Research Article
Application of Blind Source Separation Algorithms and Ambient Vibration Testing to the Health Monitoring of Concrete Dams
Table 2
The false alarm rate and missing alarm rate of the dam health monitoring.
| Case | Alarm rate | PCA | KPCA | ICA | Frequency | COMAC | Frequency | COMAC | Frequency | COMAC |
| 1 | | 2.5% | 0.5% | 0.0% | 0.0% | 0.0% | 0.50% | | 97.5% | 99.5% | 100.0% | 100.0% | 100.0% | 99.50% | 2 | | 2.0% | 0.0% | 1.5% | 0.0% | 2.0% | 0.0% | | 98.0% | 100.0% | 98.5% | 100.0% | 98.0% | 100.0% | 3 | | 57.5% | 7.5% | 7.5% | 5.0% | 6.0% | 2.5% | | 42.5% | 92.5% | 92.5% | 95.0% | 94.0% | 97.5% | 4 | | 34.0% | 0.0% | 15.5% | 0.0% | 7.0% | 0.0% | | 66.0% | 100.0% | 84.5% | 100.0% | 93.0% | 100.0% | 5 | | 11.0% | 0.0% | 5.0% | 0.0% | 0.0% | 0.0% | | 89.0% | 100.0% | 9.5% | 100.0% | 100.0% | 100.0% |
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