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In astrophysical simulations, nuclear reacting flows pose computational challenges due to the stiffness of reaction networks. We introduce neural network-based surrogate models using the DeePODE framework to enhance simulation efficiency…

天体物理仪器与方法 · 物理学 2025-10-14 Xiaoyu Zhang , Yuxiao Yi , Lile Wang , Zhi-Qin John Xu , Tianhan Zhang , Yao Zhou

In recent years, supervised learning with convolutional networks (CNNs) has seen huge adoption in computer vision applications. Comparatively, unsupervised learning with CNNs has received less attention. In this work we hope to help bridge…

机器学习 · 计算机科学 2016-01-11 Alec Radford , Luke Metz , Soumith Chintala

Convolutional Neural Networks (CNNs) work very well for supervised learning problems when the training dataset is representative of the variations expected to be encountered at test time. In medical image segmentation, this premise is…

图像与视频处理 · 电气工程与系统科学 2021-01-26 Neerav Karani , Ertunc Erdil , Krishna Chaitanya , Ender Konukoglu

Simulating the mechanical response of advanced materials can be done more accurately using concurrent multiscale models than with single-scale simulations. However, the computational costs stand in the way of the practical application of…

机器学习 · 计算机科学 2024-02-21 J. Storm , I. B. C. M. Rocha , F. P. van der Meer

Deep convolutional neural networks have achieved great success in various applications. However, training an effective DNN model for a specific task is rather challenging because it requires a prior knowledge or experience to design the…

机器学习 · 计算机科学 2018-06-06 Sheng-Jun Huang , Jia-Wei Zhao , Zhao-Yang Liu

In particle physics the simulation of particle transport through detectors requires an enormous amount of computational resources, utilizing more than 50% of the resources of the CERN Worldwide Large Hadron Collider Grid. This challenge has…

高能物理 - 实验 · 物理学 2021-03-26 Florian Rehm , Sofia Vallecorsa , Kerstin Borras , Dirk Krücker

Evolutionary algorithms are increasingly recognised as a viable computational approach for the automated optimisation of deep neural networks (DNNs) within artificial intelligence. This method extends to the training of DNNs, an approach…

神经与进化计算 · 计算机科学 2024-03-29 Fergal Stapleton , Brendan Cody-Kenny , Edgar Galván

In the problem of domain transfer learning, we learn a model for the predic-tion in a target domain from the data of both some source domains and the target domain, where the target domain is in lack of labels while the source domain has…

计算机视觉与模式识别 · 计算机科学 2018-05-21 Guohui Zhang , Gaoyuan Liang , Fang Su , Fanxin Qu , Jing-Yan Wang

Monte Carlo simulations are commonly used to calculate photon reflectance, absorptance, and transmittance of multi-layer scattering and absorbing media, but they can quickly become prohibitively expensive as the number of layers increases.…

光学 · 物理学 2025-09-30 Daniel Carne , Ziqi Guo , Xiulin Ruan

In the last decade, Convolutional Neural Network with a multi-layer architecture has advanced rapidly. However, training its complex network is very space-consuming, since a lot of intermediate data are preserved across layers, especially…

分布式、并行与集群计算 · 计算机科学 2024-01-23 Zhigang Wang , Hangyu Yang , Ning Wang , Chuanfei Xu , Jie Nie , Zhiqiang Wei , Yu Gu , Ge Yu

We investigate a deep learning approach to efficiently perform Bayesian inference in partial differential equation (PDE) and integral equation models over potentially high-dimensional parameter spaces. The contributions of this paper are…

数值分析 · 数学 2021-03-26 Teo Deveney , Eike Mueller , Tony Shardlow

Low-dose computed tomography (CT) has attracted a major attention in the medical imaging field, since CT-associated x-ray radiation carries health risks for patients. The reduction of CT radiation dose, however, compromises the…

计算机视觉与模式识别 · 计算机科学 2019-07-16 Hongming Shan , Yi Zhang , Qingsong Yang , Uwe Kruger , Mannudeep K. Kalra , Ling Sun , Wenxiang Cong , Ge Wang

Algorithmic image-based diagnosis and prognosis of neurodegenerative diseases on longitudinal data has drawn great interest from computer vision researchers. The current state-of-the-art models for many image classification tasks are based…

计算机视觉与模式识别 · 计算机科学 2017-09-04 Jie Zhang , Qingyang Li , Richard J. Caselli , Jieping Ye , Yalin Wang

Modeling the evolution of physical systems is critical to many applications in science and engineering. As the evolution of these systems is governed by partial differential equations (PDEs), there are a number of computational simulations…

机器学习 · 计算机科学 2025-03-17 Bharat Srikishan , Daniel O'Malley , Mohamed Mehana , Nicholas Lubbers , Nikhil Muralidhar

Phase-field (PF) simulation provides a powerful framework for predicting microstructural evolution but suffers from prohibitive computational costs that severely limit accessible spatiotemporal scales in practical applications. While…

We propose a non-intrusive method to build surrogate models that approximate the solution of parameterized partial differential equations (PDEs), capable of taking into account the dependence of the solution on the shape of the…

数值分析 · 数学 2024-09-20 Linying Zhang , Stefano Pagani , Jun Zhang , Francesco Regazzoni

Deep neural networks (DNNs), especially deep convolutional neural networks (CNNs), have emerged as the powerful technique in various machine learning applications. However, the large model sizes of DNNs yield high demands on computation…

计算机视觉与模式识别 · 计算机科学 2019-03-01 Siyu Liao , Zhe Li , Liang Zhao , Qinru Qiu , Yanzhi Wang , Bo Yuan

This work presents a non-intrusive surrogate modeling scheme based on machine learning technology for predictive modeling of complex systems, described by parametrized time-dependent PDEs. For these problems, typical finite element…

数值分析 · 数学 2021-04-26 Stefanos Nikolopoulos , Ioannis Kalogeris , Vissarion Papadopoulos

Convolutional Neural Networks (CNNs) have revolutionized performances in several machine learning tasks such as image classification, object tracking, and keyword spotting. However, given that they contain a large number of parameters,…

图像与视频处理 · 电气工程与系统科学 2019-03-28 Taruna Agrawal , Rahul Gupta , Shrikanth Narayanan

Machine learning using quantum convolutional neural networks (QCNNs) has demonstrated success in both quantum and classical data classification. In previous studies, QCNNs attained a higher classification accuracy than their classical…

量子物理 · 物理学 2023-09-29 Juhyeon Kim , Joonsuk Huh , Daniel K. Park