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Enhancing Convergence Speed with Feature-Enforcing Physics-Informed Neural Networks: Utilizing Boundary Conditions as Prior Knowledge for Faster Convergence
April 9, 2024, 4:43 a.m. | Mahyar Jahaninasab, Mohamad Ali Bijarchi
cs.LG updates on arXiv.org arxiv.org
Abstract: This study introduces an accelerated training method for Vanilla Physics-Informed-Neural-Networks (PINN) addressing three factors that imbalance the loss function: initial weight state of a neural network, domain to boundary points ratio, and loss weighting factor. We propose a novel two-stage training method. During the initial stage, we create a unique loss function using a subset of boundary conditions and partial differential equation terms. Furthermore, we introduce preprocessing procedures that aim to decrease the variance during …
abstract arxiv convergence cs.lg domain faster feature function knowledge loss network networks neural network neural networks physics physics-informed pinn prior speed state study training type
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