Generalized weighted functional proportional mean combining forecasting model and its method of parameter estimation

1 .INTRODUCTIONCombiningforecastinghasbroughtgreatattentiontobytheforecastingcirclessince 196 9whenJ .M .BatesandC .W .J .Grangerproposeditstheoryandmethod[1] .Thetheoryandmethodsofcombiningforecastinghavebeendevelopedwidelyinrecentyears .Forpracticalcase…     

Convergence Rate and Convergence of Genetic Algorithms

IntroductionTheanalysisfortheconvergencerateandconvergenceofthegeneticalgorithmsisveryimportanttounderstanditsproperties.Manyresultshavebeenmadeinthispield.A.E.Eib..[1]hasprovedthataclassofabstractgeneticalgorithms(AGA's)convergewithprobabilityoneunderelitistselection.G.Rudolphl']hasstudiedtileasymptoticconvergenceofthecannonicalgeneticalgorithms(CGA's),buttheresultsdonotcoverthecaseofelitistselection.SomeotherimportanttheoreticalanalysesforGA'shavebeencontributedbyD.B.Foge'[']andX.Qi['…     

HEAVY RANDOM CENSORING LIMIT THEOREMS

1.IntroductionOurproblemistoestimatethedistributionfunctionFandthecumulativehazardfunctionAofsomenonnegativerandomvariableX,whereXisthelifetimeinaparticularstateofanindividual.Samplinglifetimehasanumberofrestrictions.Asanexample,thelifetimedatacanberightcensored.TObespecific,supposeXI,X2,...Xuarei.i.d.nonnegativerandomvariableswhicharecensoredontherightbynfollow-upi.i.d.timesYI,Y2,...Yn.LetF(x)=P(XI5x),A(x)~I"Mic1~F-bethedistributionfUnctionandcumulativehazardfunctionofX.Wesaythatthe…     

Journal of Systems Science and Complexity (Editorial Board)

一一一一—,Editor一in一Chief:L .GUO(Ch乞na)Advisors:H .F.cHEN(Ch乞。a)5 .w.CHENG(Ch‘na)R .w.DAI(Ch‘、a)B .L.HAO(Ch乞na)G .J.KLIR(〔巧八)J .SONG(Ch乞。a)T .J.TARN(口S八)Managing Editors:F .L.Ll(Ch坛。a)5 .Y.、、叭NG(Ch云na)Editors:N .ANDREI(Rooa。‘a)X .Q.CAI(刀万,Ch‘。a)X .R.CAO(万兀,Ch乞。a)x .L.eHAo(‘s八)G .R.CHEN(万兀,Ch讯aH .CHEN(Canada)Y .CHEN(Ch认a)D .2.CHENG(Ch乞。a)F .K.队NG(Ch‘、a)x .5.GAO(Ch乞。a)H .J.HuANG(Ch乞。a)J .H.Ll(Ch￡。…     

ASYMPTOTIC BEHAVIOR OF NONAUTOMOMOUSDIFFUSIVE LOTKA-VOLTERRA MODEL

1.IntroductionOneofthemostillterestingquestionsinmathematicalbiologyistodiscusstheboundednessandasymptoticbehaviorofthediffusiveLotka-Volterramodel.Severalauthorshaveconsideredthiskindofquestions.Y.Takeuchill]showedtheglobalstabilityofdiffusivecoOPerativesystemundersomeconditions.FergolaandTemneriellol2]gavesomeconditionsforultimateboundedness.Y.Takeuchil31discussedthepersistenceofatwospeciesmodel.2.FormulationoftheProblemandNotationWeconsiderthefollowingeqllations:whereal(t),ei(t),hi(t),…     

Planar Motion Tracking with an Uncalibrated Robot/Vision System

1.INTSODUCTIONtraditionallythemodelofarobothand/eyecoordinationsystemmustbeestimatedanddeterminedinadvanceforsystemcolltrol.Thisformsthetaskofsystemcalibration.Asystemcalibrationissomewhatthecombinationoftheoreticalresearchandengineeringrealization.Theaccuracyofasystemmodelismorelikelydependentonthetechniqueofengineeringrealizationthantheresearchesontheoreticalmethod.Realizationofthecalibrationmethodisthebottleneckfortheaccuracyofresultantmodelapproachingitstheoreticalvalue.Thisisthemainr…     

