Empirical Study on Theories and Techniques of Adolescent Physical Health Promotion under the Background of Big Data

Table 1

Predictive effect of male 50 m running grade.

Training set ratio (%)	Accuracy (%)			Macro-F1 index
	Random forest algorithm	Gradient boosting tree	Neural network algorithm	Random forest algorithm	Gradient boosting tree	Neural network algorithm
20	69.14	68.89	67.91	0.428	0.360	0.225
30	68.60	68.56	67.66	0.409	0.354	0.242
40	69.17	69.32	68.40	0.421	0.379	0.255
50	68.99	69.54	68.50	0.439	0.360	0.274
60	69.21	69.79	68.83	0.440	0.371	0.279
80	69.09	69.72	68.72	0.422	0.354	0.289