| 煤炭海运总量的灰色预测 |
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| 引用本文： | 张愿章,薛雷. 煤炭海运总量的灰色预测[J]. 河南科学, 2007, 25(1): 23-25 |
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| 作者姓名： | 张愿章 薛雷 |
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| 作者单位： | 华北水利水电学院,郑州,450011;华北水利水电学院,郑州,450011 |
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| 摘 要： | 基于灰色数学理论,通过常规全数据GM(1,1)模型及等维新陈代谢GM(1,1)模型分别对煤炭海运总量进行建模并预测,并与传统的最小二乘曲线拟合所得结果进行比较,结果表明,运用灰色理论所建立的等维GM(1,1)进行预测是可行的,而且精度较传统方法高。
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| 关 键 词： | GM(1,1) 等维GM(1 1) 拟合 预测 |
| 文章编号： | 1004-3918（2007）01-0023-03 |
| 修稿时间： | 2006-11-08 |
Grey Prediction for the Total Amount of Coal by Ocean Shipping |
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| ZHANG Yuan-zhang,XUE Lei. Grey Prediction for the Total Amount of Coal by Ocean Shipping[J]. Henan Science, 2007, 25(1): 23-25 |
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| Authors: | ZHANG Yuan-zhang XUE Lei |
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| Affiliation: | North China Institute of Water Conservancy and Hydroelectric Power, Zhengzhou 450011, China |
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| Abstract: | Based on the theory of grey system,some methods such as the ordinary GM(1,1)? Equal dimension GM(1,1)? polynomial fitting are all applied for the prediction for the total amount of coal in this paper.The results show that equal dimension GM(1,1) is applicable and its precision is better than the traditional method of polynomial fitting and ordinary GM(1,1). |
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| Keywords: | GM(1 1) equal-dimension GM(1 1) fitting forecasting |
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