基于灰色组合预测模型的宁夏万元GDP 用水量预测
首发时间:2015-05-28
摘要:本文基于灰色系统理论,建立了灰色GM(1,1)预测模型和Logistic方程灰色预测模型相结合的灰色组合预测模型,对区域万元GDP用水量进行预测。根据宁夏回族自治区2006~2013年数据建立模型,利用已有的计算机程序,分析预测宁夏全区未来几年的万元GDP用水量。结果表明三种预测模型均符合精度要求,灰色组合预测模型更符合实际情况。
关键词: 灰色系统理论;Logistic方程灰色预测;GM(1 1)预测;万元GDP用水量
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Prediction of GDP water consumption of Ningxia based on gray combination of prediction model
Abstract:This paper is based on the gray system theory, The Grey Combination Forecasting Model of gray GM(1, 1) prediction model and Logistic equation gray prediction model is established, and the water consumption of regional GDP is forecasted. According to the data of the Ningxia Hui Autonomous Region 2006~2013 data establishment model, the use of existing computer programs, analysis and prediction of the region of Ningxia in the next few years, million GDP water consumption. The results show that the three forecasting models accord with the accuracy, and the gray combination forecasting model is more realistic.
Keywords: gray system theory Logistic equation gray prediction GM(1, 1) prediction Million GDP water consumption.
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