Table 1.
Classifier performance.
| Reference | ||||
|---|---|---|---|---|
| Predicted | Not threatened | Threatened | Not threatened | Threatened |
| Not threatened | 695 (26) | 54 (10) | 3786 (20) | 309 (4) |
| Threatened | 51 (8) | 75 (25) | 616 (7) | 1271 (23) |
| Marine species | Non-marine species | |
|---|---|---|
| Accuracy | 0.88 (0.74) | 0.85 (0.80) |
| Specificity | 0.93 (0.76) | 0.86 (0.74) |
| Sensitivity | 0.58 (0.71) | 0.80 (0.85) |
| Negative Pred. Value | 0.93 (0.72) | 0.92 (0.83) |
| Positive Pred. Value | 0.60 (0.76) | 0.67 (0.77) |
| Balanced Accuracy | 0.76 (0.74) | 0.83 (0.80) |
Confusion matrix and resulting performance measures for marine and non-marine species based on the set-aside testing data (25% of the dataset) and based on formerly Data Deficient species (n = 123) in IUCN version 2021-2 (in brackets).