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经济时间序列的非线性组合建模与预测方法研究

, PP. 27-23

Keywords: 经济时间序列,非线性组合建模与预测,模糊系统,遗传算法

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Abstract:

?基于模糊系统在紧立集中能够任意逼近非线性连续函数的特性,本文提出了一种基于Takagi-Sugeno模糊规则基的非线性组合预测新方法,以克服线性组合预测方法在解决非平稳时间序列组合建模问题所遇到的困难和存在的不足,并采用相应的遗传算法确定模糊系统的参数及模糊子集的划分。理论分析和大量的应用实例表明:该方法具有很强的学习与泛化能力,在处理诸如经济时间序列这种具有一定程度不确性的非线性系统的组合建模与预测方面有很好的应用价值。

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