Ensemble Classifiers and Feature-Based Methods for Structural Damage Assessment

Table 3

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

Signal processing technique	Optimal feature set	Accuracy (%)	Optimal feature set	Accuracy (%)
	Sensor N4		Sensor N5
STFT	S5	100	S5	100
Fast-ST	S10	100	S5, S1, S2	99.1
WT	S2	100	S2, S5	98
SWT	S1	100	S2, S5, S1, S9	97.3
EWT	S5	100	S3, S5, S8	93.7