Shield Tunneling Parameter Matching Model and UI Interface

Table 2

Experimental results of the two models for the second case.

Number of samples	SVM and IPSO		BP and PSO
	MSE	Relative error	MSE	Relative error
100	0.0003	0.0010	0.0342	0.0095
95	0.0003	0.0008	0.0279	0.0055
90	0.0004	0.0020	0.0294	0.0037
85	0.0004	0.0016	0.0275	0.0094
80	0.0004	0.0022	0.065	0.0298
75	0.0003	0.0017	0.0637	0.0267
70	0.0004	0.0017	0.0701	0.0113
65	0.0004	0.0024	0.0363	0.0168
60	0.0005	0.0019	0.0514	0.0396
55	0.0008	0.0014	0.0785	0.0479
50	0.0009	0.0022	0.0633	0.0320