Table 5. Test results of various indices for three test sets (Kopt ∈ [13, 19]).
| K | Detection rate | Correct classification rate | FNR | FPR | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| T1 | T2 | T3 | T1 | T2 | T3 | T1 | T2 | T3 | T1 | T2 | T3 | |
| 20 | 93.82 | 92.87 | 93.81 | 92.13 | 92.25 | 92.87 | 5.26 | 5.27 | 5.3 | 5.35 | 5.26 | 5.43 |
| 21 | 94.11 | 93.33 | 94.03 | 92.67 | 93.29 | 93.08 | 4.98 | 4.93 | 4.98 | 4.16 | 4.28 | 4.64 |
| 22 | 94.45 | 93.64 | 94.29 | 93.03 | 93.02 | 94.16 | 4.83 | 4.71 | 4.73 | 4.65 | 4.71 | 4.13 |
| 23 | 93.88 | 92.58 | 93.85 | 93.42 | 92.25 | 93.43 | 5.55 | 5.08 | 5.23 | 4.92 | 5.39 | 4.85 |
| 24 | 93.41 | 92.31 | 93.41 | 93.11 | 92.14 | 93.18 | 6.23 | 5.99 | 5.73 | 5.12 | 4.94 | 5.04 |
| 25 | 93.33 | 91.83 | 93.22 | 92.52 | 91.57 | 92.51 | 6.88 | 6.89 | 6.68 | 5.26 | 5.33 | 5.33 |
| 26 | 93.82 | 91.64 | 92.69 | 92.61 | 91.48 | 92.11 | 6.96 | 6.83 | 6.93 | 5.03 | 4.94 | 5.58 |