Prediction of Surface Settlement Induced by Large-Diameter Shield Tunneling Based on Machine-Learning Algorithms

Table 4

Performance evaluation of prediction results of 70 groups.

Evaluation indicator	Maximum value	Minimum value	Average value
	0.93	0.48	0.73
ACC	91.1%	64.4%	77.4%
MAE (mm)	4.17	0.65	1.95