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

Table 3

The result of adding three features to BLS.

Feature nodes	Enhancement nodes	Training accuracy (%)	Testing accuracy (%)	Training time (s)
200	2000	99.98	99.54	0.6083
200	4000	99.94	99.67	1.2704
200	6000	99.98	99.76	2.2515
200	8000	99.95	99.79	4.0251
200	10000	99.90	99.82	6.0906
200	12000	99.96	99.65	9.1225
500	10000	99.99	99.81	7.3056
2000	10000	99.92	99.85	14.0437
4000	10000	99.93	99.87	47.9779