Table 3:
Gaussian data with n = 200 and p = 1001 under MAR. Approximately 40% features and 90% cases contain missing values. Linear RR and MICE are not included due to running out of RAM. Detailed simulation setup information is in appendix.
| Models | Style | Time(s) | Imp MSE | Bias() | CR() | SE() | SD() |
|---|---|---|---|---|---|---|---|
| SoftImpute | SI | 30.1 | 0.0442 | −0.2862 | 0.50 | 0.1583 | 0.2019 |
| GAIN | SI | 111.1 | 0.7383 | 0.6897 | 0.18 | 0.1697 | 0.5693 |
| MIWAE | SI | 52.5 | 0.1228 | 0.5885 | 0.15 | 0.1793 | 0.2162 |
| Sinkhorn | MI | 39.3 | 0.1031 | 0.6647 | 0.26 | 0.2643 | 0.2195 |
| MI-NNGP1 | MI | 4.9 | 0.0119 | 0.0351 | 0.89 | 0.1194 | 0.1422 |
| MI-NNGP1-BS | MI | 4.9 | 0.0168 | 0.0383 | 0.94 | 0.1424 | 0.1416 |
| MI-NNGP2 | MI | 5.8 | 0.0086 | 0.0487 | 0.90 | 0.1212 | 0.1343 |
| MI-NNGP2-BS | MI | 13.9 | 0.0092 | 0.0347 | 0.93 | 0.1257 | 0.1289 |
| Complete data | - | - | - | 0.0350 | 0.94 | 0.1122 | 0.1173 |
| Complete case | - | - | - | 0.2804 | 0.76 | 0.3466 | 0.4211 |
| ColMean Imp | SI | - | 0.1130 | 0.7024 | 0.13 | 0.2574 | 0.1957 |