Research on Credit Risk Measurement of Small and Micro Enterprises Based on the Integrated Algorithm of Improved GSO and ELM

Table 3

Results of 30 times independent experiments.

Function	Algorithm	Best	Worst	Mean	Var
f1	GSO	5.714551e − 05	1.357698e − 02	2.663643e − 03	8.017839e − 06
	IGSO	2.502637e − 07	1.234684e − 03	2.009736e − 04	9.760807e − 08
f2	GSO	1.420992e − 04	3.564882e − 02	7.118286e − 03	7.676224e − 05
	IGSO	7.677080e − 08	2.221346e − 03	2.191989e − 05	1.864490e − 07
f3	GSO	1.222893e − 08	5.271113e − 05	1.113159e − 05	2.846101e − 10
	IGSO	1.198294e − 08	1.188994e − 05	1.263033e − 06	1.971471e − 10
f4	GSO	2.260599e − 06	1.572854e − 04	4.585418e − 05	1.992108e − 07
	IGSO	1.717953e − 07	1.958495e − 04	2.995911e − 05	2.124073e − 08
f5	GSO	1.765632e − 06	5.699369e − 04	1.609170e − 04	2.202052e − 08
	IGSO	1.772661e − 08	1.295454e − 05	1.700449e − 05	1.248972e − 09
f6	GSO	1.369385e − 02	8.083180e − 01	1.081428e − 01	2.499092e − 02
	IGSO	1.291843e − 04	5.871926e − 01	9.933543e − 03	2.571551e − 04
f7	GSO	2.567627e − 08	3.065898e − 03	2.598793e − 04	4.499324e − 07
	IGSO	1.019086e − 07	1.821743e − 03	1.283270e − 04	1.182948e − 08
f8	GSO	1.132974e − 14	8.152062e − 08	6.449133e − 09	2.696393e − 16
	IGSO	7.456504e − 15	1.612441e − 08	2.003430e − 12	1.531690e − 17
f9	GSO	3.492894e − 02	1.771344e − 01	8.484216e − 02	9.609253e − 04
	IGSO	3.345529e − 03	2.298949e − 02	1.376466e − 02	2.255257e − 05
f10	GSO	3.418968e − 01	1.703526e + 00	8.689655e − 01	8.823356e − 01
	IGSO	1.000030e − 02	1.874430e + 00	2.203945e − 01	5.477851e − 01