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Vision-Language-Action (VLA) models have shown strong potential for general-purpose robotic manipulation by leveraging large pretrained vision-language backbones. However, most existing VLAs rely primarily on 2D visual representations,…

Robotics · Computer Science 2026-05-21 Shizhe Chen , Paul Pacaud , Cordelia Schmid

Large foundation models enable powerful reasoning for autonomous systems, but mapping semantic intent to reliable real-time control remains challenging. Existing approaches either (i) let Large Language Models (LLMs) generate trajectories…

Robotics · Computer Science 2026-04-03 Jiayi Chen , Shuai Wang , Guangxu Zhu , Chengzhong Xu

This study investigates the spatial reasoning capabilities of vision-language models (VLMs) through Chain-of-Thought (CoT) prompting and reinforcement learning. We begin by evaluating the impact of different prompting strategies and find…

Computer Vision and Pattern Recognition · Computer Science 2025-07-21 Binbin Ji , Siddharth Agrawal , Qiance Tang , Yvonne Wu

Large Language Models (LLMs) often struggle with computational efficiency and error propagation in multi-step reasoning tasks. While recent advancements on prompting and post-training have enabled LLMs to perform step-wise reasoning, they…

Artificial Intelligence · Computer Science 2026-05-08 Yuan Sui , Yufei He , Tri Cao , Simeng Han , Yulin Chen , Bryan Hooi

Vision-Language-Action (VLA) models have recently emerged as a powerful paradigm for robotic manipulation. Despite substantial progress enabled by large-scale pretraining and supervised fine-tuning (SFT), these models face two fundamental…

Vision-language tracking has received increasing attention in recent years, as textual information can effectively address the inflexibility and inaccuracy associated with specifying the target object to be tracked. Existing works either…

Computer Vision and Pattern Recognition · Computer Science 2025-08-08 Xiao Wang , Liye Jin , Xufeng Lou , Shiao Wang , Lan Chen , Bo Jiang , Zhipeng Zhang

The dominant paradigm of monolithic scaling in Vision-Language Models (VLMs) is failing for understanding and reasoning in documents, yielding diminishing returns as it struggles with the inherent need of this domain for document-based…

Computer Vision and Pattern Recognition · Computer Science 2025-11-17 Xinlei Yu , Chengming Xu , Zhangquan Chen , Yudong Zhang , Shilin Lu , Cheng Yang , Jiangning Zhang , Shuicheng Yan , Xiaobin Hu

Chain-of-Thought (CoT) prompting has achieved remarkable success in unlocking the reasoning capabilities of Large Language Models (LLMs). Although CoT prompting enhances reasoning, its verbosity imposes substantial computational overhead.…

Computation and Language · Computer Science 2026-04-21 Yifan Wang , Shiyu Li , Peiming Li , Xiaochen Yang , Yang Tang , Zheng Wei

Chain-of-Thought (CoT) prompting has proven highly effective for enhancing complex reasoning in Large Language Models (LLMs) and Multimodal Large Language Models (MLLMs). Yet, it struggles in complex spatial reasoning tasks. Nonetheless,…

Computation and Language · Computer Science 2025-01-14 Chengzu Li , Wenshan Wu , Huanyu Zhang , Yan Xia , Shaoguang Mao , Li Dong , Ivan Vulić , Furu Wei

Vision-Language-Action (VLA) models improve action generation by conditioning policies on rich vision-language information. However, current auto-regressive policies are constrained by three bottlenecks: (1) architectural bias drives models…

Robotics · Computer Science 2026-03-31 Yichi Zhang , Weihao Yuan , Yizhuo Zhang , Xidong Zhang , Jia Wan

Vision-Language-Action (VLA) models have achieved remarkable progress in robotic manipulation by mapping multimodal observations and instructions directly to actions. However, they typically mimic expert trajectories without predictive…

Vision-Language-Action (VLA) models have shown remarkable progress in embodied tasks recently, but most methods process visual observations independently at each timestep. This history-agnostic design treats robot manipulation as a Markov…

Machine Learning · Computer Science 2026-04-13 Lei Xiao , Jifeng Li , Juntao Gao , Feiyang Ye , Yan Jin , Jingjing Qian , Jing Zhang , Yong Wu , Xiaoyuan Yu

Generalized policy and execution efficiency constitute the two critical challenges in robotic manipulation. While recent foundation policies benefit from the common-sense reasoning capabilities of internet-scale pretrained vision-language…

Vision-language-action (VLA) models can learn to perform diverse manipulation skills "out of the box," but achieving the precision and speed that real-world tasks demand requires further fine-tuning -- for example, via reinforcement…

Machine Learning · Computer Science 2026-05-04 Charles Xu , Jost Tobias Springenberg , Michael Equi , Ali Amin , Adnan Esmail , Sergey Levine , Liyiming Ke

Recent studies on Vision-Language-Action (VLA) models have shifted from the end-to-end action-generation paradigm toward a pipeline involving task planning followed by action generation, demonstrating improved performance on various…

Computer Vision and Pattern Recognition · Computer Science 2025-06-24 Chongkai Gao , Zixuan Liu , Zhenghao Chi , Junshan Huang , Xin Fei , Yiwen Hou , Yuxuan Zhang , Yudi Lin , Zhirui Fang , Zeyu Jiang , Lin Shao

Event cameras have recently been shown beneficial for practical vision tasks, such as action recognition, thanks to their high temporal resolution, power efficiency, and reduced privacy concerns. However, current research is hindered by 1)…

Computer Vision and Pattern Recognition · Computer Science 2024-03-20 Jiazhou Zhou , Xu Zheng , Yuanhuiyi Lyu , Lin Wang

Vision-and-Language Navigation (VLN) requires agents to accurately perceive complex visual environments and reason over navigation instructions and histories. However, existing methods passively process redundant visual inputs and treat all…

Robotics · Computer Science 2026-03-17 Wei Xue , Mingcheng Li , Xuecheng Wu , Jingqun Tang , Dingkang Yang , Lihua Zhang

Vision-Language-Action (VLA) models have shown strong performance in robotic manipulation, but often struggle in long-horizon or out-of-distribution scenarios due to the lack of explicit mechanisms for multimodal reasoning and anticipating…

Vision-Language-Action (VLA) models integrate visual perception, language understanding, and action decision-making for cross-modal semantic alignment, exhibiting broad application potential. However, the joint processing of…

Computer Vision and Pattern Recognition · Computer Science 2026-04-08 Chuhang Liu , Yayun He , Zuheng Kang , Xiaoyang Qu , Jianzong Wang

Latent Action Models (LAMs) have emerged as an effective paradigm for handling heterogeneous datasets during Vision-Language-Action (VLA) model pretraining, offering a unified action space across embodiments. However, existing LAMs often…

Robotics · Computer Science 2026-05-14 Qiwei Li , Xicheng Gong , Xinghang Li , Peiyan Li , Quanyun Zhou , Hangjun Ye , Jiahuan Zhou , Yadong Mu