jaxopt.projection.projection_l2_sphere

jaxopt.projection.projection_l2_sphere(x, value=1.0)[source]

Projection onto the l2 sphere:

\[\underset{y}{\text{argmin}} ~ ||x - y||_2^2 \quad \textrm{subject to} \quad ||y||_2 = \text{value}\]
Parameters
  • x (Any) – pytree to project.

  • value (float) – radius of the sphere.

Return type

Any

Returns

output pytree, with the same structure as x.