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math.NA2025
An Optimal Weighted Least-Squares Method for Operator Learning
John Turnage, Matthew Lowery, John Jakeman +3
We consider the problem of learning an unknown, possibly nonlinear operator between separable Hilbert spaces from supervised data. Inputs are drawn from a prescribed probability me…
math.NA2019★ 13 cited
A Method for Dimensionally Adaptive Sparse Trigonometric Interpolation of Periodic Functions
Zack Morrow, Miroslav Stoyanov
We present a method for dimensionally adaptive sparse trigonometric interpolation of multidimensional periodic functions belonging to a smoothness class of finite order. This metho…