Table 6 Outstanding performance by the WIO-SVR model.

Statistical indices		Intelligent prediction model					Accuracy change by WIO-SVR model
Statistical indices		WIO-SVR	SVR	RF	M5P	REPTree	SVR	RF	M5P	REPTree
RMSE (kWh)	Average	2.02	10.95	16.27	17.73	26.44	442.0^a	705.0^a	777.4^a	1207.9^a
RMSE (kWh)	Std. dev	1.10	10.24	15.59	15.84	20.43
MAE (kWh)	Average	5.25	7.55	11.33	12.29	17.77	43.7^c	115.6^a	134.0^a	238.2^a
MAE (kWh)	Std. dev	4.61	6.82	10.30	10.27	15.02
MAPE (%)	Average	15.5	26.2	46.4	45.3	78.7	69.1^a	199.3^a	192.4^a	407.8^a
MAPE (%)	Std. dev	8.0	15.1	38.0	28.9	79.0
R	Average	0.90	0.86	0.84	0.74	0.69	4.3^b	6.0^a	17.4^a	22.9^a
R	Std. dev	0.05	0.12	0.16	0.16	0.24

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