Table 2. Experimental results of a data imputation method in RM pattern.
Models | Missing rate | |||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
30% | 40% | 50% | 60% | 70% | 80% | |||||||||||||
MAE | RMSE | MAPE | MAE | RMSE | MAPE | MAE | RMSE | MAPE | MAE | RMSE | MAPE | MAE | RMSE | MAPE | MAE | RMSE | MAPE | |
MEAN | 0.0321 | 0.0868 | 2.16% | 0.0476 | 0.1100 | 3.28% | 0.0671 | 0.1361 | 5.16% | 0.0911 | 0.1650 | 7.86% | 0.1206 | 0.1973 | 9.45% | 0.1540 | 0.2306 | 10.98% |
SVR | 0.0761 | 0.0880 | 5.67% | 0.0783 | 0.0909 | 5.95% | 0.0789 | 0.0921 | 6.13% | 0.0831 | 0.0965 | 6.87% | 0.0874 | 0.1035 | 7.03% | 0.0951 | 0.1108 | 7.84% |
GRU-D | 0.0763 | 0.0944 | 5.88% | 0.0822 | 0.1010 | 6.07% | 0.0908 | 0.1113 | 7.16% | 0.0917 | 0.1120 | 7.05% | 0.1009 | 0.1222 | 8.20% | 0.1044 | 0.1263 | 8.39% |
BRITS | 0.0526 | 0.0794 | 3.00% | 0.0550 | 0.0818 | 3.73% | 0.0580 | 0.0849 | 4.07% | 0.0603 | 0.0867 | 4.54% | 0.0624 | 0.0884 | 4.22% | 0.0660 | 0.0923 | 4.51% |
GAIN | 0.0361 | 0.0547 | 2.07% | 0.0399 | 0.0613 | 2.19% | 0.0491 | 0.0734 | 2.84% | 0.0617 | 0.1088 | 4.97% | 0.0948 | 0.1716 | 8.14% | 0.1173 | 0.1881 | 9.48% |
PC-GAIN | 0.0841 | 0.1417 | 6.85% | 0.0875 | 0.1474 | 7.33% | 0.0926 | 0.1524 | 8.21% | 0.0955 | 0.1543 | 8.59% | 0.1000 | 0.1582 | 9.13% | 0.1080 | 0.1670 | 10.25% |
BGCP | 0.0573 | 0.0794 | 3.88% | 0.0572 | 0.0794 | 3.97% | 0.0574 | 0.0795 | 4.10% | 0.0580 | 0.0801 | 4.54% | 0.0584 | 0.0805 | 4.95% | 0.0592 | 0.0817 | 5.05% |
GACN | 0.0534 | 0.0768 | 3.26% | 0.0549 | 0.0771 | 3.39% | 0.0557 | 0.0775 | 3.77% | 0.0562 | 0.0782 | 3.56% | 0.0575 | 0.0789 | 4.17% | 0.0584 | 0.0800 | 4.35% |
DGCRIN | 0.0463 | 0.0711 | 1.75% | 0.0469 | 0.0715 | 2.47% | 0.0480 | 0.0723 | 2.61% | 0.0503 | 0.0746 | 2.89% | 0.0517 | 0.0757 | 3.59% | 0.0523 | 0.0761 | 3.35% |
KG-GAN | 0.0244 | 0.0427 | 1.44% | 0.0254 | 0.0444 | 1.77% | 0.0270 | 0.0454 | 2.22% | 0.0291 | 0.0488 | 2.05% | 0.0292 | 0.0523 | 2.58% | 0.0309 | 0.0535 | 2.85% |
Note:
Values in bold indicate the best result.