Table 3 Comparison of the classification effects of the four kernel functions
From: A credit risk assessment model based on SVM for small and medium enterprises in supply chain finance
Categories of function | Iterations | Minimum value by quadratic programming | Decision of function bias b | nSV | nBSV |
|---|---|---|---|---|---|
Linear function | 205 | −20.090207 | 3.858766 | 35 | 21 |
Polynomial function | 34 | −58.834065 | −0.810486 | 62 | 59 |
Radial basis function | 48 | −45.700202 | −0.200129 | 62 | 54 |
Sigmoid kernel function | 35 | −52.498549 | 0.482414 | 62 | 58 |