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Recent work has begun to equip vision-language-action (VLA) policies with explicit intermediate reasoning. In embodied control, however, textual chain-of-thought is a poor fit: irrelevant or weakly textual information can interfere with…

Computer Vision and Pattern Recognition · Computer Science 2026-05-29 Mingjian Gao , Wenqiao Zhang , Yuqian Yuan , Yang Dai , Binhe Yu , Zheqi Lv , Haoyu Zheng , Jiaqi Zhu , Zhiqi Ge , Zixuan Wan , Siliang Tang , Yueting Zhuang

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

Vision-language-action models (VLAs) have shown potential in leveraging pretrained vision-language models and diverse robot demonstrations for learning generalizable sensorimotor control. While this paradigm effectively utilizes large-scale…

Computer Vision and Pattern Recognition · Computer Science 2025-03-31 Qingqing Zhao , Yao Lu , Moo Jin Kim , Zipeng Fu , Zhuoyang Zhang , Yecheng Wu , Zhaoshuo Li , Qianli Ma , Song Han , Chelsea Finn , Ankur Handa , Ming-Yu Liu , Donglai Xiang , Gordon Wetzstein , Tsung-Yi Lin

Visual language models (VLMs) have made significant advances in accuracy in recent years. However, their efficiency has received much less attention. This paper introduces NVILA, a family of open VLMs designed to jointly optimize efficiency…

Large-scale vision language (VL) models use Transformers to perform cross-modal interactions between the input text and image. These cross-modal interactions are computationally expensive and memory-intensive due to the quadratic complexity…

Computer Vision and Pattern Recognition · Computer Science 2023-05-30 Qingqing Cao , Bhargavi Paranjape , Hannaneh Hajishirzi

Vision-Language Models (VLMs) have demonstrated strong capability in a wide range of tasks such as visual recognition, document parsing, and visual grounding. Nevertheless, recent work shows that while VLMs often manage to capture the…

Computer Vision and Pattern Recognition · Computer Science 2026-04-20 Chengxin Liu , Wonseok Choi , Chenshuang Zhang , Tae-Hyun Oh

Pre-trained Vision-Language-Action (VLA) models have achieved remarkable success in improving robustness and generalization for end-to-end robotic manipulation. However, these models struggle with long-horizon tasks due to their lack of…

Robotics · Computer Science 2025-11-13 Runhao Li , Wenkai Guo , Zhenyu Wu , Changyuan Wang , Haoyuan Deng , Zhenyu Weng , Yap-Peng Tan , Ziwei Wang

Vision-Language Models (VLMs) have become central to autonomous driving systems, yet their deployment is severely bottlenecked by the massive computational overhead of multi-view camera and multi-frame video input. Existing token pruning…

Computer Vision and Pattern Recognition · Computer Science 2026-04-22 Lin Sha , Haiyun Guo , Tao Wang , Cong Zhang , Min Huang , Jinqiao Wang , Qinghai Miao

Prevailing Vision-Language-Action Models (VLAs) for robotic manipulation are built upon vision-language backbones pretrained on large-scale, but disconnected static web data. As a result, despite improved semantic generalization, the policy…

Robotics · Computer Science 2025-12-22 Jonas Pai , Liam Achenbach , Victoriano Montesinos , Benedek Forrai , Oier Mees , Elvis Nava

In an enterprise Virtual Assistant (VA) system, intent classification is the crucial component that determines how a user input is handled based on what the user wants. The VA system is expected to be a cost-efficient SaaS service with low…

Computation and Language · Computer Science 2024-08-22 Haode Qi , Cheng Qian , Jian Ni , Pratyush Singh , Reza Fazeli , Gengyu Wang , Zhongzheng Shu , Eric Wayne , Juergen Bross

Vision-Language-Action (VLA) models, which integrate pretrained large Vision-Language Models (VLM) into their policy backbone, are gaining significant attention for their promising generalization capabilities. This paper revisits a…

Computer Vision and Pattern Recognition · Computer Science 2026-01-08 Jianke Zhang , Xiaoyu Chen , Qiuyue Wang , Mingsheng Li , Yanjiang Guo , Yucheng Hu , Jiajun Zhang , Shuai Bai , Junyang Lin , Jianyu Chen

Vision-Language Large Models (VLMs) recently become primary backbone of AI, due to the impressive performance. However, their expensive computation costs, i.e., throughput and delay, impede potentials in the real-world scenarios. To achieve…

Computer Vision and Pattern Recognition · Computer Science 2024-07-17 Chen Ju , Haicheng Wang , Haozhe Cheng , Xu Chen , Zhonghua Zhai , Weilin Huang , Jinsong Lan , Shuai Xiao , Bo Zheng

Vision-Language-Action (VLA) models commonly adapt pretrained Vision-Language Models (VLMs) to robot control by mapping visual observations and language instructions to continuous actions. Existing approaches typically take an…

Computer Vision and Pattern Recognition · Computer Science 2026-05-26 Xuan Wang , Yinan Wu , Haoran Duan , Jungong Han

Visual tokens dominate inference cost in vision-language models (VLMs), yet many carry redundant information. Existing pruning methods alleviate this but typically rely on attention magnitude or similarity scores. We reformulate visual…

Computer Vision and Pattern Recognition · Computer Science 2026-03-10 Landi He , Xiaoyu Yang , Lijian Xu

Multimodal Large Language Models (MLLMs) suffer from substantial computational overhead due to the high redundancy in visual token sequences. Existing approaches typically address this issue using single-layer Vision Transformer (ViT)…

Computer Vision and Pattern Recognition · Computer Science 2026-04-15 Yunkai Dang , Yizhu Jiang , Yifan Jiang , Qi Fan , Yinghuan Shi , Wenbin Li , Yang Gao

Efficient inference in Large Vision-Language Models is constrained by the high cost of processing thousands of visual tokens, yet it remains unclear which tokens and computations can be safely removed. While attention scores are commonly…

Computer Vision and Pattern Recognition · Computer Science 2026-02-03 Samyak Jha , Junho Kim

Visual token pruning is a widely used strategy for efficient inference in multimodal large language models (MLLMs), but existing work mainly evaluates it with task accuracy. In this paper, we study how visual token pruning affects model…

Computer Vision and Pattern Recognition · Computer Science 2026-04-15 Kaizhen Tan

Vision-Language-Action models (VLAs) achieve strong performance in general robotic manipulation tasks by scaling imitation learning. However, existing VLAs are limited to predicting short-sighted next-action, which struggle with…

Robotics · Computer Science 2026-03-03 Wenkai Guo , Guanxing Lu , Haoyuan Deng , Zhenyu Wu , Yansong Tang , Ziwei Wang

Token pruning is essential for enhancing the computational efficiency of vision-language models (VLMs), particularly for video-based tasks where temporal redundancy is prevalent. Prior approaches typically prune tokens either (1) within the…

Computer Vision and Pattern Recognition · Computer Science 2026-03-19 Jianrui Zhang , Yue Yang , Rohun Tripathi , Winson Han , Ranjay Krishna , Christopher Clark , Yong Jae Lee , Sangho Lee

Recent advancements in Vision-Language Models (VLMs) enable large language models (LLMs) to process high-resolution images, significantly improving real-world multimodal understanding. However, this capability introduces a large number of…

Computer Vision and Pattern Recognition · Computer Science 2026-05-12 Yuna Lee , Kyoungho Min , Yulhwa Kim