简介：这份报纸考虑最佳的公事包deleveraging的问题，它是在金融的一个关键问题。拿进帐号跨影响的永久、暂时的价格，作者与框限制和单身地二次的限制建立一个二次的程序。在一些假设下面，当二次的限制是活跃的时，作者给最佳的答案必须被完成的最佳的做贸易优先级和表演。进一步，作者为模型建议一个适应Lagrangian算法，在的地方piecewise二次的发现根的方法被用来更多样地发现Lagrangian。算法的集中被建立。作者也介绍一些数字结果，它显示出算法的实用性并且验证最佳的做贸易优先级。

简介：电话中心在过去的十年期间变得世界范围。调用中心管理器考虑的最重要的方面之一是它的操作符的优化，它暗示盖住高度可变的需求并且发现一个有效方法把人分到某些移动以便完成理想的服务水平和放弃率。另一挑战正在决定安装为特定的电话中心是哪个系统适当的。我们应该有一个单个技巧的电话中心或多技巧电话中心吗？如果我们确实有后者，我们应该欺骗多少多技巧代理人职员？在这案例研究，我们产生并且分析分离事件的系统模拟优化模型在实际配置下面并且在跨training的不同层次下面测试一个真实世界的调用中心的行为。模型结果帮助打电话给中心经理由：1)决定操作员的最佳的号码需要让不同职员配置以便为服务水平和放弃完成目标；2)在电话中心关于在关键大小之间的交易提供信息；并且3)关于需要并且使用了每工作时间估计要求完成性能的四小时的移动的号码的操作符的号码提供有用信息指向。我们从这案例研究的试验性的调查结果建议一个双性人技巧电话中心在与一个完整技巧或单个技巧的电话中心相比的长期间经济地更好。这案例研究由为操作管理社区提供另外的经理的卓见扩充知识的电话中心身体。

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简介：Thetraditionaldataenvelopmentanalysis(DEA)modelcanevaluatetherelativeefficienciesofasetofdecisionmakingunits(DMUs)withexactvaluesofinputsandoutputs,butitcannothandleimprecisedata.Imprecisedata,forexample,canbeexpressedintheformoftheintervaldataormixturesofintervaldataandordinaldata.Inthisstudy,across-efficiencymethodisintroducedintotheDEAmodeltocalculatetheintervalofcross-efficiencyvalues,basedonwhichanewTOPSISmethodisproposedtoranktheDMUs.Twoexamplesarepresentedtoillustrateandvalidatetheproposedmethod.

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简介：Macro-trafficmodelisaneffectivetoolforsupportingtrafficprogrammertoThisarticleisbasedonthesoftwareproductsVISEM(demandmodel)andVISUM(supplymodel)fromPTVCompanyofGermany,andstudiesmacro-trafficmodelonthebasisofconsideringthattrafficsystemisaninteractivesystemofbetweenasupplysystemandademandsystem.

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简介：ThispaperconductsanempiricalresearchonthesystemrisksoftheShenzhenStockMarketusingCapitalAssetPricingModel.ThetypicalcompositionstocksonShenzhenStockMarketin1998aretakenassamples.

简介：这篇论文在一所突尼斯的大学里在一个机构处理功课Timetabling问题。我们介绍一个启发式的过程为任何节的每个分部的不同的组进行的所有讲课和教程构造一张可行时间表。我们用所有特定的难、软的限制的一张表描述timetabling问题。我们分别地用相应于讲课和教程的二进制变量的二个集合作为一套线性限制提出这个问题。这启发式在突尼斯为经济的学院和斯法克斯的管理科学的一个分部与真实数据被说明，并且产生时间表与手工地产生的那些相比。另一完整的节的结果证实了好质量求婚启发式什么时候与手工制作的答案相比。

简介：Memberenterprisesengagedinavirtualenterprisearepronetoshirkbothproductiveeffortsandrisksbecausetheireffortsareunobservabletoanyothermemberenterprises.Howtodesignarevenuesharingcontracttopreventthememberenterprisesfromfreeridingisoneofthemostimportantissuestobeconsideredtocutdownrisksthatvirtualenterprisesmaymeet.Basedontheworkofprofitsharinginpartnershipsandtheresearchonrevenuesharinginsupplychainsandjointventures,weproposeamodeloftherevenuesharingcontractaimedatcoordinatingavirtualenterprisecomposedofnrisk-aversememberenterpriseswhereeverymemberenterpriseperformsdifferenttasksandcontributesdistinctcoreresources.Wecharacterizetheoptimalproductiveefforts,risk-takenandincentiveintensityintherevenuesharingcontract,andindicatethatimprovingtheevaluationprecisionofproductiveeffortsandselectingweaklyrisk-aversememberenterpriseswithclosepowerarethekeyfactorstothesuccessofVEs.

