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(复杂系统的性能评价与优化课件资料）OrdinalOptimization—SoftOptimizationforHardProblems
2/40AcknowledgmentJointworkwithProf.Yu-ChiHo（何毓琦）Prof.Qian-ChuanZhao（赵千川）Prof.Xiao-HongGuan（管晓宏）Dr.ChenSong（宋宸）SupportedbyNationalScienceFoundation,ChinaNewCenturyExcellentTalentsinUniversity,China973fundamentalresearchgrants,ChinaArmyResearchOfficeAirForceOfficeofScientificResearch
3/40OutlineBackground:simulation-basedoptimizationOrdinaloptimizationComparisonofselectionrulesConstrainedordinaloptimizationVectorordinaloptimizationApplicationExamplePerformanceoptimizationinaremanufacturingsystemTheWitsenhausenproblemConclusion
4/40Human-madecomplexsystemsTransportationsystemManufacturingsystemCommunicationsystemElectricpowergridSupplychain
5/40Time-consumingsimulationRealsystemPerformanceSimulationtimeRemanufacturingsystemAccuratelyevaluatetheaveragecostofamaintenancestrategyby1000independentsimulations30minutesCongestioncontrolandbuffermanagementinacomputernetworkAsimulationofthe1000-seconddynamicsofa12000-node-single-bottleneckcomputernetwork1.5hoursSecurityevaluationandoptimizationforalargescaleelectricpowergridAsimulationofthe30-seconddynamicsofalargescalepowergridwith5000busesand300generatorsafterafailureevent2hoursSchedulingofatransportationnetworkAsimulationofthe24-hourdynamicsofanetworkwith20intersections2hoursTurbinebladedesignproblemA3Dextrusionsimulationwithfiniteelementmethodology7days
6/40MajordifficultiesSimulation-basedperformanceevaluationTime-consumingsimulationNoisyobservationDiscreteparametersLargedesignspace:curseofdimensionalityNogradientinformation
7/40OrdinalOptimization(OO)OOisanimportanttooltodealwithsimulation-basedoptimization.FirstdevelopedbyProf.Y.-C.Ho,R.S.Sreenivas,andP.Vakiliin1992[Ho,SreenivasandVakili1992].Inthepastdecade,morethan200publicationsandmanysuccess
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