Fault Diagnosis for Compensating Capacitors of Jointless Track Circuit Based on Dynamic Time Warping

Table 10

Summary of results of all the experiments.

Method	Classification accuracy	Classification stability (average)	Computation complexity (for one classification)
Comparison of static voltages	Very low (not able to locate the faults)	NA*	NA
SVM (without DTW)	81.29%	NA	NA
Classical DTW	99.88%	0.9260	O (156 × 156 × 17)
DTW with improved local cost measure	100%	5.0881	O (156 × 156 × 17)
DTW with global constraint	99.88%	6.5735	O (29.26% × 156 × 156 × 17)

∗“NA” means not applicable.