单调函数
价值(数学)
数学
估计
误差修正模型
航空
计量经济学
统计
工程类
经济
管理
数学分析
协整
航空航天工程
作者
Yali Zhang,Xiaojiang Yang,Wei Cui
摘要
To improve the employment forecasting accuracy of traditional grey models, the grey model with the fractional error accumulation is proposed. The estimation error is accumulated. The proposed model can make use of the initial value x (1) and can give more attention to the error of new data. The monotonicity of the simulative value by the proposed model is data‐driven and uncertain. The comparison results show that the proposed model can enhance the forecasting accuracy of traditional grey model. It deserves to be applied to employment forecasting.
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