Multistep Wind Speed Forecasting Based on Wavelet and Gaussian Processes

Table 3

Comparison of forecast accuracy for mean daily wind speed.

	Number of forecasting steps (day)
	1	2	3	Average
RMSE (m/s)
Persistence	1.6069	2.2461	2.2985	2.0505
MLP	2.2651	2.5642	2.4331	2.4208
GP	1.9024	2.1317	2.0892	2.0411
W-GP	1.6110	2.0241	2.0421	1.8924
MAE (m/s)
Persistence	1.2979	1.8150	1.8368	1.6499
MLP	1.6953	1.9832	2.0775	1.9187
GP	1.4838	1.7028	1.7227	1.6364
W-GP	1.2775	1.6355	1.6357	1.5162
MAPE (%)
Persistence	29.9989	49.0180	42.9931	40.6700
MLP	47.7015	52.4184	56.1476	52.0892
GP	40.8972	38.6730	47.5696	42.3799
W-GP	30.2413	39.4201	44.0601	37.9072