Table 3.

Performance results before and after filtering outliers.

#	Model	All data		After removing outliers
		RMSE	MAE	RMSE	MAE
1	OLS	5.409	4.240	5.264	4.112
2	SGL	5.347	4.162	5.265	4.071
3	GPR	5.274	4.151	5.139	4.033
4	RVR	5.368	4.213	5.179	4.063
5	DNN	5.378	4.181	5.160	4.022