Early Warning for the Construction Safety Risk of Bridge Projects Using a RS-SSA-LSSVM Model

Table 8

Average value of the 1000 early warning results of different models.

Warning degree	Actual	Predicted	Rate of errors (%)	Predicted	Rate of errors (%)	Predicted	Rate of errors (%)
		The proposed model		The proposed model without RS		LSSVM
I	27	27.531	1.97	25.024	7.32	16.952	37.2
II	34	33.524	1.40	36.084	6.13	42.084	23.8
III	8	7.944	0.70	7.840	2.00	8.716	8.95
IV	3	3.001	0.03	3.052	1.73	4.248	41.6
		SSA-BP		PSO-LSSVM		PSO-BP
I	27	36.723	36.0	21.414	20.7	34.482	33.5
II	34	26.521	22.0	36.498	7.35	26.567	21.9
III	8	5.667	29.2	10.036	25.45	7.011	12.4
IV	3	3.089	29.7	4.052	49.2	3.940	3.13