Wind Power Installed Capacity Forecast Based on a Two-Parameter Variable-Weight Buffer Operator and Subsidy Strategy Research

Table 4

Computational results of each evaluation metric in case study.

Error	GM (1,1)	AWBO-GM (1,1)	2-VWBO-GM (1,1)
Training set
RMSE	4.90	0.40	4.60
MAE	4.17	0.33	3.61
MAPE (%)	27.13	0.62	9.61
Test set
RMSE	93.44	8.54	4.39
MAE	83.15	9.79	3.16
MAPE (%)	70.26	7.23	2.58