Table 2.

The performance of support vector machine models with four kernel functions for the Classification I and Classification II

Model	Area under the curve
	Linear	Polynomial	Radial basis function	Sigmoid
Classification Scheme I*	0.8332	0.7655	0.8347**	0.8341
Classification Scheme II*	0.7318*	0.6673	0.7259	0.7273

* see Table 1 for the definitions of Classification Schemes I and II

**Best performance