Search Results for author: My Ha Dao

Found 6 papers, 1 papers with code

Generalizable Neural Physics Solvers by Baldwinian Evolution

1 code implementation6 Dec 2023 Jian Cheng Wong, Chin Chun Ooi, Abhishek Gupta, Pao-Hsiung Chiu, Joshua Shao Zheng Low, My Ha Dao, Yew-Soon Ong

Physics-informed neural networks (PINNs) are at the forefront of scientific machine learning, making possible the creation of machine intelligence that is cognizant of physical laws and able to accurately simulate them.

Meta-Learning

LSA-PINN: Linear Boundary Connectivity Loss for Solving PDEs on Complex Geometry

no code implementations3 Feb 2023 Jian Cheng Wong, Pao-Hsiung Chiu, Chinchun Ooi, My Ha Dao, Yew-Soon Ong

On the other hand, if the samples are too sparse, existing PINNs tend to overfit the near boundary region, leading to incorrect solution.

Graph Neural Network Based Surrogate Model of Physics Simulations for Geometry Design

no code implementations1 Feb 2023 Jian Cheng Wong, Chin Chun Ooi, Joyjit Chattoraj, Lucas Lestandi, Guoying Dong, Umesh Kizhakkinan, David William Rosen, Mark Hyunpong Jhon, My Ha Dao

Computational Intelligence (CI) techniques have shown great potential as a surrogate model of expensive physics simulation, with demonstrated ability to make fast predictions, albeit at the expense of accuracy in some cases.

CAN-PINN: A Fast Physics-Informed Neural Network Based on Coupled-Automatic-Numerical Differentiation Method

no code implementations29 Oct 2021 Pao-Hsiung Chiu, Jian Cheng Wong, Chinchun Ooi, My Ha Dao, Yew-Soon Ong

In this study, novel physics-informed neural network (PINN) methods for coupling neighboring support points and their derivative terms which are obtained by automatic differentiation (AD), are proposed to allow efficient training with improved accuracy.

Improved Surrogate Modeling of Fluid Dynamics with Physics-Informed Neural Networks

no code implementations5 May 2021 Jian Cheng Wong, Chinchun Ooi, Pao-Hsiung Chiu, My Ha Dao

In addition, we propose a novel transfer optimization scheme for use in such surrogate modeling scenarios and demonstrate an approximately 3x improvement in speed to convergence and an order of magnitude improvement in predictive performance over conventional Xavier initialization for training of new scenarios.

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