文档介绍：WSRPEVPIVFS??WSRPEEV(VFS)(EVPI)?-I-AbstractAbstractInfuzzydecisionsystems,thisthesis?rstpresentsanewclassoffuzzytwo-stageprogrammingproblemsbyusingcredibilitytheory,,wait-and-seesolution,here-and-nowsolutionandexpectedvaluesolutionarede?nedforfuzzyprogramming,twoindexescalledtheexpectedvalueofperfectinformation(EVPI)andthevalueoffuzzysolution(VFS)aregivenviathethreesolutionconcepts,-stagefuzzyprogrammingisnonconvex,andtheanalyticalexpressionofrecoursefunctioncannotbeobtained,?culty,weintegratefuzzysimulation,-sultsofthenumericalexamplesshowthealgorithmisfeasibleande?,weapplythetwo-.?Fuzzytwo-stageprogrammingmodelisconstructed,andsomepropertiesofthemodelaregiven?Threesolutionconcepts,wait-and-seesolution,here-and-nowsolutionandexpectedvaluesolutionarede?,twoimportantindexes,theexpectedvalueofperfectinformation(EVPI)andthevalueoffuzzysolution(VFS),areintroduced,andtheirrelationsareillustratedvianumericalexamples?Akindofhybridalgorithmisdesignedtosolvetheabove-mentionedmodelKeywords:FuzzyTwo-stageProgramming;FuzzySimulation;EVPI;TabusearchAlgorithm;-II-[6][2,7,24]Inuiguchi.,Ichi-hashiKume[3,4],[5],LaiHwan[8],LiuIwa-mura[9],Liu[10],LiuLiu[13,14],Luhanjula[17],RamikRommedlfanger[19],Sakawa[20],Tanaka,GuoZimmermann[23],Zimmermann[25]InuiguchiRamik[9][10][13,14]Choquetxξf(x,ξ)gj(x,ξ)???maxf(x,ξ)(x,ξ)≤0,j=1,2,...,(x,ξ)gj(x,ξ)≤0(i)xξf(x,ξ)gj(x,ξ)j=1,2,...,{gj(x,ξ)≤0,j=1,2,...,p}≥α,-1-Pos{gj(x,ξ)≤0,j=1,2,...,p}≥α,Nec{gj(x,ξ)≤0,j=1,2,...,p}≥[9]???????{f(x,ξ)≥ˉf}≥βPos{gj(x,ξ)≤0,j=1,2,...,p}≥ααβ???????max[ˉf1,