11-14 Geetansh Kalra , Divye Singh , Justin Jose

Vision-Language Models (VLMs) have shown strong performance in tasks like visual question answering and multimodal text generation, but their effectiveness in scientific domains such as materials science remains limited. While some machine…

Machine Learning · Computer Science 2025-11-11 An Vuong , Minh-Hao Van , Prateek Verma , Chen Zhao , Xintao Wu

Vision-language-action (VLA) models are effective robot action executors, but they remain limited on long-horizon tasks due to the dual burden of extended closed-loop planning and diverse physical operations. We therefore propose…

Robotics · Computer Science 2026-05-14 Zixing Lei , Changxing Liu , Yichen Xiong , Minhao Xiong , Yuanzhuo Ding , Zhipeng Zhang , Weixin Li , Siheng Chen

Vision-Language-Action (VLA) models have emerged as a generalist robotic agent. However, existing VLAs are hindered by excessive parameter scales, prohibitive pre-training requirements, and limited applicability to diverse embodiments. To…

Vision-Language Navigation (VLN) is a core challenge in embodied AI, requiring agents to navigate real-world environments using natural language instructions. Current language model-based navigation systems operate on discrete topological…

Computer Vision and Pattern Recognition · Computer Science 2025-06-26 Zhangyang Qi , Zhixiong Zhang , Yizhou Yu , Jiaqi Wang , Hengshuang Zhao

Vision-Language-Action (VLA) models have recently shown impressive generalization and language-guided manipulation capabilities. However, their performance degrades on tasks requiring precise spatial reasoning due to limited spatial…

Computer Vision and Pattern Recognition · Computer Science 2025-10-16 Tianyuan Yuan , Yicheng Liu , Chenhao Lu , Zhuoguang Chen , Tao Jiang , Hang Zhao

Vision-language-action (VLA) models typically rely on large-scale real-world videos, whereas simulated data, despite being inexpensive and highly parallelizable to collect, often suffers from a substantial visual domain gap and limited…

Computer Vision and Pattern Recognition · Computer Science 2026-05-05 Chenyu Hui , Xiaodi Huang , Siyu Xu , Yunke Wang , Shan You , Fei Wang , Tao Huang , Chang Xu

Offline reinforcement learning (RL) allows for the training of competent agents from offline datasets without any interaction with the environment. Online finetuning of such offline models can further improve performance. But how should we…

Machine Learning · Computer Science 2023-03-31 Yicheng Luo , Jackie Kay , Edward Grefenstette , Marc Peter Deisenroth