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Scientific computing has been an indispensable tool in applied sciences and engineering, where traditional numerical methods are often employed due to their superior accuracy guarantees. However, these methods often encounter challenges…

数值分析 · 数学 2024-07-23 Ran Bi , Jingrun Chen , Weibing Deng

Machine Learning surrogates for Computational Fluid Dynamics (CFD), particularly Graph Neural Networks (GNNs) and Transformers, have become a new important approach for accelerating physics simulations. However, we identify a critical…

机器学习 · 计算机科学 2026-05-05 Paul Garnier , Vincent Lannelongue , Elie Hachem

To solve high-dimensional parameter-dependent partial differential equations (pPDEs), a neural network architecture is presented. It is constructed to map parameters of the model data to corresponding finite element solutions. To improve…

数值分析 · 数学 2024-03-20 Janina E. Schütte , Martin Eigel

Despite the utility of neural networks (NNs) for astronomical time-series classification, the proliferation of learning architectures applied to diverse datasets has thus far hampered a direct intercomparison of different approaches. Here…

天体物理仪器与方法 · 物理学 2020-10-05 Sara Jamal , Joshua S. Bloom

The use of topological descriptors in modern machine learning applications, such as Persistence Diagrams (PDs) arising from Topological Data Analysis (TDA), has shown great potential in various domains. However, their practical use in…

This work presents a novel adaptive framework for simultaneously estimating spacecraft attitude and sensor misalignment. Uncorrected star tracker misalignment can introduce significant pointing errors that compromise mission objectives in…

系统与控制 · 电气工程与系统科学 2025-07-29 Ridma Ganganath , Simone Servadio , David Lee

The SDSS-IV dataset contains information about various astronomical bodies such as Galaxies, Stars, and Quasars captured by observatories. Inspired by our work on deep multimodal learning, which utilized transfer learning to classify the…

计算机视觉与模式识别 · 计算机科学 2022-05-17 Sabeesh Ethiraj , Bharath Kumar Bolla

Tensorial neural networks (TNNs) combine the successes of multilinear algebra with those of deep learning to enable extremely efficient reduced-order models of high-dimensional problems. Here, I describe a deep neural network architecture…

机器学习 · 计算机科学 2023-12-27 Caleb G. Wagner

Spectral Graph Neural Networks (GNNs) have achieved state-of-the-art results by defining graph convolutions in the spectral domain. A common approach, popularized by ChebyNet, is to use polynomial filters based on continuous orthogonal…

机器学习 · 计算机科学 2025-11-04 Huseyin Goksu

We introduce a new class of spatially stochastic physics and data informed deep latent models for parametric partial differential equations (PDEs) which operate through scalable variational neural processes. We achieve this by assigning…

Multiphysics problems such as multicomponent diffusion, phase transformations in multiphase systems and alloy solidification involve numerical solution of a coupled system of nonlinear partial differential equations (PDEs). Numerical…

材料科学 · 物理学 2022-11-24 Vir Karan , A. Maruthi Indresh , Saswata Bhattacharyya

The Rectilinear Steiner Minimum Tree (RSMT) problem is a fundamental problem in VLSI placement and routing and is known to be NP-hard. Traditional RSMT algorithms spend a significant amount of time on finding Steiner points to reduce the…

机器学习 · 计算机科学 2024-07-02 Bugra Onal , Eren Dogan , Muhammad Hadir Khan , Matthew R. Guthaus

We construct and analyze approximation rates of deep operator networks (ONets) between infinite-dimensional spaces that emulate with an exponential rate of convergence the coefficient-to-solution map of elliptic second-order partial…

数值分析 · 数学 2023-11-27 Carlo Marcati , Christoph Schwab

Neural operators, as a powerful approximation to the non-linear operators between infinite-dimensional function spaces, have proved to be promising in accelerating the solution of partial differential equations (PDE). However, it requires a…

机器学习 · 计算机科学 2024-05-08 Xinquan Huang , Wenlei Shi , Xiaotian Gao , Xinran Wei , Jia Zhang , Jiang Bian , Mao Yang , Tie-Yan Liu

Recent studies shows that the majority of existing deep steganalysis models have a large amount of redundancy, which leads to a huge waste of storage and computing resources. The existing model compression method cannot flexibly compress…

计算机视觉与模式识别 · 计算机科学 2022-06-14 Shunquan Tan , Qiushi Li , Laiyuan Li , Bin Li , Jiwu Huang

Solving inverse problems is a fundamental component of science, engineering and mathematics. With the advent of deep learning, deep neural networks have significant potential to outperform existing state-of-the-art, model-based methods for…

机器学习 · 计算机科学 2022-12-22 Maksym Neyra-Nesterenko , Ben Adcock

Modern convolutional networks such as ResNet and NASNet have achieved state-of-the-art results in many computer vision applications. These architectures consist of stages, which are sets of layers that operate on representations in the same…

计算机视觉与模式识别 · 计算机科学 2020-10-21 Artur Jordao , Fernando Akio , Maiko Lie , William Robson Schwartz

This paper addresses the understanding and characterization of residual networks (ResNet), which are among the state-of-the-art deep learning architectures for a variety of supervised learning problems. We focus on the mapping component of…

计算机视觉与模式识别 · 计算机科学 2018-06-25 Francois Rousseau , Ronan Fablet

Time domain astronomy has emerged as a vibrant research field in recent years, focusing on celestial objects that exhibit variable magnitudes or positions. Given the urgency of conducting follow-up observations for such objects, the…

天体物理仪器与方法 · 物理学 2023-10-12 Rui Sun , Peng Jia , Yongyang Sun , Zhimin Yang , Qiang Liu , Hongyan Wei

In this paper, the fourth version the Sloan Digital Sky Survey (SDSS-4), Data Release 16 dataset was used to classify the SDSS dataset into galaxies, stars, and quasars using machine learning and deep learning architectures. We efficiently…

计算机视觉与模式识别 · 计算机科学 2022-05-24 Sabeesh Ethiraj , Bharath Kumar Bolla