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Vision-language pre-training has significantly elevated performance across a wide range of image-language applications. Yet, the pre-training process for video-related tasks demands exceptionally large computational and data resources,…

Computer Vision and Pattern Recognition · Computer Science 2024-04-30 Lin Xu , Yilin Zhao , Daquan Zhou , Zhijie Lin , See Kiong Ng , Jiashi Feng

Vision-language-action (VLA) models provide a promising paradigm for scalable robotic manipulation, yet their reliance on success-only behavioral cloning leaves them brittle; lacking corrective training signals, minor execution errors…

Vision-Language-Action (VLA) models show promise in embodied reasoning, yet remain far from true generalists-they often require task-specific fine-tuning, incur high compute costs, and generalize poorly to unseen tasks. We propose MetaVLA,…

Artificial Intelligence · Computer Science 2026-01-29 Chen Li , Zhantao Yang , Han Zhang , Fangyi Chen , Chenchen Zhu , Anudeepsekhar Bolimera , Marios Savvides

Vision-Language-Action (VLA) models have demonstrated remarkable capabilities and generalization in embodied manipulation. However, their decision-making relies on a fast, instinctive process that lacks deliberation. This strategy often…

Robotics · Computer Science 2026-05-29 Wenhao Li , Xiu Su , Yichao Cao , Hongyan Xu , Xiaobo Xia , Shan You , Yi Chen , Chang Xu

It is infeasible to encompass all possible disturbances within the training dataset. This raises a critical question regarding the robustness of Vision-Language-Action (VLA) models when encountering unseen real-world visual disturbances,…

Computer Vision and Pattern Recognition · Computer Science 2026-05-19 Yiyang Fu , Chubin Zhang , Shukai Gong , Yufan Deng , Kaiwei Sun , Qiyang Min , Qibin Hou , Yansong Tang , Jianan Wang , Daquan Zhou

Large language models (LLMs) have demonstrated that large-scale pretraining enables systems to adapt rapidly to new problems with little supervision in the language domain. This success, however, has not translated as effectively to the…

Computer Vision and Pattern Recognition · Computer Science 2025-11-04 Pablo Acuaviva , Aram Davtyan , Mariam Hassan , Sebastian Stapf , Ahmad Rahimi , Alexandre Alahi , Paolo Favaro

Vision-Language-Action (VLA) models, trained via flow-matching or diffusion objectives, excel at learning complex behaviors from large-scale, multi-modal datasets (e.g., human teleoperation, scripted policies). However, since VLAs…

Robotics · Computer Science 2025-12-03 Siyuan Yang , Yang Zhang , Haoran He , Ling Pan , Xiu Li , Chenjia Bai , Xuelong Li

Vision-Language-Action (VLA) models aim to unify perception, language understanding, and action generation, offering strong cross-task and cross-scene generalization with broad impact on embodied AI. However, current VLA models often lack…

Computer Vision and Pattern Recognition · Computer Science 2025-10-03 Angen Ye , Zeyu Zhang , Boyuan Wang , Xiaofeng Wang , Dapeng Zhang , Zheng Zhu

Vision-Language-Action (VLA) models adapt large vision-language backbones to map images and instructions into robot actions. However, prevailing VLAs either generate actions auto-regressively in a fixed left-to-right order or attach…

Computer Vision and Pattern Recognition · Computer Science 2025-12-23 Zhixuan Liang , Yizhuo Li , Tianshuo Yang , Chengyue Wu , Sitong Mao , Tian Nian , Liuao Pei , Shunbo Zhou , Xiaokang Yang , Jiangmiao Pang , Yao Mu , Ping Luo

Recent work on activation and latent steering has demonstrated that modifying internal representations can effectively guide large language models (LLMs) toward improved reasoning and efficiency without additional training. However, most…

