TABLE 2.
Diagnostic performances of the image-based deep learning models with the hard and soft voting strategies.
| Voting strategy | Dataset | AUC (95% CI) | ACC | SEN | SPE | NPV | PPV |
|---|---|---|---|---|---|---|---|
| Hard voting | Training set | 0.712 (0.625–0.797) | 0.786 | 0.936 | 0.487 | 0.792 | 0.785 |
| Test set | 0.689 (0.554–0.826) | 0.717 | 0.821 | 0.5556 | 0.6667 | 0.742 | |
| Soft voting | Training set | 0.705 (0.615–0.794) | 0.778 | 0.923 | 0.487 | 0.760 | 0.783 |
| Test set | 0.633 (0.497–0.767) | 0.674 | 0.821 | 0.444 | 0.615 | 0.697 |
ACC, accuracy; AUC, area under the curve; CI, confidence interval; NPV, negative predictive value; PPV, positive predictive value; SEN, sensitivity; SPE, specificity.