Search Results for author: Jihun Han

Found 7 papers, 0 papers with code

Stochastic approach for elliptic problems in perforated domains

no code implementations18 Mar 2024 Jihun Han, Yoonsang Lee

We propose a neural network-based mesh-free approach for perforated domain problems.

Learning In-between Imagery Dynamics via Physical Latent Spaces

no code implementations14 Oct 2023 Jihun Han, Yoonsang Lee, Anne Gelb

We present a framework designed to learn the underlying dynamics between two images observed at consecutive time steps.

An analysis of the derivative-free loss method for solving PDEs

no code implementations28 Sep 2023 Jihun Han, Yoonsang Lee

This study analyzes the derivative-free loss method to solve a certain class of elliptic PDEs using neural networks.

Computational Efficiency

Energy-Efficient Driving in Connected Corridors via Minimum Principle Control: Vehicle-in-the-Loop Experimental Verification in Mixed Fleets

no code implementations17 Nov 2022 Tyler Ard, Longxiang Guo, Jihun Han, Yunyi Jia, Ardalan Vahidi, Dominik Karbowski

Up to 36% fuel savings are measured with the proposed control approach over a human-modelled driver, and it was found connectivity in the automation approach improved fuel economy by up to 26% over automation without.

A Neural Network Approach for Homogenization of Multiscale Problems

no code implementations4 Jun 2022 Jihun Han, Yoonsang Lee

Compared with other network-based approaches for multiscale problems, the proposed method is free from the design of hand-crafted neural network architecture and the cell problem to calculate the homogenization coefficient.

Hierarchical Learning to Solve Partial Differential Equations Using Physics-Informed Neural Networks

no code implementations2 Dec 2021 Jihun Han, Yoonsang Lee

In this work, we propose a hierarchical approach to improve the convergence rate and accuracy of the neural network solution to partial differential equations.

A Derivative-Free Method for Solving Elliptic Partial Differential Equations with Deep Neural Networks

no code implementations17 Jan 2020 Jihun Han, Mihai Nica, Adam R Stinchcombe

We introduce a deep neural network based method for solving a class of elliptic partial differential equations.

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