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Multimodal medical image fusion is a crucial task that combines complementary information from different imaging modalities into a unified representation, thereby enhancing diagnostic accuracy and treatment planning. While deep learning…

图像与视频处理 · 电气工程与系统科学 2024-11-19 Meng Zhou , Yuxuan Zhang , Xiaolan Xu , Jiayi Wang , Farzad Khalvati

Traditional Convolutional Neural Networks (CNNs) typically use the same activation function (usually ReLU) for all neurons with non-linear mapping operations. For example, the deep convolutional architecture Inception-v4 uses ReLU. To…

计算机视觉与模式识别 · 计算机科学 2018-05-31 Luna M. Zhang

Previous research observed accuracy degradation when replacing the attention softmax with a point-wise activation such as ReLU. In the context of vision transformers, we find that this degradation is mitigated when dividing by sequence…

计算机视觉与模式识别 · 计算机科学 2023-10-18 Mitchell Wortsman , Jaehoon Lee , Justin Gilmer , Simon Kornblith

As a widely used non-linear activation, Rectified Linear Unit (ReLU) separates noise and signal in a feature map by learning a threshold or bias. However, we argue that the classification of noise and signal not only depends on the…

计算机视觉与模式识别 · 计算机科学 2016-04-05 Hongyang Li , Wanli Ouyang , Xiaogang Wang

While convolution and self-attention mechanisms have dominated architectural design in deep learning, this survey examines a fundamental yet understudied primitive: the Hadamard product. Despite its widespread implementation across various…

机器学习 · 计算机科学 2025-04-18 Grigorios G Chrysos , Yongtao Wu , Razvan Pascanu , Philip Torr , Volkan Cevher

We consider neural networks with rational activation functions. The choice of the nonlinear activation function in deep learning architectures is crucial and heavily impacts the performance of a neural network. We establish optimal bounds…

神经与进化计算 · 计算机科学 2020-10-01 Nicolas Boullé , Yuji Nakatsukasa , Alex Townsend

This work makes several contributions on stability and performance verification of nonlinear dynamical systems controlled by neural networks. First, we show that the stability and performance of a polynomial dynamical system controlled by a…

最优化与控制 · 数学 2022-09-27 Milan Korda

We introduce a conceptual framework for a lensless imaging system which employs an active metasurface as a high-frequency, continuously tunable amplitude and phase modulation aperture, coupled to a discrete single-pixel detector. Using an…

光学 · 物理学 2024-11-14 Julie Belleville , Prachi Thureja , Harry A. Atwater

Blind deconvolution is a classical yet challenging low-level vision problem with many real-world applications. Traditional maximum a posterior (MAP) based methods rely heavily on fixed and handcrafted priors that certainly are insufficient…

计算机视觉与模式识别 · 计算机科学 2020-03-19 Dongwei Ren , Kai Zhang , Qilong Wang , Qinghua Hu , Wangmeng Zuo

Neural networks are generally built by interleaving (adaptable) linear layers with (fixed) nonlinear activation functions. To increase their flexibility, several authors have proposed methods for adapting the activation functions…

机器学习 · 统计学 2017-11-27 Simone Scardapane , Steven Van Vaerenbergh , Simone Totaro , Aurelio Uncini

Deep neural networks have emerged as a widely used and effective means for tackling complex, real-world problems. However, a major obstacle in applying them to safety-critical systems is the great difficulty in providing formal guarantees…

人工智能 · 计算机科学 2017-05-22 Guy Katz , Clark Barrett , David Dill , Kyle Julian , Mykel Kochenderfer

Traditional neural networks require enormous amounts of data to build their complex mappings during a slow training procedure that hinders their abilities for relearning and adapting to new data. Memory-augmented neural networks enhance…

We study NAFNet (Nonlinear Activation Free Network), a simple and efficient deep learning baseline for image restoration. By using CIFAR10 images corrupted with noise and blur, we conduct an ablation study of NAFNet's core components. Our…

计算机视觉与模式识别 · 计算机科学 2025-06-25 Vladislav Esaulov , M. Moein Esfahani

Reducing the cost of multiplications is critical for efficient deep neural network deployment, especially in energy-constrained edge devices. In this work, we introduce HTMA-Net, a novel framework that integrates the Hadamard Transform (HT)…

计算机视觉与模式识别 · 计算机科学 2025-12-16 Emadeldeen Hamdan , Ahmet Enis Cetin

Active learning methods aim to improve sample complexity in machine learning. In this work, we investigate an active learning scheme via a novel gradient-free cutting-plane training method for ReLU networks of arbitrary depth and develop a…

机器学习 · 计算机科学 2025-06-26 Erica Zhang , Fangzhao Zhang , Mert Pilanci

Recent advancements in 3D object detection have benefited from multi-modal information from the multi-view cameras and LiDAR sensors. However, the inherent disparities between the modalities pose substantial challenges. We observe that…

计算机视觉与模式识别 · 计算机科学 2024-08-20 Juhan Cha , Minseok Joo , Jihwan Park , Sanghyeok Lee , Injae Kim , Hyunwoo J. Kim

Deep neural networks paved the way for significant improvements in image visual categorization during the last years. However, even though the tasks are highly varying, differing in complexity and difficulty, existing solutions mostly build…

机器学习 · 计算机科学 2019-10-29 Mina Basirat , Peter M. Roth

Recently, fully-connected and convolutional neural networks have been trained to achieve state-of-the-art performance on a wide variety of tasks such as speech recognition, image classification, natural language processing, and…

机器学习 · 计算机科学 2015-02-24 Yichuan Tang

Micro expression recognition (MER)is a very challenging task as the expression lives very short in nature and demands feature modeling with the involvement of both spatial and temporal dynamics. Existing MER systems exploit CNN networks to…

计算机视觉与模式识别 · 计算机科学 2020-05-19 Monu Verma , Santosh Kumar Vipparthi , Girdhari Singh

Modern Vision-Language Models (VLMs) achieve impressive performance but are limited by the quadratic complexity of self-attention, which prevents their deployment on edge devices and makes their understanding of high-resolution images and…

计算机视觉与模式识别 · 计算机科学 2026-05-05 Hongjie Wang , Niraj K. Jha