Table 5.
Fault | Sample Bin | Fault Detection Rate | Optimal Feature Subset Size | Accuracy | False Alarm Rate | AUC |
---|---|---|---|---|---|---|
Fault-7 Feed Temperature Change |
20 | 0.80 | 143 | 0.89 | 0.02 | 0.97 |
40* | 0.81 | 407 | 0.88 | 0.05 | 0.95 | |
40 | 0.81 | 406 | 0.88 | 0.04 | 0.95 | |
60* | 0.77 | 348 | 0.87 | 0.02 | 0.95 | |
60 | 0.77 | 320 | 0.87 | 0.03 | 0.95 | |
80* | 0.79 | 401 | 0.88 | 0.04 | 0.95 | |
80 | 0.79 | 233 | 0.88 | 0.03 | 0.94 | |
100 | 0.80 | 721 | 0.87 | 0.06 | 0.94 | |
120* | 0.83 | 433 | 0.90 | 0.03 | 0.96 | |
120 | 0.83 | 427 | 0.89 | 0.04 | 0.96 | |
Fault-8 pH Sensor Drift |
20 | 0.79 | 93 | 0.83 | 0.12 | 0.91 |
40* | 0.90 | 20 | 0.95 | 0.00 | 0.99 | |
40 | 0.90 | 12 | 0.95 | 0.00 | 0.99 | |
60* | 0.96 | 89 | 0.98 | 0.00 | 1.00 | |
60 | 0.96 | 82 | 0.98 | 0.00 | 1.00 | |
80* | 0.97 | 87 | 0.99 | 0.00 | 1.00 | |
80 | 0.97 | 4 | 0.98 | 0.00 | 0.99 | |
100* | 0.98 | 13 | 0.99 | 0.00 | 0.99 | |
100 | 0.98 | 7 | 0.99 | 0.00 | 0.99 | |
120* | 1.00 | 17 | 1.00 | 0.00 | 1.00 | |
120 | 1.00 | 5 | 1.00 | 0.00 | 1.00 | |
Fault-15 Contamination |
20 | 0.66 | 1 | 0.50 | 1.00 | 1.00 |
40* | 0.92 | 226 | 0.95 | 0.02 | 0.99 | |
40 | 0.92 | 172 | 0.95 | 0.02 | 0.99 | |
60* | 0.99 | 523 | 0.99 | 0.00 | 1.00 | |
60 | 0.99 | 268 | 0.99 | 0.00 | 1.00 | |
80* | 0.99 | 496 | 1.00 | 0.00 | 1.00 | |
80 | 0.99 | 323 | 0.99 | 0.00 | 1.00 | |
100* | 0.99 | 684 | 0.99 | 0.00 | 1.00 | |
100 | 0.99 | 84 | 0.99 | 0.00 | 1.00 | |
120* | 1.00 | 193 | 1.00 | 0.00 | 1.00 | |
120 | 1.00 | 55 | 1.00 | 0.00 | 1.00 |