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

Table 4

Model evaluation results.

The evaluation index	Model index value	The critical value	Precision grade
Mean relative error β	2.15%	<5%	Level 2
Correlation γ	0.62	>0.6	Level 4
Probability of small error p	1	>0.95	Level 3
Posterior error ratio C	0.07	<0.35	Level 1