Advanced Computational Methods for Mitigating Shock and Vibration Hazards in Deep Mines Gas Outburst Prediction Using SVM Optimized by Grey Relational Analysis and APSO Algorithm

Table 2

Grey correlation degree between each comparison sequence and reference sequence.

Comparison sequence
Grey correlation	0.51	0.72	0.43	0.81	0.68	0.65	0.61	0.58	0.52
Sort results	8	2	9	1	3	4	5	6	7