TABLE 2.
Performance comparison of different loss functions.
| MES | Metrics | CE | LS | FL | CB |
|---|---|---|---|---|---|
| 0/1/2/3 | ACC, % | 83.92 | 84.17 | 84.51 | 84.64 |
| 0/1/23 | ACC, % | 87.37 | 87.72 | 88.05 | 88.12 |
| 0/123 | ACC, % | 92.60 | 92.79 | 93.54 | 93.73 |
| AUROC | 0.9698 | 0.9728 | 0.9716 | 0.9754 | |
| 01/23 | ACC, % | 94.36 | 94.51 | 94.89 | 95.07 |
| AUROC | 0.9806 | 0.9770 | 0.9786 | 0.9834 |
Abbreviations: ACC, accuracy; AUROC, area value under the receiver operating characteristic (ROC) curve; CB, class‐balance loss; CE, cross entropy loss; FL, focal loss; LS, label smoothing loss; MES, Mayo Endoscopic Subscores.