Table 1 Summary of simulation results
Signal to noise | Evaluation measure | Methods | |||
|---|---|---|---|---|---|
SPR with thresholdz1 − 0.025 | SPR with thresholdz1 − 0.005 | CUSUM with pearson residuals | CUSUM with observations | ||
θ = 5 | Mean days to detection | 0.5 | 0.8 | 1.9 | 6.1 |
Non-detection probability | 0.0 | 0.0 | 0.013 | 0.082 | |
Mean false alarm rate | 3.4% | 1.0% | 5.2% | 5.2% | |
θ = 3 | Mean days to detection | 1.3 | 2.7 | 4.7 | 11.7 |
Non-detection probability | 0.0 | 0.0 | 0.105 | 0.158 | |
Mean false alarm rate | 3.6% | 1.1% | 5.2% | 5.2% | |
θ = 1 | Mean days to detection | 6.6 | 12.6 | 11.9 | 19.2 |
Non-detection probability | 0.004 | 0.120 | 0.373 | 0.178 | |
Mean false alarm rate | 3.9% | 1.2% | 5.1% | 5.3% | |