nlop.SmoothAbs

class bartorch.nlop.SmoothAbs

Bases: NonlinearOperator

Elementwise sqrt(|x|^2 + eps), BART’s smo_abs.

Parameters:

• shape (tuple of int) – Domain and codomain, C order.

• eps (float, default=1e-12) – Offset that keeps the derivative finite at zero.

Also has the methods and properties of NonlinearOperator.