Search Results for author: Zhongqiang Zhang

Found 5 papers, 1 papers with code

Two-scale Neural Networks for Partial Differential Equations with Small Parameters

no code implementations27 Feb 2024 Qiao Zhuang, Chris Ziyi Yao, Zhongqiang Zhang, George Em Karniadakis

We propose a two-scale neural network method for solving partial differential equations (PDEs) with small parameters using physics-informed neural networks (PINNs).

Score-Based Physics-Informed Neural Networks for High-Dimensional Fokker-Planck Equations

no code implementations12 Feb 2024 Zheyuan Hu, Zhongqiang Zhang, George Em Karniadakis, Kenji Kawaguchi

The score function, defined as the gradient of the LL, plays a fundamental role in inferring LL and PDF and enables fast SDE sampling.

Peridynamic Neural Operators: A Data-Driven Nonlocal Constitutive Model for Complex Material Responses

no code implementations11 Jan 2024 Siavash Jafarzadeh, Stewart Silling, Ning Liu, Zhongqiang Zhang, Yue Yu

In this work, we introduce a novel integral neural operator architecture called the Peridynamic Neural Operator (PNO) that learns a nonlocal constitutive law from data.

hp-VPINNs: Variational Physics-Informed Neural Networks With Domain Decomposition

1 code implementation11 Mar 2020 Ehsan Kharazmi, Zhongqiang Zhang, George Em. Karniadakis

We formulate a general framework for hp-variational physics-informed neural networks (hp-VPINNs) based on the nonlinear approximation of shallow and deep neural networks and hp-refinement via domain decomposition and projection onto space of high-order polynomials.

Knowledge-guided Semantic Computing Network

no code implementations29 Sep 2018 Guangming Shi, Zhongqiang Zhang, Dahua Gao, Xuemei Xie, Yihao Feng, Xinrui Ma, Danhua Liu

Besides, to enhance the recognition ability of the semantic tree in aspects of the diversity, randomicity and variability, we use the traditional neural network to aid the semantic tree to learn some indescribable features.

Adversarial Robustness Object Recognition

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