THE ASYMPTOTICS OF THE INTEGRATEDSQUARE ERROR FOR THE KERNEL HAZARD RATEESTIMATORS WITH LEFT TRENCATED ANDRIGHT CENSORED DATA

1.IntroductionandMainResultsInmanysituations,asforexampleinmedicalfollow-uporinengineeringlifetestingstudies,onemaynotbeabletoobservethevariableofinterest.Lefttruncationandrightcensoringaretwocommonformsinwhichincompletedatamadappear.Lefttruncationmayoccurifthetimeoriginofthelifetimeprecedesthetimeoriginofthestudy.Oncehavingeageredintothestudytheindividualsaresubjecttotheusualrightcensoring.Lefttruncationandrightcensoringmadhappensimultaneously.Censoringhasbeenreceivingconsiderableattentionf…     

ON AVOIDING ASSOCIATION PARADOXES INCONTINGENCY TABLES

1.IntroductionConsiderathree-waycolltingencytablethatdisplaystheassociationbetweentwocategoricalvariablesatseverallevelsofathirdvariable.Whenthedirectionsofassociationintheseparatepartialtablesareidentical,onenaturallyexpectsthatthesamedirectionofassociationoccursinthemarginaltable.Thisisnotalwaysthecase.Counterintuitiveresultscanresultfromamalgamatingagroupofcontingencytables.Thedirectionofassociationintheseparatetablesmayreversewhenthetablesarecombined.Therefore,oneshouldbeverycautiouswhenc…     

ON THE CONDITION FOR CONSISTENCY OF RESAMPLING ESTIMATORS OF VARIANCE OF TRIMMED L-STATISTICS

1.IntroductionLetXI,X2,''tX.beani.i.d.randomsamplewithcommondistributionfunction(c.d.f.)F(unknown),andFibetheempiricaldistributionfunction(e.d.f.)basedonthesample.ConsiderthefollowingfunctionalofFwhereF--'(t)ginf{x:F(x)2t}istheinversefunctionofF(inversef…     

Study on Method of Comprehensive Evaluating for Information System Projects

1.INTRODUCTIONHumansocietywillgetintoinformationtime,accompaniedwithding-dongofthenewcentury.Aninformationtechnicalrevolutionissweepingovertheworld.ItisoneoftheprincipalforcesbehindtheraPidchangesofconstructionofeconoInymanagemelltofproduction,andpatternofliving.Itisakeylinkofinformationsocietiesthatinformationsystemsarebui1t.Therequestsofevauatingioformationsystemprojectsareadvancedbecauseagreatdealinformationsystemswelledup.Informationsystemprojectshavealotofparticularcharacterscompare…     

A VARIATION OF GOLDFARB'S METHOD FOR LINEARLY CONSTRAINED OPTIMIZATIONPROBLEMS AND ITS SUPERLINEAR CONVERGENCE RATE

1.IntroductionRosen'sgradientprojectionmethodisaveryinterestingtechniqueinoptimization(see[1,2]),butitsglobalconvergenceisalong-standingopenproblemintheliterature.Thefirstconvergentversionwasfoundbyp.l.k[3].ButPolak'sversionistoocomplicated.Du[4]alsofoundasimplerconvergentversionbydeletingPolak'sspecialprocedure.CombiningRosen'smethodwithvariablemetricmethods,Goldfarb[sl,MurtaghandSargentl'lobtainedtwoefficientalgorithms.Theconvergenceofsuchalgorithmsisstillanopenproblem.However,severalcon…     

METHODS OF ESTIMATION FOR QUASI-INDEPENDENCE IN CONTINGENCY TABLES

1.IntroductionAnUInberofauthorshaveconsideredtheproblemoffittingmodelsofquasi-independencetocontingenCytabledatawhichareeithertriangUlarorhaveanexcludeddiagonal.hithispaperthevariousmethodsproposedforfittingthesemodelsarecompared.ItisthenshoWnthstparameterestimatesarethesamefordifferentmodelsinsomecases.Anew,verysample,easytoimplemeDtalgoritlunispreseDted.Finallysomepreviousiterstivemethodsarecomparedwiththenewmethod.2.Quasi-IndependenceModeisforContingencyamblesSupposethatatwo-waycolltin…     

BOUNDED COMPOSITION OPERATORS ON HARDY SPACES (Ⅱ)

1.IntroductionLetB.betheunitballofC",S.betheboundaryofB.,anbetherotation--invariantpositiveBorelmeasureonS.forwhichu.(S.)=1,HP(B.)bethecalssicalHardyspace.SupposeW:B.-- Baisananalyticmap,foranyfEHP(B.),writethecompositionfoWasCaf.C.isusuallysaidtobea...     

