Hybrid Feature Extraction of Pipeline Microstates Based on Φ-OTDR Sensing System

Table 2

Recognition of three microstates with different features.

Algorithms	Features
	PAR and STI-ZCR (%)	PAR and FF (%)	STI-ZCR and FF (%)	PAR, STI-ZCR, and FF (%)
C5.0	68.31	65.52	70.13	74.92
SVM	73.05	71.32	79.69	86.53
Random forest	80.70	72.57	85.99	91.61