Skip to main content
. 2017 Mar 2;14(3):249. doi: 10.3390/ijerph14030249

Table 7.

Performance evaluations of all forecasting models for air pollutants in July and August.

Jul. LSSVM EEMD-LSSVM CEEMD-LSSVM CEEMD-BBODE-LSSVM
MAE
(µg/m3) 		MAPE
(%) 		RMSE
(µg/m3) 		R2 MAE
(µg/m3) 		MAPE
(%) 		RMSE
(µg/m3) 		R2 MAE
(µg/m3) 		MAPE
(%) 		RMSE
(µg/m3) 		R2 MAE
(µg/m3) 		MAPE
(%) 		RMSE
(µg/m3) 		R2
PM2.5 2.7493 13.72 4.6403 0.9190 1.5257 7.01 2.8392 0.9697 0.9223 4.24 1.7455 0.9885 0.8377 3.86 1.5264 0.9912
PM10 4.7844 10.87 7.6946 0.9228 2.3329 5.17 3.7108 0.9821 1.5476 3.46 2.5508 0.9915 1.5004 3.34 2.4581 0.9921
O3 5.7668 6.81 7.9288 0.9451 3.0425 3.56 4.4377 0.9828 1.9619 2.27 2.7241 0.9935 1.7602 2.04 2.4161 0.9949
CO 0.0282 4.93 0.0461 0.9021 0.0137 2.39 0.0225 0.9766 0.0094 1.64 0.0153 0.9892 0.0093 1.64 0.0150 0.9896
NO2 2.4432 12.82 3.6164 0.8298 1.2705 6.61 1.8767 0.9542 0.8877 4.65 1.3733 0.9755 0.8138 4.29 1.2850 0.9785
SO2 1.3173 17.17 1.9538 0.7346 0.6607 8.92 0.9071 0.9428 0.5091 6.71 0.7596 0.9599 0.4762 6.42 0.7222 0.9637
Aug. LSSVM EEMD-LSSVM CEEMD-LSSVM CEEMD-BBODE-LSSVM
MAE
(µg/m3) 		MAPE
(%) 		RMSE
(µg/m3) 		R2 MAE
(µg/m3) 		MAPE
(%) 		RMSE
(µg/m3) 		R2 MAE
(µg/m3) 		MAPE
(%) 		RMSE
(µg/m3) 		R2 MAE
(µg/m3) 		MAPE
(%) 		RMSE
(µg/m3) 		R2
PM2.5 2.8102 10.12 4.2173 0.9718 1.3468 4.72 2.0854 0.9931 0.9601 3.35 1.4169 0.9968 0.8584 3.00 1.2814 0.9974
PM10 4.6826 8.27 7.9020 0.9517 4.6866 8.32 7.8981 0.9518 1.4682 2.55 2.4766 0.9953 1.4201 2.47 2.4687 0.9953
O3 6.8965 7.19 9.2676 0.9454 4.3948 4.66 5.7059 0.9793 2.1932 2.30 2.9572 0.9944 1.9939 2.05 2.6971 0.9954
CO 0.0382 4.83 0.0628 0.9453 0.0196 2.52 0.0350 0.9830 0.0126 1.65 0.0196 0.9946 0.0123 1.63 0.0192 0.9949
NO2 2.6935 12.67 3.8906 0.7507 1.7882 8.44 2.5133 0.8960 1.1073 5.11 1.5708 0.9594 0.9906 4.62 1.4239 0.9666
SO2 1.4433 16.43 2.0774 0.7876 0.7174 8.49 0.9874 0.9520 0.5274 6.17 0.7691 0.9709 0.5124 6.05 0.7568 0.9718