A New Dual-Mode GEP Prediction Algorithm Based on Irregularity and Similar Period

Table 5

Sunspot GEP-IPM-SPM comparative test data conclusion.

	Expected accuracy	MAPE	MSE mean	R^2 mean
DM_GEP	0.2	16.27	270.459	0.9443
BP-ANN	0.2	160	2436.504	0.39
ARIMA	—	46.69	503.012	0.898