Effective Estimation of Hourly Global Solar Radiation Using Machine Learning Algorithms

Table 12

Comparison of the most successful HAGSR estimation models that were developed by using MFFNNN, KNN, M5 rules, and LibSVM for both provinces.

Statistical indicators	Target provinces
	Kahramanmaras				Isparta
	MFFNN	KNN	M5 rules	LibSVM	MFFNN	KNN	M5 rules	LibSVM
RMSE	0.0508	0.0605	0.0610	0.0675	0.0536	0.0646	0.0650	0.0752
MAE	0.0341	0.0419	0.0418	0.0501	0.0352	0.0438	0.0441	0.0573
	0.9656	0.9511	0.9506	0.9394	0.9488	0.9261	0.9254	0.8995
SMAPE (%)	7.79	8.84	9.01	12.14	7.77	8.88	8.42	12.11
Data groups	GR2	GR2	GR5	GR2	GR3	GR3	GR3	GR3