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Vision-Language-Action (VLA) models have become a cornerstone in robotic policy learning, leveraging large-scale multimodal data for robust and scalable control. However, existing VLA frameworks primarily address short-horizon tasks, and…

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

In recent years, Vision-Language-Action (VLA) models have become a vital research direction in robotics due to their impressive multimodal understanding and generalization capabilities. Despite the progress, their practical deployment is…

Robotics · Computer Science 2025-06-17 Wenxuan Song , Jiayi Chen , Pengxiang Ding , Yuxin Huang , Han Zhao , Donglin Wang , Haoang Li

Tactile sensing is essential for robots to achieve human-like gentle manipulation. However, existing Vision-Language-Action (VLA) models struggle to exploit tactile feedback for gentle manipulation due to scarce aligned…

Robotics · Computer Science 2026-05-28 Qiwei Wu , Rui Zhang , Xin Xiang , Tao Li , Weihua Zhang , Junjie Lai , Renjing Xu

Vision Language Action (VLA) models close the perception action loop by translating multimodal instructions into executable behaviors, but this very capability magnifies safety risks: jailbreaks that merely yield toxic text in LLMs can…

Robotics · Computer Science 2026-03-24 Siqi Wen , Shu Yang , Shaopeng Fu , Jingfeng Zhang , Lijie Hu , Di Wang

Vision-language-action models (VLAs) have become increasingly popular in robot manipulation for their end-to-end design and remarkable performance. However, existing VLAs rely heavily on vision-language models (VLMs) that only support…

Robotics · Computer Science 2025-02-24 Wei Zhao , Pengxiang Ding , Min Zhang , Zhefei Gong , Shuanghao Bai , Han Zhao , Donglin Wang

Vision-Language-Action (VLA) models have significantly advanced the capabilities of robotic agents in executing diverse tasks; however, they still face challenges in contact-rich manipulation scenarios that require precise physical…

Robotics · Computer Science 2026-05-19 Xiaoqi Li , Muhe Cai , Jiadong Xu , Juan Zhu , Hongwei Fan , Yan Shen , Guangrui Ren , Hao Dong

Temporal modeling is crucial for various video learning tasks. Most recent approaches employ either factorized (2D+1D) or joint (3D) spatial-temporal operations to extract temporal contexts from the input frames. While the former is more…

Computer Vision and Pattern Recognition · Computer Science 2023-01-03 Yizhou Zhao , Zhenyang Li , Xun Guo , Yan Lu

Autonomous drones capable of interpreting and executing high-level language instructions in unstructured environments remain a long-standing goal. Yet existing approaches are constrained by their dependence on hand-crafted skills, extensive…

Robotics · Computer Science 2026-05-19 Qianzhong Chen , Naixiang Gao , Suning Huang , JunEn Low , Timothy Chen , Jiankai Sun , Mac Schwager

Vision-language-action (VLA) models remain constrained by the scarcity of action-labeled robot data, whereas action-free videos provide abundant evidence of how the physical world changes. Latent action models offer a promising way to…

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

Ambiguities are inevitable in human-robot interaction, especially when a robot follows user instructions in a large, shared space. For example, if a user asks the robot to find an object in a home environment with underspecified…

Robotics · Computer Science 2025-04-03 Fethiye Irmak Dogan , Maithili Patel , Weiyu Liu , Iolanda Leite , Sonia Chernova

The long-standing vision of general-purpose robots hinges on their ability to understand and act upon natural language instructions. Vision-Language-Action (VLA) models have made remarkable progress toward this goal, yet their generated…

Robotics · Computer Science 2026-02-19 Jacky Kwok , Xilun Zhang , Mengdi Xu , Yuejiang Liu , Azalia Mirhoseini , Chelsea Finn , Marco Pavone

Existing temporal action detection (TAD) methods rely on generating an overwhelmingly large number of proposals per video. This leads to complex model designs due to proposal generation and/or per-proposal action instance evaluation and the…

Computer Vision and Pattern Recognition · Computer Science 2022-08-22 Sauradip Nag , Xiatian Zhu , Yi-Zhe Song , Tao Xiang

Vision-Language-Action (VLA) models enable general-purpose robotic policies by mapping visual observations and language instructions to low-level actions, but they often lack reliable introspection. A common practice is to compute a…

Robotics · Computer Science 2026-03-20 Yanchuan Tang , Taowen Wang , Yuefei Chen , Boxuan Zhang , Qiang Guan , Ruixiang Tang

Vision-and-Language Navigation (VLN) tasks agents with locating specific objects in unseen environments using natural language instructions and visual cues. Many existing VLN approaches typically follow an 'observe-and-reason' schema, that…

Robotics · Computer Science 2026-02-04 Yanjia Huang , Mingyang Wu , Renjie Li , Zhengzhong Tu

Vision--Language--Action (VLA) models bridge multimodal reasoning with physical control, but adapting them to new tasks with scarce demonstrations remains unreliable. While fine-tuned VLA policies often produce semantically plausible…

Artificial Intelligence · Computer Science 2026-05-25 Changhua Xu , En Yu , Junyu Xuan , Jie Lu

Vision-Language-Action (VLA) models have emerged as a powerful paradigm in Embodied AI. However, the significant computational overhead of processing redundant visual tokens remains a critical bottleneck for real-time robotic deployment.…

Robotics · Computer Science 2025-11-25 Juntao Gao , Feiyang Ye , Jing Zhang , Wenjing Qian

Research on Vision Language Action (VLA) models has been increasing rapidly in recent years. Although some of them focus on detecting, preventing, and recovering from task failures, they usually don't deal with adapting to robot's physical…

Robotics · Computer Science 2026-05-18 Hüseyin Arslan , Özgür Erkent

Despite the recent advancements of vision-language-action (VLA) models on a variety of robotics tasks, they suffer from critical issues such as poor generalizability to unseen tasks, due to their reliance on behavior cloning exclusively…

Robotics · Computer Science 2025-02-05 Zijian Zhang , Kaiyuan Zheng , Zhaorun Chen , Joel Jang , Yi Li , Siwei Han , Chaoqi Wang , Mingyu Ding , Dieter Fox , Huaxiu Yao