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相关论文: A Flow-rate-conserving CNN-based Domain Decomposit…

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Training deep neural networks at scale can benefit from domain decomposition, where the network is split into subdomains trained in parallel and coupled by a global trust-region mechanism. Building on the Additively Preconditioned…

最优化与控制 · 数学 2026-05-15 Andrea Angino , Bindi Çapriqi , Shega Likaj , Ken Trotti , Rolf Krause

Microfluidics have shown great promise in multiple applications, especially in biomedical diagnostics and separations. While the flow properties of these microfluidic devices can be solved by numerical methods such as computational fluid…

流体动力学 · 物理学 2021-05-12 Quang Tuyen Le , Pao-Hsiung Chiu , Chin Chun Ooi

Convolutional neural network (CNN)-based image denoising methods have been widely studied recently, because of their high-speed processing capability and good visual quality. However, most of the existing CNN-based denoisers learn the image…

图像与视频处理 · 电气工程与系统科学 2020-06-30 Rui Zhao , Kin-Man Lam , Daniel P. K. Lun

Speed-of-sound has been shown as a potential biomarker for breast cancer imaging, successfully differentiating malignant tumors from benign ones. Speed-of-sound images can be reconstructed from time-of-flight measurements from ultrasound…

图像与视频处理 · 电气工程与系统科学 2020-07-23 Melanie Bernhardt , Valery Vishnevskiy , Richard Rau , Orcun Goksel

The theory-guided convolutional neural network (TgCNN) framework, which can incorporate discretized governing equation residuals into the training of convolutional neural networks (CNNs), is extended to two-phase porous media flow problems…

地球物理 · 物理学 2022-08-15 Nanzhe Wang , Haibin Chang , Dongxiao Zhang

The selective frequency damping (SFD) method is an alternative to classical Newton's method to obtain unstable steady-state solutions of dynamical systems. However this method has two main limitations: it does not converge for arbitrary…

流体动力学 · 物理学 2015-10-28 Bastien E. Jordi , Colin J. Cotter , Spencer J. Sherwin

Deep neural networks (DNNs) are widely used as surrogate models in geophysical applications; incorporating theoretical guidance into DNNs has improved the generalizability. However, most of such approaches define the loss function based on…

机器学习 · 计算机科学 2021-09-28 Rui Xu , Dongxiao Zhang , Miao Rong , Nanzhe Wang

The purpose of this work is the development of an artificial neural network (ANN) for surrogate modeling of the mechanical response of viscoplastic grain microstructures. To this end, a U-Net-based convolutional neural network (CNN) is…

Parametric reduced-order modelling often serves as a surrogate method for hemodynamics simulations to improve the computational efficiency in many-query scenarios or to perform real-time simulations. However, the snapshots of the method…

计算工程、金融与科学 · 计算机科学 2023-10-24 Dongwei Ye , Valeria Krzhizhanovskaya , Alfons G. Hoekstra

Accurate medical image segmentation especially for echocardiographic images with unmissable noise requires elaborate network design. Compared with manual design, Neural Architecture Search (NAS) realizes better segmentation results due to…

图像与视频处理 · 电气工程与系统科学 2023-12-29 Renqi Chen , Jingjing Luo , Fan Nian , Yuhui Cen , Yiheng Peng , Zekuan Yu

Data assimilation in subsurface flow systems is challenging due to the large number of flow simulations often required, and by the need to preserve geological realism in the calibrated (posterior) models. In this work we present a…

计算物理 · 物理学 2021-02-03 Meng Tang , Yimin Liu , Louis J. Durlofsky

Given a scene, what is going to move, and in what direction will it move? Such a question could be considered a non-semantic form of action prediction. In this work, we present a convolutional neural network (CNN) based approach for motion…

计算机视觉与模式识别 · 计算机科学 2015-12-18 Jacob Walker , Abhinav Gupta , Martial Hebert

Subsurface simulations use computational models to predict the flow of fluids (e.g., oil, water, gas) through porous media. These simulations are pivotal in industrial applications such as petroleum production, where fast and accurate…

A convolutional neural network (CNN) architecture is developed to improve the pulse shape discrimination (PSD) power of the gadolinium-loaded organic liquid scintillation detector to reduce the fast neutron background in the inverse beta…

We introduce Universal Solution Manifold Network (USM-Net), a novel surrogate model, based on Artificial Neural Networks (ANNs), which applies to differential problems whose solution depends on physical and geometrical parameters. Our…

数值分析 · 数学 2022-04-19 Francesco Regazzoni , Stefano Pagani , Alfio Quarteroni

Deep convolutional neural networks (CNNs) have delivered superior performance in many computer vision tasks. In this paper, we propose a novel deep fully convolutional network model for accurate salient object detection. The key…

计算机视觉与模式识别 · 计算机科学 2017-08-08 Pingping Zhang , Dong Wang , Huchuan Lu , Hongyu Wang , Baocai Yin

Phase unwrapping is a classical ill-posed problem which aims to recover the true phase from wrapped phase. In this paper, we introduce a novel Convolutional Neural Network (CNN) that incorporates a Spatial Quad-Directional Long Short Term…

机器学习 · 计算机科学 2020-10-27 Malsha V. Perera , Ashwin De Silva

We present a scalable framework for learning deterministic and probabilistic neural surrogates for high-resolution 3D physics simulations. We introduce a hybrid CNN-Transformer backbone architecture targeted for 3D physics simulations,…

机器学习 · 计算机科学 2025-10-09 Benjamin Holzschuh , Georg Kohl , Florian Redinger , Nils Thuerey

This paper proposes a domain decomposition subspace neural network method for efficiently solving linear and nonlinear partial differential equations. By combining the principles of domain decomposition and subspace neural networks, the…

数值分析 · 数学 2025-05-28 Zhenxing Fu , Hongliang Liu , Zhiqiang Sheng , Baixue Xing

Characterizing blood vessels in digital images is important for the diagnosis of many types of diseases as well as for assisting current researches regarding vascular systems. The automated analysis of blood vessels typically requires the…

图像与视频处理 · 电气工程与系统科学 2023-01-12 Matheus V. da Silva , Julie Ouellette , Baptiste Lacoste , Cesar H. Comin