简介:在顺序的拍卖,衰退价格的现象经常被观察,在理论,罐头它被supermartingale代表。这份报纸采用投标人价值可以在阶段上改变,普通priors被留下的投标人顺序调整的观点。衰退价格顺序能被在拍卖之间的普通priors的调整解释,这被显示出。普通priors的调整被随机的订单描绘。为一个supermartingale价格序列的足够、必要的条件被导出。
简介:Thispaperrepresentsaninexactsequentialquadraticprogramming(SQP)algorithmwhichcansolvenonlinearprogramming(NLP)problems.Aninexactsolutionofthequadraticprogrammingsubproblemisdeterminedbyaprojectionandcontractionmethodsuchthatonlymatrix-vectorproductisrequired.SometruncatedcriteriaarechosensuchthatthealgorithmissuitabletolargescaleNLPproblem.Theglobalconvergenceofthealgorithmisproved.
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简介:Inordertoslovethelarge-scalenonlinearprogramming(NLP)problemsefficiently,anefficientoptimizationalgorithmbasedonreducedsequentialquadraticprogramming(rSQP)andautomaticdifferentiation(AD)ispresentedinthispaper.Withthecharacteristicsofsparseness,relativelylowdegreesoffreedomandequalityconstraintsutilized,thenonlinearprogrammingproblemissolvedbyimprovedrSQPsolver.Inthesolvingprocess,ADtechnologyisusedtoobtainaccurategradientinformation.Thenumericalresultsshowthatthecombinedalgorithm,whichissuitableforlarge-scaleprocessoptimizationproblems,cancalculatemoreefficientlythanrSQPitself.
简介:Visualfiredetectiontechnologiescandetectfireandalarmwarningsearlierthanconventionalfiredetectors.Thisstudyproposesaneffectivevisualfiredetectionmethodthatcombinesthestatisticalfirecolormodelandsequentialpatternminingtechnologytodetectfireinanimage.Furthermore,theproposedmethodalsosupportsreal-timefiredetectionbyintegratingadaptivebackgroundsubtractiontechnologies.Experimentalresultsshowthattheproposedmethodcaneffectivelydetectfireintestimagesandvideos.ThedetectionaccuracyoftheproposedhybridmethodisbetterthanthatofCelik’smethod.
简介:Inthispaperourstudiesaboutthesequentialtestingprogramforpredictingandidentificatingcarcinogens,sequentialdiscriminantmethodandcost-effectivenessanalysisaresummarized.Theanalysisofourdatabaseofcarcinogenicltyandgenotoxicityofchemicalsdemonstratestheuncertainty.ofshort-termtests(STTs)topredictcarcinogensandtheresultsofmostroutineSTTsarestatisticallydependent.WerecommendthesequentialtestingprogramcombiningSTTsandcarclnogenicityassay,theoptimalSTTbatteries,therulesofthesequentialdiscriminationandthepreferalchoicesofSTTstorspecificchemicalclass.Forillustrativepmposesthecarclnogenicitypredictionofseveralsamplechamicalsispresented.Theresultsofcost-effectivenessanalysissuggestthatthisprogramhasvastsocial-economiceffectiveness.
简介:InthispaperwereanalyzeSaid’s(2011)workbyretainingallhisassumptionsexceptthatweusethefirst-priceauctiontoselldifferentiatedgoodstobuyersindynamicmarketsinsteadofthesecond-priceauction.Weconcludethatexceptfortheexpressionoftheequilibriumbiddingstrategy,alltheresultsforthefirst-priceauctionareexactlythesameasthecorrespondingonesforthesecond-priceauctionestablishedbySaid(2011).Thisimpliesthatthewell-known'revenueequivalencetheorem'holdstrueforSaid’s(2011)dynamicmodelsetting.
简介:Sequentialmeasurementprocessingisofbenefittobothestimationaccuracyandcomputationalefficiency.Whenthenoisesarecorrelatedacrossthemeasurementcomponents,decorrelationbasedoncovariancematrixfactorizationisrequiredinthepreviousmethodsinordertoperformsequentialupdatesproperly.Anewsequentialprocessingmethod,whichcarriesoutthesequentialupdatesdirectlyusingthecorrelatedmeasurementcomponents,isproposed.Andatypicalsequentialprocessingexampleisinvestigated,wheretheconvertedpositionmeasurementsareusedtoestimatetargetstatesbystandardKalmanfilteringequationsandtheconvertedDopplermeasurementsarethenincorporatedintoaminimummeansquarederror(MMSE)estimatorwiththeupdatedcross-covarianceinvolvedtoaccountforthecorrelatederrors.Numericalsimulationsdemonstratethesuperiorityoftheproposednewsequentialprocessingintermsofbetteraccuracyandconsistencythantheconventionalsequentialfilterbasedonmeasurementdecorrelation.