简介：Thebasictheoryandmethodofthecombinationforecastingareintroduced.Basedontheactualdatainanairline,thecasestudywaspresented.Inthecasestudy,twobasicforecastingmodelsaresetup,whicharethetime-regressionplusseasonalfactormodelandthelogarithmadditiveWintersmodel.Andtwocombinationmodelsareestablishedwiththebasicmodels,whicharetheoptimalcombinationmodelandtheregressivecombinationmodel.Theresultsofthestudyareguidabletothepractice.

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简介：TourismSatelliteAccount(TSA)isthenewestmethodformeasuringtheimpactoftourismoneconomyintheworld.TherehasbeengloballyabigtrendofdevelopmentofTSAsafteritwasapprovedasainternationalstandardbyUnitedNationsStatisticalCommission(UNSC)inMarchof2000.ThisresearchisafirstpilotexerciseofTSAmethodinChina.Theresultoftheresearchhasdrawnmuchattentionfromthetourismadministrationsandstatisticsofficesatnationallevelandthelocallevels.

简介：Purchaseprocessisanimportantpartintheprocessofrunninganenterprise.Forreengineeringtheprocessof'enterprise,raisebusinessefficiencyofenterprise,makeenterprisecompetitiveamongcomplicatedandchangeablemarketenvironment.Usethemethodofplanningtoevaluatethetechnologymodelingandmethodtosetupevaluationindex,basedonthebasicprinciplebusinessprocessreengineering,studiedthemethodsofmodelingandevaluatingofthereengineeringofthepurchaseprocess.Giventheintactmethodofmodelingprocess.Givethemathematicsexpressmethodandfigureexpressmethodoftheprocess,proposeusingPTreducingratetoevaluatetheeffectoftheprocessreengineer,andhasanalysedthreekindsofsituationsthataffectthereducingrateofPT.

简介：BasedondifferentequationofCobb-Douglasproductionfunction,themodelofregulatingregionaleconomyonthemultiobjectiveoptimizationofefficiencyandequityissetup,withthespatialdistributionstrategyofcapitalandlabourforceasthecontrollingvariable.Twobasicconclusionsdrawnfromthemodelarestrictlydemonstrated:①Acountry＇seconomicdevelopmentisdecidedbytheconsistencybetweentheregionaldistributivestrategyofincrementinvestmentandtheregionaldifferenceinmarginalinvestmentrevenue.②Thecoupletargetsofefficiencyandequityarestrictlyinconflictwitheachother,ifandonlyifthemarginalinvestmentrevenueinthedevelopedregionsishigherthanintheundeveloped,otherwisethetargetsareconsistent.

简介：Accurateandeffectiveassessmentofstrategicalternativesofanorganizationdirectlyaffectsthedecision-makingandexecutionofitsdevelopmentstrategy.Inevaluationofstrategicalternatives,relevantelementsfrombothinternalandexternalenvironmentsofanorganizationmustbeconsidered.Inthispaperweusestrategicassessmentmodeltoevaluatestrategicalternativesofanair-conditioningcompany.Strategicobjectivesandalternativesofthecompanyaredevelopedthroughanalysisofthecompetitiveenvironment,keycompetitorsandinternalconditions.Theenvironmentfactorsareclassifiedintointernal,task,andgeneralopportunitiesandthreats.Analyticalhierarchyprocess,subjectiveprobabilities,entropyconcept,andutilitytheoryareusedtoenhancedecision-maker＇sabilityinevaluatingstrategicalternatives.Theevaluationresultsshowthatthemosteffectivestrategicalternativeforthecompanyistoreducetypesofproducts,concentrateitseffortonproducingwindow-typeandcupboard-typeair-conditioners,enlargetheproductionscale,andpre-emptthemarket.Thecompanyhasmadegreatprogressbyimplementingthisalternative.WeconcludethatSAMisanappropriatetoolforevaluatingstrategicalternatives.