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Efficient and accurate load flow calculations are a bedrock of modern power system operation. Classical numerical methods such as the Newton-Raphson algorithm provide highly precise results but are computationally demanding, which limits…

系统与控制 · 电气工程与系统科学 2026-02-24 Timon Conrad , Changhun Kim , Johann Jäger , Andreas Maier , Siming Bayer

Neural networks are increasingly used in complex (data-driven) simulations as surrogates or for accelerating the computation of classical surrogates. In many applications physical constraints, such as mass or energy conservation, must be…

计算物理 · 物理学 2020-02-25 Jim Magiera , Deep Ray , Jan S. Hesthaven , Christian Rohde

The Transformer model has achieved state-of-the-art performance in many sequence modeling tasks. However, how to leverage model capacity with large or variable depths is still an open challenge. We present a probabilistic framework to…

计算与语言 · 计算机科学 2020-10-19 Xian Li , Asa Cooper Stickland , Yuqing Tang , Xiang Kong

Structural and topological information play a key role in modeling flow and transport through fractured rock in the subsurface. Discrete fracture network (DFN) computational suites such as dfnWorks are designed to simulate flow and…

The usage of neural networks (NNs) for flow reconstruction (FR) tasks from a limited number of sensors is attracting strong research interest, owing to NNs' ability to replicate high dimensional relationships. Trained on a single flow case…

流体动力学 · 物理学 2024-06-19 Ali Girayhan Özbay , Sylvain Laizet

Based on its great successes in inference and denosing tasks, Dictionary Learning (DL) and its related sparse optimization formulations have garnered a lot of research interest. While most solutions have focused on single layer…

机器学习 · 计算机科学 2021-04-22 Wen Tang , Emilie Chouzenoux , Jean-Christophe Pesquet , Hamid Krim

Real-time simulation of elastic structures is essential in many applications, from computer-guided surgical interventions to interactive design in mechanical engineering. The Finite Element Method is often used as the numerical method of…

机器学习 · 计算机科学 2021-09-21 Alban Odot , Ryadh Haferssas , Stéphane Cotin

Thermal fluid processes are inherently multi-physics and multi-scale, involving mass-momentum-energy transport phenomena. Thermal fluid simulation (TFS) is based on solving conservative equations, for which - except for "first-principle"…

流体动力学 · 物理学 2018-11-07 Chih-Wei Chang , Nam T. Dinh

State-of-the-art image segmentation algorithms generally consist of at least two successive and distinct computations: a boundary detection process that uses local image information to classify image locations as boundaries between objects,…

计算机视觉与模式识别 · 计算机科学 2016-11-03 Michał Januszewski , Jeremy Maitin-Shepard , Peter Li , Jörgen Kornfeld , Winfried Denk , Viren Jain

An ongoing challenge in neural information processing is: how do neurons adjust their connectivity to improve task performance over time (i.e., actualize learning)? It is widely believed that there is a consistent, synaptic-level learning…

神经与进化计算 · 计算机科学 2021-06-01 Aman Bhargava , Mohammad R. Rezaei , Milad Lankarany

Modern deep learning architectures are ordinarily performed on high-performance computing facilities due to the large size of the input features and complexity of its model. This paper proposes traditional multilayer perceptrons (MLP) with…

音频与语音处理 · 电气工程与系统科学 2022-09-28 Bagus Tris Atmaja , Masato Akagi

Shallow water equations are the foundation of most models for flooding and river hydraulics analysis. These physics-based models are usually expensive and slow to run, thus not suitable for real-time prediction or parameter inversion. An…

流体动力学 · 物理学 2021-12-22 Yalan Song , Chaopeng Shen , Xiaofeng Liu

The Trapped Gyro-Landau Fluid (TGLF) model provides fast, accurate predictions of turbulent transport in tokamaks, but whole device simulations requiring thousands of evaluations remain computationally expensive. Neural network (NN)…

Traditional fluid flow predictions require large computational resources. Despite recent progress in parallel and GPU computing, the ability to run fluid flow predictions in real-time is often infeasible. Recently developed machine learning…

流体动力学 · 物理学 2021-06-08 Y. van Halder , B. Sanderse , B. Koren

We present a partitioned neural network-based framework for learning of fluid-structure interaction (FSI) problems. We decompose the simulation domain into two smaller sub-domains, i.e., fluid and solid domains, and incorporate an…

计算工程、金融与科学 · 计算机科学 2021-05-17 Amin Totounferoush , Axel Schumacher , Miriam Schulte

Subspace clustering has been extensively studied from the hypothesis-and-test, algebraic, and spectral clustering based perspectives. Most assume that only a single type/class of subspace is present. Generalizations to multiple types are…

计算机视觉与模式识别 · 计算机科学 2019-04-04 Xun Xu , Loong-Fah Cheong , Zhuwen Li

Decentralized federated learning (DFL) uses peer-to-peer communication to avoid the single point of failure problem in federated learning and has been considered an attractive solution for machine learning tasks on distributed devices. We…

分布式、并行与集群计算 · 计算机科学 2024-09-10 Yifan Hua , Jinlong Pang , Xiaoxue Zhang , Yi Liu , Xiaofeng Shi , Bao Wang , Yang Liu , Chen Qian

The tremendous recent progress in analyzing the training dynamics of overparameterized neural networks has primarily focused on wide networks and therefore does not sufficiently address the role of depth in deep learning. In this work, we…

机器学习 · 计算机科学 2022-06-29 Jongmin Lee , Joo Young Choi , Ernest K. Ryu , Albert No

We present a new hybrid physics-based machine-learning approach to reservoir modeling. The methodology relies on a series of deep adversarial neural network architecture with physics-based regularization. The network is used to simulate the…

机器学习 · 统计学 2020-01-16 Cedric G. Fraces , Adrien Papaioannou , Hamdi Tchelepi

Fluid motion can be considered as a point cloud transformation when using the SPH method. Compared to traditional numerical analysis methods, using machine learning techniques to learn physics simulations can achieve near-accurate results,…

计算机视觉与模式识别 · 计算机科学 2024-04-19 Yu Chen , Shuai Zheng , Menglong Jin , Yan Chang , Nianyi Wang