Machine Learning · Computer Science 2026-01-07 Tuc Nguyen , Thai Le

Recent advances in vision-language-action (VLA) models for robotics have highlighted the importance of reliable uncertainty quantification in sequential tasks. However, assessing and improving calibration in such settings remains mostly…

Robotics · Computer Science 2026-04-23 Shelly Francis-Meretzki , Mirco Mutti , Yaniv Romano , Aviv Tamar

Vision-Language-Action (VLA) models typically bridge the gap between perceptual and action spaces by pre-training a large-scale Vision-Language Model (VLM) on robotic data. While this approach greatly enhances performance, it also incurs…

LIBERO has emerged as a widely adopted benchmark for evaluating Vision-Language-Action (VLA) models; however, its current training and evaluation settings are problematic, often leading to inflated performance estimates and preventing fair…

Computer Vision and Pattern Recognition · Computer Science 2026-05-26 Xueyang Zhou , Yangming Xu , Guiyao Tie , Yongchao Chen , Guowen Zhang , Duanfeng Chu , Pan Zhou , Lichao Sun

Several studies have recently pointed that existing Visual Question Answering (VQA) models heavily suffer from the language prior problem, which refers to capturing superficial statistical correlations between the question type and the…

Computer Vision and Pattern Recognition · Computer Science 2022-07-26 Yudong Han , Liqiang Nie , Jianhua Yin , Jianlong Wu , Yan Yan

The pre-training and fine-tuning paradigm has contributed to a number of breakthroughs in Natural Language Processing (NLP). Instead of directly training on a downstream task, language models are first pre-trained on large datasets with…

Machine Learning · Computer Science 2023-08-01 Vithursan Thangarasa , Abhay Gupta , William Marshall , Tianda Li , Kevin Leong , Dennis DeCoste , Sean Lie , Shreyas Saxena

Recently, some studies have integrated Multimodal Large Language Models into robotic manipulation, constructing vision-language-action models (VLAs) to interpret multimodal information and predict SE(3) poses. While VLAs have shown…

Computer Vision and Pattern Recognition · Computer Science 2025-03-20 Chenxuan Li , Jiaming Liu , Guanqun Wang , Xiaoqi Li , Sixiang Chen , Liang Heng , Chuyan Xiong , Jiaxin Ge , Renrui Zhang , Kaichen Zhou , Shanghang Zhang

Vision-Language-Action (VLA) models show strong potential for general-purpose robotic manipulation, yet their closed-loop reliability often degrades under local deployment conditions. Existing evaluations typically treat test episodes as…

Robotics · Computer Science 2026-05-13 Jianchao Zhao , Huoren Yang , Yusong Hu , Yuyang Gao , Qiguan Ou , Cong Wan , SongLin Dong , Zhiheng Ma , Yihong Gong

Vision-Language-Action (VLA) models for autonomous driving often hit a performance plateau during Reinforcement Learning (RL) optimization. This stagnation arises from exploration capabilities constrained by previous Supervised Fine-Tuning…

Computer Vision and Pattern Recognition · Computer Science 2026-03-03 Yuechen Luo , Qimao Chen , Fang Li , Shaoqing Xu , Jaxin Liu , Ziying Song , Zhi-xin Yang , Fuxi Wen

Prompt tuning of Vision-Language Models (VLMs) such as CLIP, has demonstrated the ability to rapidly adapt to various downstream tasks. However, recent studies indicate that tuned VLMs may suffer from the problem of spurious correlations,…

Computer Vision and Pattern Recognition · Computer Science 2025-03-12 Chaoquan Jiang , Yunfan Yang , Rui Hu , Jitao Sang

Vision-language models (VLMs) can learn high-quality representations from a large-scale training dataset of image-text pairs. Prompt learning is a popular approach to fine-tuning VLM to adapt them to downstream tasks. Despite the satisfying…

Computer Vision and Pattern Recognition · Computer Science 2024-12-31 Zhifang Zhang , Yuwei Niu , Xin Liu , Beibei Li