Characteristic Properties of Perspective Sets for Finite Stochastic Decision

1.INTRODUCTIONConsequenceswilloccuruncertainlyilldecisionwithprobability,becallseoftheuncertainticofstates.Naturallyweshouldcollsidertheuncertaillt}'whelltheutilityofcollsequen"esis'liscussed.1\reindicatetilesetofally{CI.CZ.''.C,,}withtilecorrespondillgsetI)ofprobabilities{pl,p2,''.p,,}sucllthat'Epi=1.SettingP=(pl.CI;I)2.C2;'':p,,.C,,),]=[wecallPasaperspective.ThesetofallPerspectivederivedby'{CI.C2,'',C,,}isilldicatedby9,thatis,RatiollalBehaviorAxiomsassureth…     

A Slip-Line Method for Calculating Extrusion Force of Steel Helmet with Cold Extrusion Moulding

1.TEEPLASTICDEFO~Af1ONOFSTEELELLIPSETHINPLMESteelhelmetwithcoldextrusionmouldingisdesignedaccordingtothestandardGB2428(wherethestandardheadsizeofapadultmanisgiven).Accordingtothestandardheadsizeoftheadultman,theconcaveandconvexmodelofsteelhelmetwithcoldextrusionmouldingisdesigned.Theconvexmodelisatensilemodelwithcomplexparabolashape.Thesteelthinplateedgemustbepressedundertwo-wayhydraulicpress.ThesimplifiedcalculatingmodelisshowninFig.1.Theedgeissimplifiedasfixedellipseboundar…     

A Positive Comparative Study of Regional Human Resources Quality

1　IntroductionItiswellknownthathumanresourcesareessentialforeconomicoutput.Theinvestmentofhumanresourcescanbemeasuredintworespects,i.e.thequantityofhumanresourcesandthequalityofhumanresources.Theformerreferstotheamountofinvestedmanpow-erandthelatterreferstoefficiencywithwhichtheinvestedhumanresourcesbringeco-nomicoutput.Atpresent,socialeconomistsareoftheopinionthattheeconomicdevelop-mentlevelofaregionispositivelyinfluencedbythehumanresourcesquality.Withthede-velopmentofscienceandtechnology,t…     

Multisensor fusion for an experimental airship based on strong tracking filter

1.INTRODUCTION Theinterestinairshipfilledbygasisbooming.It willnotonlyserveasacommunicationrelaystation,butalsobeusedinsurveillance,explorationandmon itoring.Accuratedataacquisitionofposition,velocity andattitudeviaitsmeasurementsystemisindispens abletocontrolitsflyingorkeepingfix point.The measurementsystemshouldbesmallandlight.Ital soshouldhavecertaindynamicsmeasurementability.Usually,DGPSreceiveranddigitalmagnetic compassprovidebasicpositioningandattitudeinfor mationstandalone.DGPS…     

A New Aim-Points-Choosing Model for Attacking Mobile Missile Systems

1.INTRODUCTIONTheproblemofattackingmobilemissilehasbecomeverycomplexanddifficultforitsmaneuveringandenshrouding.Anditisanimportantissueonoperatingweaponsystems.ThishasbeenprovedinPersiaGulfWar.Thefirststeptoattackmobilemissilesistogetthetargetinformation.Themostimportantthingistoknowthetargetnumbersandtodetectthetargetlocationontime,whichisdifficultinfact.Itrequiresalargenumberofwarheadstocoveroverthedeploymentbasetodisabletheopponent'smissilesinsteadofaimingatthelaunchersdirectlytoatta…     

An Application of Dynamic Structure Model to SoilCorrosion Research

IntroductionJ.Kaneetal.foundasimulatorcalledthedynamicstructuremodelatthebeginningof1970s.Itcanbeusedtosimulatethedynamiceffectsofvariablesinthedynamicstructuralsystemmodel,thusitbecameasfamousasthesystemdynamicsfoundbyJ.W.Forresterin1961.Atpresent,thismodelissuccessfullyappliedtomanyfieldssuchaspublichealthwork,hydroelectricresourcesprogramme,transportationplanning,ecosystemanalysis,etc..Soilcorrosionisacomplexenyironmentalproblemrelatingtoalotoffactors.Asacomplicatedsystem,thesoilcorrosion…