Prediction of the Normalized COVID-19 Epidemic Prevention Costs of Construction Projects Based on an Optimized Neural Network

Table 6

Error statistics of three methods (RF, SVM, and the optimized neural network).

Data sequence number	Actual value	RF	Error (%)	SVM	Error (%)	The optimized neural network	Error (%)
56	10	25.1888	151.89%	26.2675	162.68%	12.5919	25.92%
57	12	56.2222	368.52%	27.1982	126.65%	10.9385	8.85%
58	12	42.1515	251.26%	33.1918	176.60%	13.5302	12.75%
59	18	100.6665	459.26%	81.8908	354.95%	20.0691	11.50%
60	8	13.7278	71.60%	8.9750	12.19%	7.0119	12.35%
61	2	5.6393	181.97%	7.0694	253.47%	2.1496	7.48%
Average error		247.42%		181.09%		13.14%