Operator-informed initialization for Fourier features physics-informed neural networks
Physics-Informed Neural Networks (PINNs) typically exhibit spectral bias, where some frequencies of the target function converge more slowly than others. In this work, we analyze the training dynamics of Fourier Feature PINNs in the Neural Tangent Kernel regime to address this limitation. We derive an explicit evolutio...
Juan Molina, P. Perdikaris, Mircea Petrache et al.
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