jaxopt.projection.projection_l1_sphere
- jaxopt.projection.projection_l1_sphere(x, value=1.0)[source]
Projection onto the l1 sphere:
\[\underset{y}{\text{argmin}} ~ ||x - y||_2^2 \quad \textrm{subject to} \quad ||y||_1 = \text{value}\]- Parameters
x (
Array) – array to project.value (
float) – radius of the sphere.
- Return type
Array- Returns
output array, with the same shape as
x.