简介:Asequentialstatisticalapproachwasappliedtooptimizingthefermentationmediumofepothilones(Epos)productionbymeansofamutantwhichwasobtainedbytreatingpolyangiumcellulosumATCC15384withnitriteandultraviolet.Theeffectsofdifferentcarbonsourcesandnitrogensourcesonthefermentationmediumweretested,andthesuitableoneswereselected.Thenauniformdesignwasemployedtodesigntheexperiments.Alinearmodelwasdevelopedforidentifyingthesignificantcomponentsinfermentationmedium,whileathirddegreepolynomialmodelwasusedforstudyingtherelationshipbetweentheconcentrationofthecomponentsinfermentationmediumandtheyieldofEpos(YEPs).Apatternsearchmethodwasusedforsearchingtheoptimumfermentationmediuminthetestspace,whichwasasfollows(g/L):potassiumnitrate8.00,soybeanpeptone17.60,potassiumhydrogenphosphate1.00,beefextraction6.46,yeastextraction1.00,calciumchloride0.25,sodiumchloride1.00andferricchloride0.02.TheoptimumfermentationmediumwasexpectedtoresultinayieldofEpos(YEPs)of2.48mg/L.ThevalidationexperimentswiththeoptimummediumwereperformedintriplicateandtheaverageyieldofEposwas2.45mg/Lwhichwas7.78timeshigherthanthatofEpospreparedwithoutoptimization.
简介:In1980'sdifferentialgeometricmethodsaresuccessfullyusedtostudycurvedexpomentialfamiliesandnormalnonlinearregressionmodels.Thispaperpresentsanewgeometricstructuretostudymultinomialdistributionmodelswhichcontainasetofnonlinearparameters.Basedonthisgeometricstructure,thesuthorsstudyseveralasymptoticpropertiesforsequentialestimation.Thebias,thevarianceandtheinformationlossofthesequentialestimatesaregivenfromgeomentricviewpoint,andalimittheoremconnectedwiththeobservedandexpectedFisherinformationisobtainedintermsofcurvatvremeasures.Theresultsshowthatthesequentialestimationprocedncehassomebetterpropertieswhicharegenerallyimpossiblefornonsequentialestimationprocedures.
简介:Inthispaper,anewgloballyconvergentalgorithmfornonlinearoptimizationproblemswithequalityandinequalityconstraintsispresented.ThenewalgorithmisofSQPtypewhichdeterminesasearchdirectionbysolvingaquadraticprogrammingsubproblemperiteration.Somerevisionsonthequadraticprogrammingsubproblemhavebeenmadeinsuchawaythattheassociatedconstraintregionisnonemptyforeachpointxgeneratedbythealgorithm,i.e.,thesubproblemsalwayshaveoptimalsolutions.Thenewalgorithmhastwoimportantproperties.Thecomputationofrevisionparameterforguaranteeingtheconsistencyofquadraticsubproblemandthecomputationofthesecondordercorrectionstepforsuperlinearconvergenceusethesameinverseofamatrixperiteration,sothecomputationamountofthenewalgorithmwillnotbeincreasedmuchmorethanotherSQPtypealgorithms;Anotheristhatthenewalgorithmcangiveautomaticallyafeasiblepointasastartingpointforthequadraticsubproblemsperiteration,thiswillobivouslysimplifythecomputationprocedureofthesubproblems.Somenumericalresultsarereported.
简介:Microporoustitaniumcarbidecoatingwassuccessfullysynthesizedonmedicalgradetitaniumalloybyusingsequentialcarburization.Changesinthesurfacemorphologyoftitaniumalloyoccasionedbysequentialcarburizationwerecharacterizedandthewettabilitycharacteristicswerequantified.Furthermore,thedispersionforceswerecalculatedanddiscussed.Theresultsindicatethatsequentialcarburizationisaneffectivewaytomodifythewettabilityoftitaniumalloy.Afterthecarburizationthesurfacedispersionforceoftitaniumalloyincreasedfrom76.5×10-3J·m-2to105.5×10-3J·m-2,withanenhancementof37.9%.Meanwhilethecontactangleoftitaniumalloydecreasedfrom83°to71.5°,indicatingasignificantimprovementofwettability,whichismuchclosertotheoptimalwatercontactangleforcelladhesionof70°.
简介:Basedonanalyzingsignificanceofcontrollingclockindesignoflowpowersequentialcircuits,thispaperproposesatechniquethatthegatingsignalisderivedfromthemasterlatchinaflip-floptomakethederivedclockhavingnoglitchandnoskew.Thedesignofadecimalcounterwithhalf-frequencydivisionshowsthatbyusingthesynchronousderivedclockthecounterhaslowerpowerdissipationaswellassimplercombinationallogic.Computersimulationshows20%powersaving.
简介:HASM(当模特儿的高精确性表面)技术基于表面的基本理论,它被证明了在表面适合改进插值精确性。然而,在以前的研究的不可分的反复的解决方案在计算和巨大的存储器用法导致了高时间的复杂性以便把这种技术放进申请变得困难,特别为大规模数据集。在学习,一个创新模型(HASM广告)根据数据调整理论根据顺序的最少的广场被开发。顺序的分割在这种技术被采用,以便线性方程能被划分成在顺序要处理,时间的复杂性在计算极大地减少了的组。实验显示HASM广告技术在精确性超过传统的空间插值方法。另外,交叉验证结果为土壤PH性质的空间插值证明一样的结论,数据在江西省取样了。而且,HASM广告技术显著地减少计算复杂性并且在计算减少记忆用法,这在学习被表明。