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Discretization Error of Fourier Neural Operators
May 6, 2024, 4:43 a.m. | Samuel Lanthaler, Andrew M. Stuart, Margaret Trautner
cs.LG updates on arXiv.org arxiv.org
Abstract: Operator learning is a variant of machine learning that is designed to approximate maps between function spaces from data. The Fourier Neural Operator (FNO) is a common model architecture used for operator learning. The FNO combines pointwise linear and nonlinear operations in physical space with pointwise linear operations in Fourier space, leading to a parameterized map acting between function spaces. Although FNOs formally involve convolutions of functions on a continuum, in practice the computations are …
abstract architecture arxiv cs.lg cs.na data error fourier function linear machine machine learning maps math.na operations operators space spaces type
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