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Recently, Vision Transformer (ViT) has achieved promising performance in image recognition and gradually serves as a powerful backbone in various vision tasks. To satisfy the sequential input of Transformer, the tail of ViT first splits…

Computer Vision and Pattern Recognition · Computer Science 2024-03-19 Yunke Wang , Bo Du , Wenyuan Wang , Chang Xu

As the capabilities of Vision-Language Models (VLMs) advance, they can process increasingly large inputs, which, unlike in LLMs, generates significant visual token redundancy and leads to prohibitive inference costs. While many methods aim…

Computer Vision and Pattern Recognition · Computer Science 2025-10-21 Pu Zhang , Yuwei Li , Xingyuan Xian , Guoming Tang

Instructed Visual Segmentation (IVS) tasks require segmenting objects in images or videos based on natural language instructions. While recent multimodal large language models (MLLMs) have achieved strong performance on IVS, their inference…

Computer Vision and Pattern Recognition · Computer Science 2025-08-19 Wenhui Zhu , Xiwen Chen , Zhipeng Wang , Shao Tang , Sayan Ghosh , Xuanzhao Dong , Rajat Koner , Yalin Wang

Vision transformers have achieved leading performance on various visual tasks yet still suffer from high computational complexity. The situation deteriorates in dense prediction tasks like semantic segmentation, as high-resolution inputs…

Computer Vision and Pattern Recognition · Computer Science 2023-09-29 Quan Tang , Bowen Zhang , Jiajun Liu , Fagui Liu , Yifan Liu

Deep neural networks (DNNs) have brought significant advancements in various applications in recent years, such as image recognition, speech recognition, and natural language processing. In particular, Vision Transformers (ViTs) have…

Machine Learning · Computer Science 2025-03-07 Leonid Berlyand , Theo Bourdais , Houman Owhadi , Yitzchak Shmalo

Recent progress in Multimodal Large Language Models(MLLMs) often use large image tokens to compensate the visual shortcoming of MLLMs, which not only exhibits obvious redundancy but also greatly exacerbates the already high computation.…

Computer Vision and Pattern Recognition · Computer Science 2024-12-30 Weihao Ye , Qiong Wu , Wenhao Lin , Yiyi Zhou

Contact-rich manipulation tasks are commonly found in modern manufacturing settings. However, manually designing a robot controller is considered hard for traditional control methods as the controller requires an effective combination of…

Robotics · Computer Science 2020-10-27 Yunlei Shi , Zhaopeng Chen , Hongxu Liu , Sebastian Riedel , Chunhui Gao , Qian Feng , Jun Deng , Jianwei Zhang

In this work, we study value function approximation in reinforcement learning (RL) problems with high dimensional state or action spaces via a generalized version of representation policy iteration (RPI). We consider the limitations of…

Machine Learning · Computer Science 2019-01-18 Sephora Madjiheurem , Laura Toni

Reinforcement learning (RL) is an effective technique for training decision-making agents through interactions with their environment. The advent of deep learning has been associated with highly notable successes with sequential decision…

Machine Learning · Computer Science 2021-05-25 Michael Tashman , John Hoffman , Jiayi Xie , Fengdan Ye , Atefeh Morsali , Lee Winikor , Rouzbeh Gerami

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

Vision Transformers (ViTs) excel in semantic segmentation but demand significant computation, posing challenges for deployment on resource-constrained devices. Existing token pruning methods often overlook fundamental visual data…

Computer Vision and Pattern Recognition · Computer Science 2025-04-28 Yuanbing Ouyang , Yizhuo Liang , Qingpeng Li , Xinfei Guo , Yiming Luo , Di Wu , Hao Wang , Yushan Pan

In this paper, we provide a novel algorithm for solving planning and learning problems of Markov decision processes. The proposed algorithm follows a policy iteration-type update by using a rank-one approximation of the transition…

Optimization and Control · Mathematics 2025-10-23 Arman Sharifi Kolarijani , Tolga Ok , Peyman Mohajerin Esfahani , Mohamad Amin Sharif Kolarijani

Due to its significant capability of modeling long-range dependencies, vision transformer (ViT) has achieved promising success in both holistic and occluded person re-identification (Re-ID) tasks. However, the inherent problems of…

Computer Vision and Pattern Recognition · Computer Science 2023-04-05 Junzhu Mao , Yazhou Yao , Zeren Sun , Xingguo Huang , Fumin Shen , Heng-Tao Shen

Vision tokens in multimodal large language models often dominate huge computational overhead due to their excessive length compared to linguistic modality. Abundant recent methods aim to solve this problem with token pruning, which first…

Computation and Language · Computer Science 2025-06-10 Zichen Wen , Yifeng Gao , Shaobo Wang , Junyuan Zhang , Qintong Zhang , Weijia Li , Conghui He , Linfeng Zhang

Vision-Language-Action (VLA) models have achieved significant breakthroughs by leveraging Large Vision Language Models (VLMs) to jointly interpret instructions and visual inputs. However, the substantial increase in visual tokens,…

Robotics · Computer Science 2026-02-25 Haosheng Li , Weixin Mao , Zihan Lan , Hongwei Xiong , Hongan Wang , Chenyang Si , Ziwei Liu , Xiaoming Deng , Hua Chen

Multi-task representation learning (MTRL) is an approach that learns shared latent representations across related tasks, facilitating collaborative learning that improves the overall learning efficiency. This paper studies MTRL for…

Machine Learning · Computer Science 2026-04-07 Yaoze Guo , Shana Moothedath

Vision-Language-Action (VLA) models have shown great potential in general robotic decision-making tasks via imitation learning. However, the variable quality of training data often constrains the performance of these models. On the other…

Robotics · Computer Science 2025-05-13 Hongyin Zhang , Zifeng Zhuang , Han Zhao , Pengxiang Ding , Hongchao Lu , Donglin Wang

Reinforcement learning (RL) policies deployed in real-world environments must remain reliable under adversarial perturbations. At the same time, modern deep RL agents are heavily over-parameterized, raising costs and fragility concerns.…

Machine Learning · Computer Science 2025-10-16 James Pedley , Benjamin Etheridge , Stephen J. Roberts , Francesco Quinzan

Recent advances at the intersection of reinforcement learning (RL) and visual intelligence have enabled agents that not only perceive complex visual scenes but also reason, generate, and act within them. This survey offers a critical and…

Computer Vision and Pattern Recognition · Computer Science 2025-12-24 Weijia Wu , Chen Gao , Joya Chen , Kevin Qinghong Lin , Qingwei Meng , Yiming Zhang , Yuke Qiu , Hong Zhou , Mike Zheng Shou

Large-scale finite element simulations of complex physical systems governed by partial differential equations (PDE) crucially depend on adaptive mesh refinement (AMR) to allocate computational budget to regions where higher resolution is…

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