等維動態(tài)遞補(bǔ)灰色模型改進(jìn)及應(yīng)用研究
發(fā)布時(shí)間:2018-08-10 19:43
【摘要】:針對等維動態(tài)遞補(bǔ)灰色模型對波動性數(shù)據(jù)預(yù)測的局限性,提出了緩沖算子等維動態(tài)遞補(bǔ)灰色模型,改進(jìn)了原有模型對波動性數(shù)據(jù)預(yù)測誤差較大的問題。利用成都市2008—2013年的用水統(tǒng)計(jì)資料,在驗(yàn)證了模型的實(shí)用性后,分別建立了傳統(tǒng)的GM(1,1)模型、等維動態(tài)遞補(bǔ)GM(1,1)模型以及帶有弱化緩沖算子的等維動態(tài)遞補(bǔ)GM(1,1)模型,對成都市2016、2020、2025年各類用水量進(jìn)行預(yù)測分析。結(jié)果表明,改進(jìn)后的模型預(yù)測精度高,實(shí)用性好,能給成都市未來的水資源規(guī)劃與管理提供可靠的依據(jù)。
[Abstract]:In view of the limitation of the equal-dimensional dynamic complementary grey model to the prediction of volatility data, the buffer operator dynamic complementary grey model is proposed, which improves the problem that the prediction error of the original model to the volatility data is large. Based on the statistical data of water use in Chengdu from 2008 to 2013, after verifying the practicability of the model, the traditional GM (1K1) model, the equal dimensional dynamic complementary GM (1K1) model and the equidimensional dynamic complementary GM (1K1) model with weakening buffer operator are established respectively. This paper forecasts and analyses the water consumption of all kinds in Chengdu by 2020,2025. The results show that the improved model has high prediction accuracy and good practicability and can provide reliable basis for the planning and management of water resources in Chengdu in the future.
【作者單位】: 四川大學(xué);
【分類號】:TV213.4
本文編號:2176009
[Abstract]:In view of the limitation of the equal-dimensional dynamic complementary grey model to the prediction of volatility data, the buffer operator dynamic complementary grey model is proposed, which improves the problem that the prediction error of the original model to the volatility data is large. Based on the statistical data of water use in Chengdu from 2008 to 2013, after verifying the practicability of the model, the traditional GM (1K1) model, the equal dimensional dynamic complementary GM (1K1) model and the equidimensional dynamic complementary GM (1K1) model with weakening buffer operator are established respectively. This paper forecasts and analyses the water consumption of all kinds in Chengdu by 2020,2025. The results show that the improved model has high prediction accuracy and good practicability and can provide reliable basis for the planning and management of water resources in Chengdu in the future.
【作者單位】: 四川大學(xué);
【分類號】:TV213.4
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