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

Table 3

Comparison between the actual value and the predicted value unit: ten thousand people (year).

Year	The actual value	Observations	Residual ε	The relative error q (%)
2013	3.4271	3.4271	0	0.00
2014	3.5334	3.4427	0.0907	2.57
2015	3.7102	3.6172	0.093	2.51
2016	3.7584	3.8002	0.0418	1.11
2017	3.8786	3.9926	0.114	2.94
2018	4.0332	4.1941	0.1609	3.99
2019	4.3818	4.4062	0.0244	0.56
2020	4.8015	4.6296	0.1719	3.58