Table 3 Metric score of autoencoder.

From: Unsupervised anomaly detection for earthquake detection on Korea high-speed trains using autoencoder-based deep learning models

Threshold

Metric

PGA value (Unit: G)

 ≥ 0.01

 ≥ 0.03

 ≥ 0.05

 ≥ 0.07

 ≥ 0.1

 ≥ 0.15

2σ

FAR

0.307

MAR

0.127

0.031

0.000

0.000

0.000

0.000

F1

0.801

0.819

0.850

0.845

0.843

0.837

3σ

FAR

0.044

MAR

0.553

0.364

0.176

0.096

0.000

0.000

F1

0.599

0.745

0.877

0.911

0.969

0.961

4σ

FAR

0.027

MAR

0.716

0.593

0.344

0.178

0.067

0.000

F1

0.434

0.565

0.778

0.881

0.951

0.983

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