Table 2.

Comparison of three SVM Gaussian kernels used in our studies.

Kernel Function	Recommended Kernel Scale	Model Description
Fine Gaussian SVM	$\sqrt{p/4}$	Very detailed distinctions between the classes. Could cause overfitting of the model if used erroneously
Medium Gaussian SVM	$\sqrt{p}$	Medium level distinctions between the classes.
Coarse Gaussian SVM	$4\sqrt{p}$	Coarse distinctions between the classes. Could cause underfitting of the model if used erroneously.