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Interest is rising in Physics-Informed Neural Networks (PINNs) as a mesh-free alternative to traditional numerical solvers for partial differential equations (PDEs). However, PINNs often struggle to learn high-frequency and multi-scale…

机器学习 · 计算机科学 2025-02-25 Madison Cooley , Varun Shankar , Robert M. Kirby , Shandian Zhe

In this paper, we propose a phase shift deep neural network (PhaseDNN), which provides a uniform wideband convergence in approximating high frequency functions and solutions of wave equations. The PhaseDNN makes use of the fact that common…

机器学习 · 计算机科学 2019-12-17 Wei Cai , Xiaoguang Li , Lizuo Liu

This paper presents a significant improvement for the synthesis of texture images using convolutional neural networks (CNNs), making use of constraints on the Fourier spectrum of the results. More precisely, the texture synthesis is…

计算机视觉与模式识别 · 计算机科学 2016-05-20 Gang Liu , Yann Gousseau , Gui-Song Xia

Why deep neural networks (DNNs) capable of overfitting often generalize well in practice is a mystery [#zhang2016understanding]. To find a potential mechanism, we focus on the study of implicit biases underlying the training process of…

机器学习 · 计算机科学 2019-11-04 Zhi-Qin John Xu , Yaoyu Zhang , Yanyang Xiao

Recent developments in machine learning and signal processing have resulted in many new techniques that are able to effectively capture the intrinsic yet complex properties of hyperspectral imagery. Tasks ranging from anomaly detection to…

计算机视觉与模式识别 · 计算机科学 2020-11-24 Ilya Kavalerov , Weilin Li , Wojciech Czaja , Rama Chellappa

The purpose of feature extraction on convolutional neural networks is to reuse deep representations learnt for a pre-trained model to solve a new, potentially unrelated problem. However, raw feature extraction from all layers is unfeasible…

神经与进化计算 · 计算机科学 2019-11-11 Victor Gimenez-Abalos , Armand Vilalta , Dario Garcia-Gasulla , Jesus Labarta , Eduard Ayguadé

Frequency analysis is useful for understanding the mechanisms of representation learning in neural networks (NNs). Most research in this area focuses on the learning dynamics of NNs for regression tasks, while little for classification.…

机器学习 · 计算机科学 2023-08-31 Shunxin Wang , Raymond Veldhuis , Christoph Brune , Nicola Strisciuglio

Deep neural networks (DNNs) achieve impressive results for complicated tasks like object detection on images and speech recognition. Motivated by this practical success, there is now a strong interest in showing good theoretical properties…

机器学习 · 统计学 2020-06-16 Michael Kohler , Adam Krzyzak , Sophie Langer

Recurrent neural networks (RNNs) have proved effective at one dimensional sequence learning tasks, such as speech and online handwriting recognition. Some of the properties that make RNNs suitable for such tasks, for example robustness to…

人工智能 · 计算机科学 2007-05-23 Alex Graves , Santiago Fernandez , Juergen Schmidhuber

We present a new rank-adaptive tensor method to compute the numerical solution of high-dimensional nonlinear PDEs. The method combines functional tensor train (FTT) series expansions, operator splitting time integration, and a new…

数值分析 · 数学 2021-04-27 Alec Dektor , Abram Rodgers , Daniele Venturi

Classical artificial neural networks have witnessed widespread successes in machine-learning applications. Here, we propose fermion neural networks (FNNs) whose physical properties, such as local density of states or conditional…

量子物理 · 物理学 2023-10-04 Pei-Lin Zheng , Jia-Bao Wang , Yi Zhang

Twisted Convolutional Networks (TCNs) are proposed as a novel deep learning architecture for classifying one-dimensional data with arbitrary feature order and minimal spatial relationships. Unlike conventional Convolutional Neural Networks…

计算机视觉与模式识别 · 计算机科学 2025-12-09 Junbo Jacob Lian , Haoran Chen , Kaichen Ouyang , Yujun Zhang , Rui Zhong , Huiling Chen

Deep learning based methods, especially convolutional neural networks (CNNs) have been successfully applied in the field of single image super-resolution (SISR). To obtain better fidelity and visual quality, most of existing networks are of…

图像与视频处理 · 电气工程与系统科学 2021-08-17 Wenbin Xie , Dehua Song , Chang Xu , Chunjing Xu , Hui Zhang , Yunhe Wang

Tensor networks (TNs) enable compact representations of large tensors through shared parameters. Their use in probabilistic modeling is particularly appealing, as probabilistic tensor networks (PTNs) allow for tractable computation of…

机器学习 · 计算机科学 2025-10-02 Marawan Gamal Abdel Hameed , Guillaume Rabusseau

Deep neural networks (DNNs) play an important role in machine learning due to its outstanding performance compared to other alternatives. However, DNNs are not suitable for safety-critical applications since DNNs can be easily fooled by…

机器学习 · 计算机科学 2021-03-26 Zhixin Pan , Prabhat Mishra

The machine learning random Fourier feature method for data in high dimension is computationally and theoretically attractive since the optimization is based on a convex standard least squares problem and independent sampling of Fourier…

Neural networks are known to be a class of highly expressive functions able to fit even random input-output mappings with $100\%$ accuracy. In this work, we present properties of neural networks that complement this aspect of expressivity.…

Despite the enormous success of artificial neural networks (ANNs) in many disciplines, the characterization of their computations and the origin of key properties such as generalization and robustness remain open questions. Recent…

计算机视觉与模式识别 · 计算机科学 2022-03-18 Nikos Karantzas , Emma Besier , Josue Ortega Caro , Xaq Pitkow , Andreas S. Tolias , Ankit B. Patel , Fabio Anselmi

Neural network (NN) ensembles can reduce large prediction variance of NN and improve prediction accuracy. For highly nonlinear problems with insufficient data set, the prediction accuracy of NN models becomes unstable, resulting in a…

机器学习 · 计算机科学 2022-10-20 Ungki Lee , Namwoo Kang

Deep Learning is considered to be a quite young in the area of machine learning research, found its effectiveness in dealing complex yet high dimensional dataset that includes but limited to images, text and speech etc. with multiple levels…

计算机视觉与模式识别 · 计算机科学 2016-10-19 Mrutyunjaya Panda