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Attention mechanisms have achieved significant empirical success in multiple fields, but their underlying optimization objectives remain unclear yet. Moreover, the quadratic complexity of self-attention has become increasingly prohibitive.…

Machine Learning · Computer Science 2025-11-06 Qishuai Wen , Zhiyuan Huang , Chun-Guang Li

Transformer architectures are now central to sequence modeling tasks. At its heart is the attention mechanism, which enables effective modeling of long-term dependencies in a sequence. Recently, transformers have been successfully applied…

Computer Vision and Pattern Recognition · Computer Science 2022-06-16 Lin Zheng , Huijie Pan , Lingpeng Kong

This paper introduces a novel attention mechanism, called dual attention, which is both efficient and effective. The dual attention mechanism consists of two parallel components: local attention generated by Convolutional Neural Networks…

Computer Vision and Pattern Recognition · Computer Science 2023-05-25 Zhengkai Jiang , Liang Liu , Jiangning Zhang , Yabiao Wang , Mingang Chen , Chengjie Wang

Self-attention mechanism recently achieves impressive advancement in Natural Language Processing (NLP) and Image Processing domains. And its permutation invariance property makes it ideally suitable for point cloud processing. Inspired by…

Computer Vision and Pattern Recognition · Computer Science 2021-04-28 Xian-Feng Han , Zhang-Yue He , Jia Chen , Guo-Qiang Xiao

Attention is a powerful component of modern neural networks across a wide variety of domains. In this paper, we seek to quantify the regularity (i.e. the amount of smoothness) of the attention operation. To accomplish this goal, we propose…

Machine Learning · Statistics 2021-02-11 James Vuckovic , Aristide Baratin , Remi Tachet des Combes

Humans can naturally and effectively find salient regions in complex scenes. Motivated by this observation, attention mechanisms were introduced into computer vision with the aim of imitating this aspect of the human visual system. Such an…

Computer Vision and Pattern Recognition · Computer Science 2022-07-06 Meng-Hao Guo , Tian-Xing Xu , Jiang-Jiang Liu , Zheng-Ning Liu , Peng-Tao Jiang , Tai-Jiang Mu , Song-Hai Zhang , Ralph R. Martin , Ming-Ming Cheng , Shi-Min Hu

A variety of attention mechanisms have been studied to improve the performance of various computer vision tasks. However, the prior methods overlooked the significance of retaining the information on both channel and spatial aspects to…

Computer Vision and Pattern Recognition · Computer Science 2021-12-13 Yichao Liu , Zongru Shao , Nico Hoffmann

Semi-dense feature matching methods have been significantly advanced by leveraging attention mechanisms to extract discriminative descriptors. However, most existing approaches treat all pixels equally during attention computations, which…

Computer Vision and Pattern Recognition · Computer Science 2026-02-24 Dongyue Li

Informative features play a crucial role in the single image super-resolution task. Channel attention has been demonstrated to be effective for preserving information-rich features in each layer. However, channel attention treats each…

Image and Video Processing · Electrical Eng. & Systems 2020-08-21 Ben Niu , Weilei Wen , Wenqi Ren , Xiangde Zhang , Lianping Yang , Shuzhen Wang , Kaihao Zhang , Xiaochun Cao , Haifeng Shen

This paper investigates the learning theory of Transformer networks for regression tasks on the compact Euclidean domain $[0,1]^d$ and $d$-dimensional compact Riemannian manifolds. We propose a novel constructive approximation framework for…

Machine Learning · Statistics 2026-05-12 Zhongjie Shi , Wenjing Liao

Intra-class variations in the open world lead to various challenges in classification tasks. To overcome these challenges, fine-grained classification was introduced, and many approaches were proposed. Some rely on locating and using…

Computer Vision and Pattern Recognition · Computer Science 2023-02-10 Salwa Al Khatib , Mohamed El Amine Boudjoghra , Jameel Hassan

We present a lightweight network that infers grouping and boundaries, including curves, corners and junctions. It operates in a bottom-up fashion, analogous to classical methods for sub-pixel edge localization and edge-linking, but with a…

Computer Vision and Pattern Recognition · Computer Science 2024-09-17 Mia Gaia Polansky , Charles Herrmann , Junhwa Hur , Deqing Sun , Dor Verbin , Todd Zickler

Self-attention networks have shown remarkable progress in computer vision tasks such as image classification. The main benefit of the self-attention mechanism is the ability to capture long-range feature interactions in attention-maps.…

Computer Vision and Pattern Recognition · Computer Science 2021-03-19 Andong Tan , Duc Tam Nguyen , Maximilian Dax , Matthias Nießner , Thomas Brox

We derive fundamental lower bounds on the connectivity and the memory requirements of deep neural networks guaranteeing uniform approximation rates for arbitrary function classes in $L^2(\mathbb R^d)$. In other words, we establish a…

Machine Learning · Computer Science 2018-05-17 Helmut Bölcskei , Philipp Grohs , Gitta Kutyniok , Philipp Petersen

Convolutional layers are an integral part of many deep neural network solutions in computer vision. Recent work shows that replacing the standard convolution operation with mechanisms based on self-attention leads to improved performance on…

Computer Vision and Pattern Recognition · Computer Science 2020-12-21 Souvik Kundu , Hesham Mostafa , Sharath Nittur Sridhar , Sairam Sundaresan

We develop new algorithms for simultaneous learning of multiple tasks (e.g., image classification, depth estimation), and for adapting to unseen task/domain distributions within those high-level tasks (e.g., different environments). First,…

Machine Learning · Computer Science 2020-06-16 Kiran Lekkala , Laurent Itti

Pairwise dot-product self-attention is key to the success of transformers that achieve state-of-the-art performance across a variety of applications in language and vision. This dot-product self-attention computes attention weights among…

Machine Learning · Computer Science 2024-11-04 Stefan K. Nielsen , Laziz U. Abdullaev , Rachel S. Y. Teo , Tan M. Nguyen

Self-attention in Transformers relies on globally normalized softmax weights, causing all tokens to compete for influence at every layer. When composed across depth, this interaction pattern induces strong synchronization dynamics that…

Machine Learning · Computer Science 2026-05-26 Jingkun Liu , Yisong Yue , Max Welling , Yue Song

Large language models (LLMs) have demonstrated remarkable performance across a wide range of tasks. However, the quadratic complexity of softmax attention remains a central bottleneck that limits their scalability. Alman and Song (NeurIPS…

Machine Learning · Computer Science 2026-03-20 Maryam Aliakbarpour , Vladimir Braverman , Junze Yin , Haochen Zhang

Attention mechanisms have raised significant interest in the research community, since they promise significant improvements in the performance of neural network architectures. However, in any specific problem, we still lack a principled…

Computer Vision and Pattern Recognition · Computer Science 2021-12-24 Rafael Pedro , Arlindo L. Oliveira