Application of EMD-Based SVD and SVM to Coal-Gangue Interface Detection

Table 4

Classification results of SVM under few samples.

Testing sample number; (from Table 2)	Real caving state	Distance to optimal hyperplane 𝐻		Results
		126 training samples	8 training samples
5	Top-coal caving	0.9473	0.6561	+1 (right)
6	Top-coal caving	1.0137	0.9807	+1 (right)
11	Coal-gangue caving	−1.0223	−0.4178	−1 (right)
12	Coal-gangue caving	−1.0004	−0.4182	−1 (right)