Supplementary Table 1.

Different types of support vector machine classifier and the parameters used in this study

Classification method	Kernel type	Description
Linear SVM	Linear kernel
Quadratic SVM	Polynomial kernel
Cubic SVM	Polynomial kernel
Fine Gaussian SVM	Gaussian radial basis function
Medium Gaussian SVM	Gaussian radial basis function
Course Gaussian SVM	Gaussian radial basis function

f is the kernel function, x_i and x_j are the input feature vectors and σ is kernel parameter. SVM – Support vector machine