基于效用值形式偏好信息的大群体决策方法研究

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1、中南大学硕士学位论文基于效用值形式偏好信息的大群体决策方法研究姓名：王红伟申请学位级别：硕士专业：管理科学与工程指导教师：徐选华20081122题和属性值以不确定语言变量形式给出的大群体决策问题。(4)提出了解决属性值以实数型效用值形式给出的时序多属性大群体决策问题的方法。首先将各时段的多属性大群体决策问题转化为该时段的单属性大群体决策问题，得到各时段的群体决策结果；最后，将时序权重向量与群体决策结果矩阵合成，得到最终的群体决策结果。(5)利用MatlabGUI开发了基于本文所提方法的大群体决策系统，使得该方法拥有很强的应用前景。关键词效用值，大群体，群决策，反映度，差异度玎AB

2、STRACTAlongwiththecomplexityofsocialandeconomicenvironment，thedifficultyofmanagementanddecision—makingtask，groupdecision—makinghasbeenahottopicandtheleadingedgeofnowadaysdecision—makingtheoryresearch．Duetogroupislarge，membersofgrouparedispersive，decision—makingtimeandpositionisunfixed，whichme

3、ansneedingmorememberstoparticipateindecision-making．Thedecision-makinggrouphasbeenacomplexlargegroup．Nowadaysmostgroupdecision-makingmethodsareforsmallgroup，manyofwhichcannotbeusedtolargegroupdecision-making．Preferenceinformationbasedonutilityvaluegivenbyexpeashasmanymerits，suchassimple，easet

4、ouseandSOon，butresearchesonthisaspectaredisorder,andhavenotformasystem．Aimattheproblemoflargegroupdecision—makingbasedonutilityvaluedpreferenceinformation，thepaperputsforwardamethodsystemtosolvethisproblem．Themajorworksofthepapermainlyincludesfollowingfewaspects：(1)Detailedanalyzedtheresearch

5、actualityanddevelopingdirectionofgroupdecision-makingtheoryandmethod，groupdecision—makingsupportsystem，providetheorysupportforfurtherresearch．(2)Aseriesofmethodswasputtedforwardtosolvetheproblemoflargegroupdecision—makingbasedonutilityvaluedpreferenceinformation，formingamethodsystemtosolvethi

6、sproblem．Firstly，theentropyweightmethodwasbroughttoappraisedecisionmembers’information，todeletethesememberswhoprovidelessinformationandtopredigestgroupdecision—makingprocess．Secondly,classifythesemembersusingtheclusteringmethod，toconfirmmembers’weightsbyuseoftheclusteringresult，andobtaintheor

7、deringvectorofdecisionschemesthroughthesynthesizingofmembers’weightvectorandutilitymatrix．Thenputforwardtheindexofmembers’opinionreflectiondegreetomeasurethedegreeofmembers’opinionisreflectedbydecision-makingresult，evaluatetheresultofgroupdec