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

Table 7

Sensitivity and ranking of factors that affect the epidemic prevention expenses of the normalized COVID-19 epidemic.

Factors	First	Second	Third	Fourth	Fifth	Mean value	Sort
Project category	0.14	0.16	0.15	0.15	0.15	0.15	2
Total investment	0.25	0.25	0.26	0.24	0.24	0.25	1
Construction period	0.09	0.10	0.08	0.10	0.10	0.10	5
Number of outbreaks during the project construction period	0.09	0.09	0.07	0.08	0.08	0.08	7
Number of managers	0.09	0.08	0.09	0.10	0.10	0.09	6
Number of construction workers	0.13	0.13	0.12	0.15	0.15	0.13	4
Construction scale	0.18	0.15	0.12	0.12	0.12	0.14	3
Whether it belongs to a smart site	0.02	0.02	0.07	0.06	0.06	0.05	8
Qualification level of the construction subject	0.02	0.02	0.06	0.00	0.00	0.02	9