基于数据列变换的自回归预测方法的改善 |
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引用本文: | 吕效国.基于数据列变换的自回归预测方法的改善[J].南通大学学报(自然科学版),2007,6(1):8-10,30. |
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作者姓名: | 吕效国 |
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作者单位: | 南通大学理学院,江苏,南通,226007 |
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基金项目: | 南通大学校科研和教改项目;南通大学教学研究课题 |
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摘 要: | 证明了利用反双曲正弦函数变换能提高数据列的光滑程度,获得结论:设{x_(k)}为递增数据列,x_(1)>0,y(k)=ln(x_(k) (x_(k)~2 1)~(1/2)),则数据列{y_(k)}比数据列{x_(k)}光滑.给出了改善的自回归预测方法,并且举例加以论证.
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关 键 词: | 反双曲正弦函数 变换 数据列 光滑程度 自回归预测 |
文章编号: | 1673-2340(2007)01-0008-03 |
修稿时间: | 2006-07-18 |
Improvement of Autoregressive Prediction Method Based on Data Row Transformation |
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Authors: | Lü Xiao-guo |
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Affiliation: | School of Sciences, Nantong University, Nantong 226007, China |
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Abstract: | This paper proves that the smooth degree of a data row can be increased by transforming the counter-hyperbolic sine function. It is concluded that if {x_(k)} is an progressive data row,x_(1)>0,y(k)=ln(x_(k) (x_(k)~2 1)~(1/2)), then the data row {y(k)} is smoother than {x(k)}. |
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Keywords: | counter-hyperbolic sine function transformation rata row smooth degree autoregressive prediction |
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