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We have developed a convolutional neural network (CNN) to reconstruct the shape of irregular rough particles from their interferometric images. The CNN is based on a UNET architecture with residual block modules. The database has been…

计算机视觉与模式识别 · 计算机科学 2024-08-08 Alexis Abad , Alexandre Poux , Alexis Boulet , Marc Brunel

Two models based on convolutional neural networks are trained to predict the two-dimensional velocity-fluctuation fields at different wall-normal locations in a turbulent open channel flow, using the wall-shear-stress components and the…

流体动力学 · 物理学 2020-06-23 L. Guastoni , A. Güemes , A. Ianiro , S. Discetti , P. Schlatter , H. Azizpour , R. Vinuesa

In recent years, Convolutional Neural Networks (CNN) have proven to be efficient analysis tools for processing point clouds, e.g., for reconstruction, segmentation and classification. In this paper, we focus on the classification of edges…

A local artificial neural network (LANN) framework is developed for turbulence modeling. The Reynolds-averaged Navier-Stokes (RANS) unclosed terms are reconstructed by artificial neural network (ANN) based on the local coordinate system…

流体动力学 · 物理学 2021-09-08 Chenyue Xie , Xiangming Xiong , Jianchun Wang

Turbulence Models represent the workhorse for simulations used in engineering design and analysis. Despite their low computational cost and robustness, these models suffer from substantial predictive uncertainty, most of which is epistemic.…

流体动力学 · 物理学 2025-09-05 Minghan Chu , Weicheng Qian

Computational color constancy that requires esti- mation of illuminant colors of images is a fundamental yet active problem in computer vision, which can be formulated into a regression problem. To learn a robust regressor for color…

计算机视觉与模式识别 · 计算机科学 2016-08-12 Yanlin Qian , Ke Chen , Joni-Kristian Kamarainen , Jarno Nikkanen , Jiri Matas

Convolutional Neural Networks (CNN) are state-of-the-art models for many image classification tasks. However, to recognize cancer subtypes automatically, training a CNN on gigapixel resolution Whole Slide Tissue Images (WSI) is currently…

计算机视觉与模式识别 · 计算机科学 2016-03-10 Le Hou , Dimitris Samaras , Tahsin M. Kurc , Yi Gao , James E. Davis , Joel H. Saltz

Artificial neural network (ANN) is tested as a tool for finding a new subgrid model of the subgrid-scale (SGS) stress in large-eddy simulation. ANN is used to establish a functional relation between the grid-scale (GS) flow field and the…

流体动力学 · 物理学 2017-05-10 Masataka Gamahara , Yuji Hattori

In this paper, we trialled different methods of data preparation for Convolutional Neural Network (CNN) training and semantic segmentation of land use land cover (LULC) features within aerial photography over the Wet Tropics and Atherton…

计算机视觉与模式识别 · 计算机科学 2023-08-15 Andrew Clark , Stuart Phinn , Peter Scarth

In the field of visual ego-motion estimation for Micro Air Vehicles (MAVs), fast maneuvers stay challenging mainly because of the big visual disparity and motion blur. In the pursuit of higher robustness, we study convolutional neural…

计算机视觉与模式识别 · 计算机科学 2022-08-31 Yingfu Xu , Guido C. H. E. de Croon

The highly non-linear nature of deep neural networks causes them to be susceptible to adversarial examples and have unstable gradients which hinders interpretability. However, existing methods to solve these issues, such as adversarial…

机器学习 · 计算机科学 2023-01-11 Suraj Srinivas , Kyle Matoba , Himabindu Lakkaraju , Francois Fleuret

Recently, many view-based 3D model retrieval methods have been proposed and have achieved state-of-the-art performance. Most of these methods focus on extracting more discriminative view-level features and effectively aggregating the…

计算机视觉与模式识别 · 计算机科学 2021-09-28 Zan Gao , Yuxiang Shao , Weili Guan , Meng Liu , Zhiyong Cheng , Shengyong Chen

This paper presents an adaptive convolutional neural network (CNN) architecture that can automate diverse topology optimization (TO) problems having different underlying physics. The architecture uses the encoder-decoder networks with dense…

计算工程、金融与科学 · 计算机科学 2025-09-10 Khaish Singh Chadha , Prabhat Kumar

Complex organic molecules (COMs) are observed to be abundant in various astrophysical environments, in particular toward star forming regions they are observed both toward protostellar envelopes as well as shocked regions. Emission spectrum…

天体物理仪器与方法 · 物理学 2026-01-14 Nina Kessler , Timea Csengeri , David Cornu , Sylvain Bontemps , Laure Bouscasse

We present a general and flexible approximation model for near real-time prediction of steady turbulent flow in a 3D domain based on residual Convolutional Neural Networks (CNNs). This approach can provide immediate feedback for real-time…

图形学 · 计算机科学 2019-12-05 Josef Musil , Jakub Knir , Athanasios Vitsas , Irene Gallou

Traffic speed prediction is a critically important component of intelligent transportation systems (ITS). Recently, with the rapid development of deep learning and transportation data science, a growing body of new traffic speed prediction…

机器学习 · 计算机科学 2019-03-06 Ruimin Ke , Wan Li , Zhiyong Cui , Yinhai Wang

Effective decision making requires understanding the uncertainty inherent in a prediction. In regression, this uncertainty can be estimated by a variety of methods; however, many of these methods are laborious to tune, generate…

机器学习 · 统计学 2021-12-02 Tianhui Zhou , Yitong Li , Yuan Wu , David Carlson

Machine learning algorithms provide a new perspective on the study of physical phenomena. In this paper, we explore the nature of quantum phase transitions using multi-color convolutional neural-network (CNN) in combination with quantum…

无序系统与神经网络 · 物理学 2019-03-27 Xiao-Yu Dong , Frank Pollmann , Xue-Feng Zhang

Irregularly sampled multivariate time series are ubiquitous in several application domains, leading to sparse, not fully-observed and non-aligned observations across different variables. Standard sequential neural network architectures,…

机器学习 · 计算机科学 2023-08-10 Chrysoula Kosma , Giannis Nikolentzos , Michalis Vazirgiannis

Predicting trajectories of pedestrians is quintessential for autonomous robots which share the same environment with humans. In order to effectively and safely interact with humans, trajectory prediction needs to be both precise and…

计算机视觉与模式识别 · 计算机科学 2018-11-27 Nishant Nikhil , Brendan Tran Morris