Surrounding Object Material Detection and Identification Method for Robots Based on Ultrasonic Echo Signals

Table 4

The average values with their standard deviations of the F1-score and accuracy under different algorithms.

Algorithms	Accuracy	F1-score
KNN	0.819 ± 0.005	0.81 ± 0.008
SVM	0.881 ± 0.003	0.87 ± 0.005
Decision tree	0.85 ± 0.004	0.84 ± 0.005