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Recurrent neural networks are widely used in speech and language processing. Due to dependency on the past, standard algorithms for training these models, such as back-propagation through time (BPTT), cannot be efficiently parallelised.…

音频与语音处理 · 电气工程与系统科学 2021-06-07 Zhengxiong Wang , Anton Ragni

Continuous-depth neural networks, such as Neural ODEs, have refashioned the understanding of residual neural networks in terms of non-linear vector-valued optimal control problems. The common solution is to use the adjoint sensitivity…

机器学习 · 计算机科学 2022-02-16 Andrew Corbett , Dmitry Kangin

Sparse deep learning aims to address the challenge of huge storage consumption by deep neural networks, and to recover the sparse structure of target functions. Although tremendous empirical successes have been achieved, most sparse deep…

机器学习 · 统计学 2020-11-17 Jincheng Bai , Qifan Song , Guang Cheng

Neural operators have been applied in various scientific fields, such as solving parametric partial differential equations, dynamical systems with control, and inverse problems. However, challenges arise when dealing with input functions…

数值分析 · 数学 2023-10-31 Zecheng Zhang , Christian Moya , Lu Lu , Guang Lin , Hayden Schaeffer

Nonnegative (linear) least square problems are a fundamental class of problems that is well-studied in statistical learning and for which solvers have been implemented in many of the standard programming languages used within the machine…

最优化与控制 · 数学 2022-03-09 Jelena Diakonikolas , Chenghui Li , Swati Padmanabhan , Chaobing Song

This paper addresses learning of sparse structural changes or differential network between two classes of non-paranormal graphical models. We assume a multi-source and heterogeneous dataset is available for each class, where the covariance…

机器学习 · 计算机科学 2024-10-04 Mojtaba Nikahd , Seyed Abolfazl Motahari

We consider the optimization of a network with amplify-and-forward relays. Observing that each relay has a power limit, and hence a non-linear transfer function, we focus on the similarity between relay networks and neural networks. This…

信号处理 · 电气工程与系统科学 2023-06-27 Itsik Bergel

The aim of sparse approximation is to estimate a sparse signal according to the measurement matrix and an observation vector. It is widely used in data analytics, image processing, and communication, etc. Up to now, a lot of research has…

信号处理 · 电气工程与系统科学 2018-05-31 Hao Wang , Ruibin Feng , Chi-Sing Leung

Neuroevolution is a promising area of research that combines evolutionary algorithms with neural networks. A popular subclass of neuroevolutionary methods, called evolution strategies, relies on dense noise perturbations to mutate networks,…

神经与进化计算 · 计算机科学 2023-02-14 Tim Whitaker , Darrell Whitley

In this paper, a new Discontinuity Capturing Shallow Neural Network (DCSNN) for approximating $d$-dimensional piecewise continuous functions and for solving elliptic interface problems is developed. There are three novel features in the…

数值分析 · 数学 2023-06-13 Wei-Fan Hu , Te-Sheng Lin , Ming-Chih Lai

For quasi-linear interface problems with discontinuous diffusion coefficients, the nonconvex objective functional often leads to optimization stagnation in randomized neural network approximations. This paper Proposes a…

数值分析 · 数学 2026-02-06 Siyuan Lang , Zhiyue Zhang

Ability of deep networks to extract high level features and of recurrent networks to perform time-series inference have been studied. In view of universality of one hidden layer network at approximating functions under weak constraints, the…

神经与进化计算 · 计算机科学 2014-12-19 Sharat C. Prasad , Piyush Prasad

One of the most influential results in neural network theory is the universal approximation theorem [1, 2, 3] which states that continuous functions can be approximated to within arbitrary accuracy by single-hidden-layer feedforward neural…

机器学习 · 计算机科学 2021-12-16 Clemens Hutter , Recep Gül , Helmut Bölcskei

We study sparse linear regression over a network of agents, modeled as an undirected graph (with no centralized node). The estimation problem is formulated as the minimization of the sum of the local LASSO loss functions plus a quadratic…

机器学习 · 计算机科学 2023-06-23 Yao Ji , Gesualdo Scutari , Ying Sun , Harsha Honnappa

Non-negative signals form an important class of sparse signals. Many algorithms have already beenproposed to recover such non-negative representations, where greedy and convex relaxed algorithms are among the most popular methods. One fast…

信号处理 · 电气工程与系统科学 2020-06-09 Konstantinos Voulgaris , Mike E. Davies , Mehrdad Yaghoobi

Deep neural networks unlocked a vast range of new applications by solving tasks of which many were previously deemed as reserved to higher human intelligence. One of the developments enabling this success was a boost in computing power…

神经与进化计算 · 计算机科学 2021-12-17 Nadezhda Semenova , Laurent Larger , Daniel Brunner

Observational studies are based on accurate assessment of human state. A behavior recognition system that models interlocutors' state in real-time can significantly aid the mental health domain. However, behavior recognition from speech…

机器学习 · 计算机科学 2016-06-15 Haoqi Li , Brian Baucom , Panayiotis Georgiou

Traditional maximum entropy and sparsity-based algorithms for analytic continuation often suffer from the ill-posed kernel matrix or demand tremendous computation time for parameter tuning. Here we propose a neural network method by convex…

机器学习 · 计算机科学 2022-02-07 Dongchen Huang , Yi-feng Yang

The subject of study is a neural network with binary neurons, randomly diluted synapses and variable pattern activity. We look at the system with parallel updating using a probabilistic approach to solve the one step dynamics with one…

无序系统与神经网络 · 物理学 2009-10-31 Stefan Grosskinsky

We study the problem of reconstructing solutions of inverse problems when only noisy measurements are available. We assume that the problem can be modeled with an infinite-dimensional forward operator that is not continuously invertible.…

数值分析 · 数学 2023-10-23 Andrés Felipe Lerma Pineda , Philipp Christian Petersen