Prediction of Information Talent Demand Based on the Grayscale Prediction Model and the BP Neural Network

Table 1

Grey model accuracy reference table.

Model accuracy level	Mean relative error β	Correlation γ	Mean square error C	Probability of small error p
Level 1 (high)	≤0.01	≥0.90	≤0.35	≥0.95
Level 2 (qualified)	0.01 ≤ β ≤ 0.05	0.80 ≤ γ ≤ 0.90	0.35 ≤ C ≤ 0.50	0.80 ≤ p ≤ 0.95
Level 3 (barely qualified)	0.05 ≤ β ≤ 0.10	0.60 ≤ γ ≤ 0.80	0.50 ≤ C ≤ 0.65	0.60 ≤ p ≤ 0.70
Level 4 (failed)	>0.20	<0.60	>0.80	<0.60