Springe zum Hauptinhalt
Fabian Taubert
Software
Fabian Taubert 

Software

Nonlinear approximation in bounded orthonormal product bases (NABOPB)

The Python implementation of a dimension-incremental algorithm used for sparse function approximation based on rank-1 lattice sampling. The repository also includes the application of this method to (discrete) operator learning of differential equations.

For further details, please read
  • Lutz Kämmerer, Daniel Potts und Fabian Taubert.
    Nonlinear approximation in bounded orthonormal product bases.
    Sampling Theory, Signal Processing, and Data Analysis, 21, Article number: 19, 2023.
    [ pdf ]
  • Daniel Potts und Fabian Taubert.
    An approach to discrete operator learning based on sparse high-dimensional approximation.
    arXiv preprint, 2025.
    [ pdf ]
Download
GitHub

uniform sparse FFT (usFFT)

A collection of MATLAB routines for computing the uniform sparse fast Fourier transform based on random rank-1 lattices in a dimension incremental way.

For further details, please read
  • Lutz Kämmerer, Daniel Potts und Fabian Taubert.
    The uniform sparse FFT with application to PDEs with random coefficients.
    Sampling Theory, Signal Processing, and Data Analysis, 20, Article number: 19, 2022.
    [ pdf ]
Download
uniformSFFT-0.1.0