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

Table 1

Evaluation results of BP network service.

Test sample	Practical expert rating	Network output	Absolute error	Relative error (%)	Average relative error (%)
1	82	83.28	1.28	1.56	0.92
2	87	85.36	1.64	1.88
3	88	87.58	0.42	0.48
4	70	69.90	0.10	0.14
5	79	79.89	0.89	1.13
6	75	75.58	0.58	0.77
7	78	77.83	−0.17	0.22
8	82	83.14	1.14	1.39
9	71	70.57	0.43	0.61
10	60	60.63	0.63	1.05