Predicting Ink Transfer Rate of 3D Additive Printing Using EGBO Optimized Least Squares Support Vector Machine Model

Table 4

Comparative results of various methods averaged over 20 runs.

Phase	Metrics	EGBO-LSSVM		BPANN		MARS		RegTree
		Mean	Std	Mean	Std	Mean	Std	Mean	Std
Training	RMSE	0.0047	0.04	0.0110	0.53	0.0073	0.12	0.0088	0.19
	MAPE (%)	1.0247	0.45	3.7913	7.82	2.1734	2.11	3.1429	2.82
	R^2	0.9470	0.03	0.7908	0.06	0.8982	0.03	0.8591	0.03
Testing	RMSE	0.0066	0.42	0.0097	0.67	0.0080	0.61	0.0084	0.75
	MAPE (%)	1.6502	2.83	2.3631	5.28	2.0296	4.17	2.0915	5.41
	R^2	0.8476	0.14	0.7467	0.16	0.7941	0.14	0.7563	0.21