Ferrography Wear Particles Image Recognition Based on Extreme Learning Machine

Table 2

Average recognition rate of three classifiers (%).

classifier and training percentage (%)	BP				SVM				ELM
	70	80	90	Average training time (s)	70	80	90	Average training time (s)	70	80	90	Average training time (s)
Red oxide	99.44	100	100	0.26	84.62	87.50	90.00	0.19	90.00	100	100	0.14
Fatigue	82.00	88.78	90	1.43	76.00	76.00	80.00	0.22	80.77	91.25	100	0.18
Cutting	85.00	92.00	95.00	0.19	87.50	90.00	90.00	0.09	77.78	88.33	100	0.07
Spherical	87.40	95.00	97.00	0.28	80.00	82.00	85.00	0.15	100	100	100	0.13
Severe sliding	83.00	88.00	94.05	0.21	78.95	88.89	91.57	0.11	85.00	100	100	0.07