tfmri.convex.ConvexFunctionAffineMappingComposition

class ConvexFunctionAffineMappingComposition(function, operator=None, constant=None, scale=None, name=None)

Bases: tensorflow_mri.python.ops.convex_ops.ConvexFunction

Composes a convex function and an affine mapping.

Represents \(f(Ax + b)\), where \(f\) is a ConvexFunction, \(A\) is a LinearOperator and \(b\) is a constant Tensor.

Parameters

• function – A ConvexFunction.

• operator – A LinearOperator. Defaults to the identity.

• constant – A Tensor. Defaults to 0.

• scale – A float. A scaling factor.

• name – A name for this operation.

Initialize this ConvexFunction.