| 基于初值修正的灰色预测模型的改进及其应用 |
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| 引用本文： | 王忠桃,彭鑫,戴齐.基于初值修正的灰色预测模型的改进及其应用[J].重庆工学院学报,2007(10). |
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| 作者姓名： | 王忠桃 彭鑫 戴齐 |
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| 作者单位： | 西南交通大学信息科学与技术学院 成都610031(王忠桃，戴齐)，成都理工大学信息工程学院 成都610059(彭鑫) |
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| 摘 要： | 对GM(1,1)建模的预测精度进行了分析,表明初值的选取对模型的预测精度有着重要影响,进而提出了可以提高预测精度的修正初值的方法.实证分析结果表明通过初值修正能够提高预测模型的预测精度.
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| 关 键 词： | 灰色预测 GM(1 1)模型 初值 预测精度 |
Improvement and Application of Gray Forecasting Model Based on Initial Value Modification |
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| WANG Zhong-tao,PENG Xin,DAI Qi.Improvement and Application of Gray Forecasting Model Based on Initial Value Modification[J].Journal of Chongqing Institute of Technology,2007(10). |
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| Authors: | WANG Zhong-tao PENG Xin DAI Qi |
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| Affiliation: | WANG Zhong-tao1,PENG Xin2,DAI Qi1 |
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| Abstract: | The forecasting precision of the GM(1,1) model is analyzed.It is indicated that the selection of an initial value has an important effect on the model's forecasting precision.Thus,the method of modifying an initial value is put forward.The application results show that the modification of an initial value can improve the forecasting precision. |
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| Keywords: | grey forecasting GM(1 1) model initial value forecasting precision |
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