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In this paper, we develop an efficient sketchy empirical natural gradient method (SENG) for large-scale deep learning problems. The empirical Fisher information matrix is usually low-rank since the sampling is only practical on a small…

最优化与控制 · 数学 2021-03-26 Minghan Yang , Dong Xu , Zaiwen Wen , Mengyun Chen , Pengxiang Xu

To address limitations of the graph fractional Fourier transform (GFRFT) Wiener filtering and the traditional joint time-vertex fractional Fourier transform (JFRFT) Wiener filtering, this study proposes a filtering method based on the…

信号处理 · 电气工程与系统科学 2025-07-30 Ziqi Yan , Zhichao Zhang

Recently, brain-inspired spiking neuron networks (SNNs) have attracted widespread research interest because of their event-driven and energy-efficient characteristics. Still, it is difficult to efficiently train deep SNNs due to the…

神经与进化计算 · 计算机科学 2022-05-17 Shikuang Deng , Yuhang Li , Shanghang Zhang , Shi Gu

This work, for the first time, introduces two constant factor approximation algorithms with linear query complexity for non-monotone submodular maximization over a ground set of size $n$ subject to a knapsack constraint, $\mathsf{DLA}$ and…

数据结构与算法 · 计算机科学 2023-07-11 Canh V. Pham , Tan D. Tran , Dung T. K. Ha , My T. Thai

We propose rectified factor networks (RFNs) to efficiently construct very sparse, non-linear, high-dimensional representations of the input. RFN models identify rare and small events in the input, have a low interference between code units,…

机器学习 · 计算机科学 2018-01-31 Djork-Arné Clevert , Andreas Mayr , Thomas Unterthiner , Sepp Hochreiter

This paper studies large-scale optimization problems on Riemannian manifolds whose objective function is a finite sum of negative log-probability losses. Such problems arise in various machine learning and signal processing applications. By…

最优化与控制 · 数学 2022-07-18 Jiang Hu , Ruicheng Ao , Anthony Man-Cho So , Minghan Yang , Zaiwen Wen

Collaborative filtering models based on matrix factorization and learned similarities using Artificial Neural Networks (ANNs) have gained significant attention in recent years. This is, in part, because ANNs have demonstrated good results…

信息检索 · 计算机科学 2021-07-29 Vito Walter Anelli , Alejandro Bellogín , Tommaso Di Noia , Claudio Pomo

Remote Sensing Scene Classification is a challenging and valuable research topic, in which Convolutional Neural Network (CNN) has played a crucial role. CNN can extract hierarchical convolutional features from remote sensing imagery, and…

计算机视觉与模式识别 · 计算机科学 2024-02-02 Yinzhu Cheng

We present Graph Random Neural Features (GRNF), a novel embedding method from graph-structured data to real vectors based on a family of graph neural networks. The embedding naturally deals with graph isomorphism and preserves the metric…

机器学习 · 计算机科学 2020-06-03 Daniele Zambon , Cesare Alippi , Lorenzo Livi

Understanding feature learning is an important open question in establishing a mathematical foundation for deep neural networks. The Neural Feature Ansatz (NFA) states that after training, the Gram matrix of the first-layer weights of a…

机器学习 · 计算机科学 2025-10-20 Edward Tansley , Estelle Massart , Coralia Cartis

Gradient regularization (GR) is a method that penalizes the gradient norm of the training loss during training. While some studies have reported that GR can improve generalization performance, little attention has been paid to it from the…

机器学习 · 计算机科学 2023-02-06 Ryo Karakida , Tomoumi Takase , Tomohiro Hayase , Kazuki Osawa

We introduce Sven (Singular Value dEsceNt), a new optimization algorithm for neural networks that exploits the natural decomposition of loss functions into a sum over individual data points, rather than reducing the full loss to a single…

机器学习 · 计算机科学 2026-04-03 Samuel Bright-Thonney , Thomas R. Harvey , Andre Lukas , Jesse Thaler

We present a stochastic first-order optimization method specialized for deep neural networks (DNNs), ECCO-DNN. This method models the optimization variable trajectory as a dynamical system and develops a discretization algorithm that…

机器学习 · 计算机科学 2023-10-24 Carmel Fiscko , Aayushya Agarwal , Yihan Ruan , Soummya Kar , Larry Pileggi , Bruno Sinopoli

Accelerating the convergence of second-order optimization, particularly Newton-type methods, remains a pivotal challenge in algorithmic research. In this paper, we extend previous work on the \textbf{Quadratic Gradient (QG)} and rigorously…

最优化与控制 · 数学 2026-04-01 John Chiang

We propose in this work the gradient-enhanced deep neural networks (DNNs) approach for function approximations and uncertainty quantification. More precisely, the proposed approach adopts both the function evaluations and the associated…

机器学习 · 计算机科学 2022-11-09 Xiaodong Feng , Li Zeng

The performance of Deep Neural Networks (DNNs) keeps elevating in recent years with increasing network depth and width. To enable DNNs on edge devices like mobile phones, researchers proposed several network compression methods including…

计算机视觉与模式识别 · 计算机科学 2020-01-27 Yuhui Xu , Yuxi Li , Shuai Zhang , Wei Wen , Botao Wang , Yingyong Qi , Yiran Chen , Weiyao Lin , Hongkai Xiong

Efforts to understand the generalization mystery in deep learning have led to the belief that gradient-based optimization induces a form of implicit regularization, a bias towards models of low "complexity." We study the implicit…

机器学习 · 计算机科学 2019-10-29 Sanjeev Arora , Nadav Cohen , Wei Hu , Yuping Luo

This paper studies faithful explanations for Graph Neural Networks (GNNs). First, we provide a new and general method for formally characterizing the faithfulness of explanations for GNNs. It applies to existing explanation methods,…

机器学习 · 计算机科学 2022-05-25 Zifan Wang , Yuhang Yao , Chaoran Zhang , Han Zhang , Youjie Kang , Carlee Joe-Wong , Matt Fredrikson , Anupam Datta

Forward-only learning algorithms have recently gained attention as alternatives to gradient backpropagation, replacing the backward step of this latter solver with an additional contrastive forward pass. Among these approaches, the…

机器学习 · 计算机科学 2024-09-12 Erik B. Terres-Escudero , Javier Del Ser , Pablo Garcia-Bringas

We propose a novel parameter estimation procedure that works efficiently for conditional random fields (CRF). This algorithm is an extension to the maximum likelihood estimation (MLE), using loss functions defined by Bregman divergences…

机器学习 · 计算机科学 2015-08-11 Yuan Cao