ECT Image Recognition of Pipe Plugging Flow Patterns Based on Broad Learning System in Mining Filling

Table 2

The result of adding one feature to BLS.

Feature nodes	Enhancement nodes	Testing accuracy (%)			Training time (s)
		P1	P2	P3	P1	P2	P3
200	2000	76.73	97.13	98.35	0.6187	0.6754	0.7246
200	4000	82.06	97.28	98.52	1.1592	1.2627	1.3174
200	6000	83.30	97.46	98.76	2.1641	2.3541	4.2512
200	8000	83.84	97.59	98.89	4.3135	4.2429	4.5854
200	10000	84.19	97.63	98.86	6.2257	6.2466	6.3350
200	12000	82.95	97.35	98.49	9.3698	9.3321	9.1278
500	10000	80.82	97.41	98.21	7.1576	7.2756	7.1853
2000	10000	75.66	97.25	98.43	14.2775	14.5853	14.4428
4000	10000	73.89	97.33	98.37	46.4412	47.1185	47.6614