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High-quality mesh generation is the foundation of accurate finite element analysis. Due to the vast interior vertices search space and complex initial boundaries, mesh generation for complicated domains requires substantial manual…

数值分析 · 数学 2023-05-02 Hua Tong , Kuanren Qian , Eni Halilaj , Yongjie Jessica Zhang

We introduce a simple permutation equivariant layer for deep learning with set structure.This type of layer, obtained by parameter-sharing, has a simple implementation and linear-time complexity in the size of each set. We use deep…

机器学习 · 统计学 2017-02-27 Siamak Ravanbakhsh , Jeff Schneider , Barnabas Poczos

The task of MRI fingerprinting is to identify tissue parameters from complex-valued MRI signals. The prevalent approach is dictionary based, where a test MRI signal is compared to stored MRI signals with known tissue parameters and the most…

计算机视觉与模式识别 · 计算机科学 2017-07-04 Patrick Virtue , Stella X. Yu , Michael Lustig

Wavelet based algorithms in numerical analysis are similar to other transform methods in that vectors and operators are expanded into a basis and the computations take place in this new system of coordinates. However, due to the recursive…

comp-gas · 物理学 2008-02-03 G. Beylkin

High-Frequency (HF) signals are ubiquitous in the industrial world and are of great use for monitoring of industrial assets. Most deep learning tools are designed for inputs of fixed and/or very limited size and many successful applications…

机器学习 · 计算机科学 2022-03-03 Gabriel Michau , Gaetan Frusque , Olga Fink

In the first part of this paper, we define a deep convolutional neural network connected with the fractional Fourier transform (FrFT) using the $\theta$-translation operator, the translation operator associated with the FrFT. Subsequently,…

泛函分析 · 数学 2024-08-14 M. H. A. Biswas , P. Massopust , R. Ramakrishnan

Deep neural networks have become a foundational tool for addressing imaging inverse problems. They are typically trained for a specific task, with a supervised loss to learn a mapping from the observations to the image to recover. However,…

计算机视觉与模式识别 · 计算机科学 2023-12-01 Matthieu Terris , Thomas Moreau

We introduce a novel framework for training deep stereo networks effortlessly and without any ground-truth. By leveraging state-of-the-art neural rendering solutions, we generate stereo training data from image sequences collected with a…

计算机视觉与模式识别 · 计算机科学 2023-03-31 Fabio Tosi , Alessio Tonioni , Daniele De Gregorio , Matteo Poggi

Deep neural networks are widely used prediction algorithms whose performance often improves as the number of weights increases, leading to over-parametrization. We consider a two-layered neural network whose first layer is frozen while the…

机器学习 · 计算机科学 2023-04-10 Roman Worschech , Bernd Rosenow

Designing machine learning architectures for processing neural networks in their raw weight matrix form is a newly introduced research direction. Unfortunately, the unique symmetry structure of deep weight spaces makes this design very…

机器学习 · 计算机科学 2023-06-02 Aviv Navon , Aviv Shamsian , Idan Achituve , Ethan Fetaya , Gal Chechik , Haggai Maron

Uncertainty is a fundamental aspect of real-world scenarios, where perfect information is rarely available. Humans naturally develop complex internal models to navigate incomplete data and effectively respond to unforeseen or partially…

机器学习 · 计算机科学 2025-08-08 Wenhao Liang , Chang Dong , Liangwei Zheng , Wei Zhang , Weitong Chen

Compared to real-valued signals, complex-valued signals provide a unique and intuitive representation of the phase of real physical systems and processes, which holds fundamental significance and is widely applied across many fields of…

信号处理 · 电气工程与系统科学 2025-11-04 Wang Hao , Kuang Zhang , Hou Chengyu , Tan Chenxing , Cui Weiming , Fu Weifeng , Yao Xinran

Unsupervised deep metric learning (UDML) focuses on learning a semantic representation space using only unlabeled data. This challenging problem requires accurately estimating the similarity between data points, which is used to supervise a…

计算机视觉与模式识别 · 计算机科学 2024-03-25 Shubhang Bhatnagar , Narendra Ahuja

We propose a random convolutional neural network to generate a feature space in which we study image classification and retrieval performance. Put briefly we apply random convolutional blocks followed by global average pooling to generate a…

计算机视觉与模式识别 · 计算机科学 2019-03-19 Yunzhe Xue , Usman Roshan

We describe a layer-by-layer algorithm for training deep convolutional networks, where each step involves gradient updates for a two layer network followed by a simple clustering algorithm. Our algorithm stems from a deep generative model…

机器学习 · 计算机科学 2018-06-26 Eran Malach , Shai Shalev-Shwartz

We propose a novel image sampling method for differentiable image transformation in deep neural networks. The sampling schemes currently used in deep learning, such as Spatial Transformer Networks, rely on bilinear interpolation, which…

计算机视觉与模式识别 · 计算机科学 2019-09-11 Wei Jiang , Weiwei Sun , Andrea Tagliasacchi , Eduard Trulls , Kwang Moo Yi

We report the development of deep learning coherent electron diffractive imaging at sub-angstrom resolution using convolutional neural networks (CNNs) trained with only simulated data. We experimentally demonstrate this method by applying…

Deep learning (DL) applied to a device's radio-frequency fingerprint~(RFF) has attracted significant attention in physical-layer authentication due to its extraordinary classification performance. Conventional DL-RFF techniques are trained…

信号处理 · 电气工程与系统科学 2022-10-18 Renjie Xie , Wei Xu , Jiabao Yu , Aiqun Hu , Derrick Wing Kwan Ng , A. Lee Swindlehurst

Foundational deep learning (DL) models are general models, trained on large, diverse, and unlabelled datasets, typically using self-supervised learning techniques have led to significant advancements especially in natural language…

信号处理 · 电气工程与系统科学 2024-11-18 Ahmed Aboulfotouh , Ashkan Eshaghbeigi , Dimitrios Karslidis , Hatem Abou-Zeid

Deep neural networks for time series must capture complex temporal patterns, to effectively represent dynamic data. Self- and semi-supervised learning methods show promising results in pre-training large models, which -- when finetuned for…

机器学习 · 计算机科学 2025-08-15 Yuhan Xie , William Cappelletti , Mahsa Shoaran , Pascal Frossard