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To improve the generalization of detectors, for domain adaptive object detection (DAOD), recent advances mainly explore aligning feature-level distributions between the source and single-target domain, which may neglect the impact of…

计算机视觉与模式识别 · 计算机科学 2021-08-17 Aming Wu , Rui Liu , Yahong Han , Linchao Zhu , Yi Yang

In this paper, we introduce the Deep Finite Volume Method (DFVM), an innovative deep learning framework tailored for solving high-order (order \(\geq 2\)) partial differential equations (PDEs). Our approach centers on a novel loss function…

数值分析 · 数学 2024-07-15 Jianhuan Cen , Qingsong Zou

Dynamic mode decomposition (DMD) has become a powerful data-driven method for analyzing the spatiotemporal dynamics of complex, high-dimensional systems. However, conventional DMD methods are limited to matrix-based formulations, which…

系统与控制 · 电气工程与系统科学 2025-08-05 Ziqin He , Mengqi Hu , Yifei Lou , Can Chen

Solving large-scale Helmholtz problems discretized with high-order finite elements is notoriously difficult, especially in 3D where direct factorization of the system matrix is very expensive and memory demanding, and robust convergence of…

数值分析 · 数学 2025-06-23 Boris Martin , Pierre Jolivet , Christophe Geuzaine

Bayesian inverse problems are often computationally challenging when the forward model is governed by complex partial differential equations (PDEs). This is typically caused by expensive forward model evaluations and high-dimensional…

机器学习 · 统计学 2023-02-08 Zhihang Xu , Yingzhi Xia , Qifeng Liao

Professional 3D asset creation often requires diverse sculpting brushes to add surface details and geometric structures. Despite recent progress in 3D generation, producing reusable sculpting brushes compatible with artists' workflows…

图形学 · 计算机科学 2025-08-08 Hengyu Meng , Duotun Wang , Zhijing Shao , Ligang Liu , Zeyu Wang

Unfitted finite element methods, e.g., extended finite element techniques or the so-called finite cell method, have a great potential for large scale simulations, since they avoid the generation of body-fitted meshes and the use of graph…

数值分析 · 数学 2021-09-29 Santiago Badia , Francesc Verdugo

We introduce a new overlapping Domain Decomposition Method (DDM) to solve the fully nonlinear Monge-Amp\`ere equation. While DDMs have been extensively studied for linear problems, their application to fully nonlinear partial differential…

We develop a numerical framework, the Deep Tangent Bundle (DTB) method, that is suitable for computing solutions of evolutionary partial differential equations (PDEs) in high dimensions. The main idea is to use the tangent bundle of an…

数值分析 · 数学 2025-09-03 Hao Wu , Haomin Zhou

Although synthetic data can alleviate acquisition challenges in image dehazing tasks, it also introduces the problem of domain bias when dealing with small-scale data. This paper proposes a novel dual-branch collaborative unpaired dehazing…

计算机视觉与模式识别 · 计算机科学 2024-07-16 Shuaibin Fan , Minglong Xue , Aoxiang Ning , Senming Zhong

Filtering is an important issue in signals and images processing. Many images and videos are compressed using discrete cosine transform (DCT). For reducing the computation complexity, we are interested in filtering block and images directly…

计算机视觉与模式识别 · 计算机科学 2017-10-20 Mostafa Amin-Naji , Ali Aghagolzadeh

Motivated by the idea of imposing paralleling computing on solving stochastic differential equations (SDEs), we introduce a new Domain Decomposition Scheme to solve forward-backward stochastic differential equations (FBSDEs) parallely. We…

数值分析 · 数学 2010-08-03 Minh-Binh Tran

In this paper we present a Fourier feature based deep domain decomposition method (F-D3M) for partial differential equations (PDEs). Currently, deep neural network based methods are actively developed for solving PDEs, but their efficiency…

数值分析 · 数学 2022-05-05 Sen Li , Yingzhi Xia , Yu Liu , Qifeng Liao

With recent advancements in computer hardware and software platforms, there has been a surge of interest in solving partial differential equations with deep learning-based methods, and the integration with domain decomposition strategies…

数值分析 · 数学 2023-05-18 Qi Sun , Xuejun Xu , Haotian Yi

Surrogate neural network-based partial differential equation (PDE) solvers have the potential to solve PDEs in an accelerated manner, but they are largely limited to systems featuring fixed domain sizes, geometric layouts, and boundary…

机器学习 · 计算机科学 2025-01-10 Chenkai Mao , Robert Lupoiu , Tianxiang Dai , Mingkun Chen , Jonathan A. Fan

We study the effect of adaptive mesh refinement on a parallel domain decomposition solver of a linear system of algebraic equations. These concepts need to be combined within a parallel adaptive finite element software. A prototype…

数值分析 · 数学 2020-01-08 Pavel Kůs , Jakub Šístek

This paper was prompted by numerical experiments we performed, in which algorithms already available in the literature (DVS-BDDM) yielded accelerations (or speedups) many times larger (more than seventy in some examples already treated, but…

计算工程、金融与科学 · 计算机科学 2024-12-20 Ismael Herrera-Revilla , Iván Contreras , Graciela S. Herrera

Dynamic mode decomposition (DMD) is a recently developed tool for the analysis of the behavior of complex dynamical systems. In this paper, we will propose an extension of DMD that exploits low-rank tensor decompositions of potentially…

数值分析 · 数学 2019-08-14 Stefan Klus , Patrick Gelß , Sebastian Peitz , Christof Schütte

Extreme learning machine (ELM) is a methodology for solving partial differential equations (PDEs) using a single hidden layer feed-forward neural network. It presets the weight/bias coefficients in the hidden layer with random values, which…

数值分析 · 数学 2025-04-30 Chang-Ock Lee , Youngkyu Lee , Byungeun Ryoo

We introduce an adaptive element-based domain decomposition (DD) method for solving saddle point problems defined as a block two by two matrix. The algorithm does not require any knowledge of the constrained space. We assume that all sub…

分布式、并行与集群计算 · 计算机科学 2021-12-24 Frédéric Nataf , Pierre-Henri Tournier