河流健康評價中賦權(quán)方法的研究
發(fā)布時間:2019-06-06 21:10
【摘要】:河流健康評價體系中指標(biāo)眾多,指標(biāo)權(quán)重的確定是關(guān)鍵步驟之一。針對指標(biāo)權(quán)重計算的問題,首先介紹了層次分析法、熵值法、超標(biāo)倍數(shù)法及主成分分析法四種指標(biāo)權(quán)重賦權(quán)方法,再基于離差平方和準(zhǔn)則構(gòu)造最優(yōu)化組合賦權(quán)法,將四種賦權(quán)方法結(jié)合,并采用指數(shù)型隸屬函數(shù)得到模糊關(guān)系矩陣。對比各種方法的評價結(jié)果,并應(yīng)用到某市河流健康評價中,不同賦權(quán)方法的計算結(jié)果均表明該河流健康狀況為良,符合實際情況,表明不同賦權(quán)方法均有其合理性,為河流健康評價研究奠定了基礎(chǔ)。
[Abstract]:There are many indexes in river health evaluation system, and the determination of index weight is one of the key steps. In order to solve the problem of index weight calculation, this paper first introduces four index weight weighting methods: analytic hierarchy process (AHP), entropy method, excess multiple method and principal component analysis method, and then constructs the optimal combination weighting method based on the sum of square of deviation. The fuzzy relation matrix is obtained by combining the four weighted methods and using the exponential membership function. Compared with the evaluation results of various methods and applied to the river health evaluation of a city, the calculation results of different weighting methods show that the health status of the river is good, which is in line with the actual situation, and indicates that different weighting methods are reasonable. It lays a foundation for the study of river health evaluation.
【作者單位】: 河海大學(xué)水文水資源學(xué)院;句容水利農(nóng)機局;江蘇省水利勘測設(shè)計研究院有限公司;
【基金】:國家重點基礎(chǔ)研究發(fā)展計劃(973計劃)(2012CB417006) “十一五”國家科技支撐計劃項目(2009BAC56B03)
【分類號】:X824;TV213.4
本文編號:2494601
[Abstract]:There are many indexes in river health evaluation system, and the determination of index weight is one of the key steps. In order to solve the problem of index weight calculation, this paper first introduces four index weight weighting methods: analytic hierarchy process (AHP), entropy method, excess multiple method and principal component analysis method, and then constructs the optimal combination weighting method based on the sum of square of deviation. The fuzzy relation matrix is obtained by combining the four weighted methods and using the exponential membership function. Compared with the evaluation results of various methods and applied to the river health evaluation of a city, the calculation results of different weighting methods show that the health status of the river is good, which is in line with the actual situation, and indicates that different weighting methods are reasonable. It lays a foundation for the study of river health evaluation.
【作者單位】: 河海大學(xué)水文水資源學(xué)院;句容水利農(nóng)機局;江蘇省水利勘測設(shè)計研究院有限公司;
【基金】:國家重點基礎(chǔ)研究發(fā)展計劃(973計劃)(2012CB417006) “十一五”國家科技支撐計劃項目(2009BAC56B03)
【分類號】:X824;TV213.4
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