priors.FourierL1

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priors.FourierL1#

class bartorch.priors.FourierL1#

Bases: Regularizer

\(\ell_1\) norm of the Fourier coefficients, \(\lambda \| F x \|_1\) (BART’s F).

Parameters:

  • axes (int or tuple of int) – Axes to transform, as indices into the image’s shape.

  • weight (float) – \(\lambda\).

  • joint_axes (int or tuple of int, default=()) – Axes along which entries are thresholded jointly.

Also has the methods and properties of Regularizer.

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