Table 7.
PCA Confusion Matrices.
| PCA-5 Features | PCA-10 Features | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Recognised Anomaly Class | ||||||||||||
| No Anomaly (0) | Manhole (1) | Short Bump (2) | Long Bump (3) | Other (4) | No Anomaly (0) | Manhole (1) | Short Bump (2) | Long Bump (3) | Other (4) | |||
|
Confusion
Matrix |
Actual
Anomaly Class |
No Anomaly (0) | 172 | 3 | 2 | 3 | 1 | 173 | 1 | 2 | 4 | 1 |
| Manhole (1) | 22 | 9 | 2 | 7 | 5 | 28 | 11 | 2 | 2 | 2 | ||
| Short Bump (2) | 23 | 4 | 21 | 16 | 0 | 29 | 2 | 17 | 16 | 0 | ||
| Long Bump (3) | 10 | 0 | 5 | 7 | 2 | 10 | 1 | 3 | 10 | 0 | ||
| Other(4) | 35 | 12 | 6 | 13 | 2 | 41 | 7 | 5 | 14 | 1 | ||
| Score | 0.5524 | 0.5550 | ||||||||||
| Precision | 0.3827 | 0.4339 | ||||||||||
| Accuracy | 0.8209 | 0.8220 | ||||||||||