水资源与水工程学报

RAN Yanping,HE Wansheng,LEI Xuhui,XIA Hongming.应用灰色GM(1.1)模型及其改进模型预测渭河天水段水质水资源与水工程学报[J].,2011,22(5):

应用灰色GM(1.1)模型及其改进模型预测渭河天水段水质

Application of GM( 1, 1 ) model and improved model to predict the water Quality of Weihe River in Tianshui section

DOI：

英文关键词:water quality prediction information renewal GM(1 1) model gray theory Weihe river

基金项目:甘肃省教育厅基金资助项目，甘肃省校内基金资助项目

作者	单位
RAN Yanping,HE Wansheng,LEI Xuhui,XIA Hongming	天水师范学院数学与统计学院,甘肃天水,741000

摘要点击次数: 1894

全文下载次数: 3

中文摘要:

利用灰色GM(1.1)模型、残差修正GM(1.1)模型预测2004至2010年渭河对天水段水质污染物时发现,二者对于某些污染物预测精度不高,而且残差修正GM(1.1)模型预测精度未必一定高于GM(1.1)模型.在这种情形下,应用新陈代谢GM(1.1)模型,预测未来五年渭河水质的变化及其水质污染物突变的时刻.分析结果表明:新陈代谢GM(1.1)模型有助于提高预测精度和预测的可靠性.

英文摘要:

Appling GM(1,1) model and its residual modified model to predict the density of pollutants in Weihe's water in Tianshui from 2004 to 2010,the prediction accuracy of latter is not higher than that of former and the accuracy of both is lower to some pollutants.In this situation,information renewal GM(1,1) is used to forecast Weihe's water quality and mutant moments of pollutants in the next five years.The results of analysis indicated that the informat ion renewal GM(1,1) predicting model could obviously impr...

查看全文查看/发表评论下载PDF阅读器

关闭