Application of Improved GM (1, 1) Model in Prediction of Training Results of 100 Meter Race

Table 4

Comparison of model accuracy.

Prediction method	Average relative error (%)	Grey absolute correlation degree
Literature [18]	4.68	0.9769
Literature [19]	2.79	0.9815
Literature [20]	2.55	0.9898
Proposed	2.17	0.9978