Table 5 Predictive accuracy of PNN models trained from different number of intermediate-dose samples.
Validation set | Training set size | MAE (mg/day) | Under-predicted percentage N (%) | Ideal-predicted percentage N (%) | Over-predicted percentage N (%) | MSE (mg/day) |
|---|---|---|---|---|---|---|
Internal | 12,429 | 0.0681 | 0 (0.0) | 1488 (95.8) | 66 (4.2) | 0.0281 |
6214 | 0.0665 | 0 (0.0) | 4497 (96.5) | 164 (3.5) | 0.0256 | |
1533 | 0.0813 | 12 (0.2) | 6014 (96.8) | 189 (3.0) | 0.0282 | |
External | 12,429 | 0.0830 | 0 (0.0) | 1481 (95.3) | 73 (4.7) | 0.0310 |
6214 | 0.0690 | 4 (0.1) | 4433(95.1) | 224 (4.8) | 0.0305 | |
1533 | 0.0844 | 15 (0.2) | 7424 (95.6) | 329 (4.2) | 0.0327 |
