| 灰色预测模型的问题讨论 |
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| 引用本文： | 冯利华.灰色预测模型的问题讨论[J].系统工程理论与实践,1997,17(12):125-128. |
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| 作者姓名： | 冯利华 |
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| 作者单位： | 浙江师范大学地理系 |
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| 摘 要： | 根据各种应用实例的分析，指出对于同一原始序列来说，当计算零点升高、新序列的第二项减小或累加次数增多时，ＧＭ（１，１）模型的预测值增大，同时指出这些问题是由ＧＭ（１，１）模型本身的特点所决定的。
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| 关 键 词： | GM（1 1）模型 计算零点 序列长度 累加次数 预测值 |
Discussion of the Problem of Grey Forecast Model |
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| Feng Lihua.Discussion of the Problem of Grey Forecast Model[J].Systems Engineering —Theory & Practice,1997,17(12):125-128. |
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| Authors: | Feng Lihua |
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| Abstract: | In accordance with analysis of various examples, this paper points out that so far as same primitive sequence is concerned, forecasting value of GM(1,1) enlarges when the calculating null point rises, and the second term of the new sequence decreases, and cumulative number increases. It is pointed out at the same time that these problems depend on the character of GM(1,1) itself. |
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| Keywords: | grey model(1 1) calculating null point sequence length cumulative number forecasting value |
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