Ensemble Classifiers and Feature-Based Methods for Structural Damage Assessment

Table 2

Classification accuracy of the selected feature subset obtained by using different feature extraction methods for bridge health monitoring benchmark problem (case A).

Signal processing technique	Optimal feature set	Accuracy (%)	Optimal feature set	Accuracy (%)
	Sensor N2		Sensor N1
STFT	S5	100	S5, S2	99.6
Fast-ST	S5	100	S5, S3	88.7
WT	S7	100	S9, S7, S1, S3	91.3
SWT	S5	100	S5, S3	90.1
EWT	S3	100	S5	91.7