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TGPT-PINN: Nonlinear model reduction with transformed GPT-PINNs
March 7, 2024, 5:42 a.m. | Yanlai Chen, Yajie Ji, Akil Narayan, Zhenli Xu
cs.LG updates on arXiv.org arxiv.org
Abstract: We introduce the Transformed Generative Pre-Trained Physics-Informed Neural Networks (TGPT-PINN) for accomplishing nonlinear model order reduction (MOR) of transport-dominated partial differential equations in an MOR-integrating PINNs framework. Building on the recent development of the GPT-PINN that is a network-of-networks design achieving snapshot-based model reduction, we design and test a novel paradigm for nonlinear model reduction that can effectively tackle problems with parameter-dependent discontinuities. Through incorporation of a shock-capturing loss function component as well as a …
abstract arxiv building cs.lg cs.na design development differential framework generative gpt math.na network networks neural networks nonlinear model physics physics-informed pinn test transport type
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