Table 1.
Contingency table and optimal parameters of each classifier tested for the identification of S. marianum against other vegetation.
| Network Prediction | |||||
|---|---|---|---|---|---|
| Classifier (Overall Accuracy %) | Actual Observations | S. marianum (Pixels) | Other Vegetation (Pixels) | User’s Accuracy (%) | Producer’s Accuracy (%) |
| OC-SVM σ = 2.5 (96.05) | S. marianum | 416 | 25 | 97.88 | 94.33 |
| Other vegetation | 9 | 410 | 94.25 | 97.85 | |
| OC-SOM, 8 × 8 (94.65) | S. marianum | 404 | 37 | 97.82 | 91.61 |
| Other vegetation | 9 | 410 | 91.72 | 97.85 | |
| Autoencoder, 8 hidden (94.30) | S. marianum | 416 | 25 | 94.55 | 94.33 |
| Other vegetation | 24 | 395 | 94.05 | 94.27 | |
| OC-PCA (90.00) | S. marianum | 390 | 51 | 91.76 | 88.44 |
| Other vegetation | 35 | 384 | 88.28 | 91.65 | |