价值工程
價值工程
개치공정
VALUE ENGINEERING
2013年
29期
121-123
,共3页
模糊DEA%截集%区间效率%指标子集%熵权
模糊DEA%截集%區間效率%指標子集%熵權
모호DEA%절집%구간효솔%지표자집%적권
fuzzy DEA%cut sets%interval efficiency%index subset%entropy weight
本文首先介绍了前人建立的模糊DEA模型,考虑这些模型存在人为提高效率值、未充分利用模糊信息、计算量过大的问题,建立了一个新的L-R DEA模型,该模型基于α-截集的模糊数变换,将指标集分解为多个指标子集,分别对每个子集进行效率计算,最后应用熵值法确定决策单元(DMU)的最终效率值。该方法可以对DMU进行充分排序,扩大了DEA的应用领域。文末通过一算例来说明新模型的有效性。
本文首先介紹瞭前人建立的模糊DEA模型,攷慮這些模型存在人為提高效率值、未充分利用模糊信息、計算量過大的問題,建立瞭一箇新的L-R DEA模型,該模型基于α-截集的模糊數變換,將指標集分解為多箇指標子集,分彆對每箇子集進行效率計算,最後應用熵值法確定決策單元(DMU)的最終效率值。該方法可以對DMU進行充分排序,擴大瞭DEA的應用領域。文末通過一算例來說明新模型的有效性。
본문수선개소료전인건립적모호DEA모형,고필저사모형존재인위제고효솔치、미충분이용모호신식、계산량과대적문제,건립료일개신적L-R DEA모형,해모형기우α-절집적모호수변환,장지표집분해위다개지표자집,분별대매개자집진행효솔계산,최후응용적치법학정결책단원(DMU)적최종효솔치。해방법가이대DMU진행충분배서,확대료DEA적응용영역。문말통과일산례래설명신모형적유효성。
This paper first introduces the fuzzy DEA model which is created by predecessors. Considering the problems of increasing efficiency value, do not make full use of the fuzzy information and having large amount of calculation in these models, this paper sets up a new L-R DEA model of fuzzy transformation based on α-cut sets. The set is decomposed into several subsets indicators and efficiency is calculated separately for each subset, finally it uses entropy method to determine the final efficiency values of decision-making units. A numerical example is given to illustrate the effectiveness of the new model.