Preconditioning |
We solve this problem using a shifted unknown .
typical regression | |||
Define | |||
Defines | |||
Implicitly define by . | |||
You iterate for . | |||
= | from your definition | ||
= | Got the answer. |
which solves the problem never needing . Unfortunately, as we see later, this conclusion is only valid while there is no regularization.
Preconditioning |