Table 3.
Algorithm performance statistics for larger more clustered outbreaks (S4:n = 93) for false alarm (FA) rates approximating 0.05 and 0.01.
| Algorithm | mean FA rate |
mean sensitivity | mean (median) timeliness | mean (median) adjusted timeliness |
|---|---|---|---|---|
| EARS C1 | 0.049 | 55.9 | 6.2 (2.5) | 15.8 (18) |
| EARS C2 | 0.048 | 92.5 | 5.0 (4) | 6.7 (4) |
| EARS C3 | 0.050 | 93.5 | 2.8 (0) | 4.4 (1) |
| NBC 7 | 0.050 | 97.8 | 2.7 (1) | 3.3 (1) |
| NBC 14 | 0.050 | 98.9 | 2.6 (1) | 2.9 (1) |
| NBC 28 | 0.055 | 97.8 | 3.5 (1) | 4.0 (1) |
| HMM 7 | 0.049 | 97.8 | 4.2 (3) | 4.7 (3) |
| HMM 14 | 0.049 | 98.9 | 4.3 (3) | 4.6 (3) |
| HMM 28 | 0.049 | 100 | 4.7 (3) | 4.7 (3) |
| EARS C1 | 0.0004 | 18.3 | 7.8 (9) | 24.3 (28) |
| EARS C2 | 0.009 | 20.4 | 8.4 (5) | 24.0 (28) |
| EARS C3 | 0.009 | 41.9 | 7.1 (4) | 19.2 (28) |
| NBC 7 | 0.009 | 76.3 | 7.2 (5) | 12.1 (10) |
| NBC 14 | 0.010 | 82.8 | 6.6 (5) | 10.3 (7) |
| NBC 28 | 0.013 | 89.2 | 7.2 (6) | 9.4 (7) |
| HMM 7 | 0.010 | 94.6 | 6.6 (5.5) | 7.7 (6) |
| HMM 14 | 0.008 | 97.8 | 4.9 (4) | 5.4 (4) |
| HMM 28 | 0.010 | 100 | 5.0 (4) | 5.0 (4) |