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基于非线性灰色微分方程的PPI预测

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摘要 由于工业品出厂价格指数(PPI)是衡量工业产品出厂价格变动程度的指数,PPI的变化会影响居民消费价格指数(CPI),存在PPI向CPI的传导关系,是有关部门制定经济政策的重要依据,因而对PPI进行有效的预测具有现实的重要意义。由于微分进化算法(DE)具有很强的全局寻优功能、较快的收敛速度及较好的稳定性的优点,该文采用微分进化算法对非线性灰色微分方程中的参数进行寻优,从而建立起基于非线性灰色微分方程的PPI预测模型,仿真结果表明了该模型的有效性。
作者 查进道
出处 《科技资讯》 2015年第25期95-96,共2页 Science & Technology Information
基金 江苏经贸职业技术学院重点科研项目 编号为JSJMY013
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