灰色预测模型的再拓广(英文) |
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引用本文: | 李群.灰色预测模型的再拓广(英文)[J].大学数学,1997(4). |
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作者姓名: | 李群 |
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作者单位: | 山东财政学院基础部 |
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摘 要: | 本文通过用对数函数对原始数据列{x(0)(k)}进行预测,又提出用幂函数对原始数据列进行变换,以提高离散数据的光滑度。在此基础上再将对数变换与幂函数变换两者结合起来,产生一种新的变换——“对数函数—幂函数变换”,达到了进一步增加数据的光滑度,提高预测精度的目的。
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关 键 词: | 灰色预测 幂函数变换 对数函数—幂函数变换 |
The Further Generalization for Grey Forecasting Model |
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Abstract: | In this paper, the method which forecasts original sequences {x(0)(k)} with logarithmic function has been complemented, and the method which handles original sequences by logarithmic function power function transformation has been presented, then smooth degree and precision of forecasting of discrete data have been improved. |
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Keywords: | Grey forecasting Power function transformation |
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