Diagnosis Model of Volleyball Skills and Tactics Based on Artificial Neural Network

Table 6

BP network spike evaluation results.

Test sample	Practical expert rating	Network output	Absolute error	Relative error (%)	Average relative error (%)
1	82	82.66	0.66	0.80	0.69
2	79	79.42	0.42	0.53
3	85	85.32	0.32	0.38
4	70	69.11	−0.89	1.27
5	83	83.75	0.75	0.90
6	80	79.65	−0.45	0.56
7	76	75.22	−0.78	1.03
8	79	78.67	−0.33	0.42
9	77	76.53	−0.47	0.61
10	68	68.25	0.25	0.37