Table 6.
Classification of features selection algorithms based on execution time (hours (h), minutes (min), and seconds (s)) considering 2 and 4 keratoconus classes.
| Category | Algorithms | Execution time using 2 classes | Execution time using 4 classes |
|---|---|---|---|
| Category I | Embedded with a filter | 1.26 s | 1.23 s |
| ANOVA | 3.59 s | 3.59 s | |
| Mutual information | 5.09 s | 5.19 s | |
| Embedded | 6.0 s | 8.82 s | |
| Filter with RFE | 38.58 s | 38.3 s | |
| Filter with HRFA | 1 min 17.58 s | 1 min 38.84 s | |
| RFE | 3 min 20.21 s | 3 min 19.98 s | |
|
| |||
| Category II | Genetic | 9 min 3.07 s | 18 min 20.31 s |
| Filter with SFS | 35 min 54.35 s | 45 min 16.61 s | |
| SFS | 3 h 1 min 1.89 s | 3 h 31 min 46.47 s | |
| Filter with SBS | 5 h 54 min 3.6 s | 7 h 50 min 53.94 s | |
|
| |||
| Category III | SBS | 313 h 35 min 16.15 s | N.A |