Optimize Parameters (Quadratic) applies a linear optimization onto the problem. The implementation is similar to

Newton's Method.

As a sidenote, even though the dialog allows you to define stepsizes etc., they are ignored by the algorithm - it only uses min and max values for each parameter.

The operator could be used to optimize C and gamma for the SVM, but it tends to get caught in local optima instead of finding the global optimum.

Best regards,

Marius