简介:InthispaperweprovedtheA_p-weightedinequalitiesformartingaletransformsanddifferentialsubordinationsofBanach-space-valuedregularmaringales.Wediscussedtherelationsbetweentheweightedinequalities,A_p-weightfunctionsandtheBanachspaceswhichhastheUMDpropertyorareisomorphictoHilbertspace.
简介:Thispaperdealswiththeblow-uppropertiesofpositivesolutionstoadegenerateandsingularnonlocalparabolicequationwithweightednonlocalboundaryconditions.Underappropriatehypotheses,theglobalexistenceandfinitetimeblow-upofpositivesolutionsareobtained.Furthermore,byusingthepropertiesofGreen'sfunction,wefindthattheblow-upsetoftheblow-upsolutionisthewholedomain(0,a),andthisdiffersfromparabolicequationswithlocalsourcescase.
简介:HKq一,p(w1,w2)并且HKq一,p(w1,w2)C-Z类型的固定单个不可分的操作员被证明。
简介:Forill-posedbilevelprogrammingproblem,theoptimisticsolutionisalwaysthebestdecisionfortheupperlevelbutitisnotalwaysthebestchoiceforbothlevelsiftheauthorsconsiderthemodel'ssatisfactorydegreeinapplication.Toacquireamoresatisfyingsolutionthantheoptimisticonetorealizethetwolevels'mostprofits,thispaperconsidersbothlevels'satisfactorydegreeandconstructsaminimizationproblemofthetwoobjectivefunctionsbyweightedsummation.Then,usingthedualitygapofthelowerlevelasthepenaltyfunction,theauthorstransferthesetwolevelsproblemtoasingleoneandproposeacorrespondingalgorithm.Finally,theauthorsgiveanexampletoshowamoresatisfyingsolutionthantheoptimisticsolutioncanbeachievedbythisalgorithm.
简介:Withtheadvanceofmultimediatechnologyandcommunications,imagesandvideosbecomethemajorstreaminginformationthroughtheInternet.HowtofastretrievedesiredsimilarimagespreciselyfromtheInternetscaleimage/videodatabasesisthemostimportantretrievalcontroltarget.Inthispaper,acloudbasedcontent-basedimageretrieval(CBIR)schemeispresented.Database-categorizingbasedonweighted-invertedindex(DCWII)anddatabasefilteringalgorithm(DFA)isusedtospeedupthefeaturesmatchingprocess.IntheDCWII,theweightsareassignedtodiscretecosinetransform(DCT)coefficientshistogramsandthedatabaseiscategorizedbyweightedfeatures.Inaddition,theDFAfiltersouttheirrelevantimageinthedatabasetoreduceunnecessarycomputationloadingforfeaturesmatching.ExperimentsshowthattheproposedCBIRschemeoutperformspreviousworkintheprecision-recallperformanceandmaintainsmeanaverageprecision(mAP)about0.678inthelarge-scaledatabasecomprisingonemillionimages.Ourschemealsocanreduceabout50%to85%retrievaltimebypre-filteringthedatabase,whichhelpstoimprovetheefficiencyofretrievalsystems.
简介:TheaimofthepresentpaperistoprovenewequivalenceresultsandL_p-staurationresultsonweightedsimultaneousapproximationbythemethodofBernstein-Durrmeyeroperators(includ-ingresultsin[7]).OneofthemaintoolsandcrucialestimatesmanagingtheconverseresultsisgivenbyadirectmodifiedVornorskajatheoremwhichusesthethirdorderweightedmodulusofsmoothness.
简介:Inthispaper,aconstrainedgeneticalgorithm(CGA)isproposedtosolvethesinglemachinetotalweightedtardinessproblem.TheproposedCGAincorporatesdominancerulesfortheproblemunderconsiderationintotheGAoperators.ThisincorporationshouldenabletheproposedCGAtoobtainclosetooptimalsolutionswithmuchlessdeviationandmuchlesscomputationaleffortthantheconventionalGA(UGA).SeveralexperimentswereperformedtocomparethequalityofsolutionsobtainedbythethreeversionsofboththeCGAandtheUGAwiththeresultsobtainedbyadynamicprogrammingapproach.ThecomputationalresultsshowedthattheCGAwasbetterthantheUGAinbothqualityofsolutionsobtainedandtheCPUtimeneededtoobtaintheclosetooptimalsolutions.ThethreeversionsoftheCGAreducedthepercentagedeviationby15.6%,61.95%,and25%respectivelyandobtainedclosetooptimalsolutionswith59%lowerCPUtimethanwhatthethreeversionsoftheUGAdemanded.TheCGAperformedbetterthantheUGAintermsofqualityofsolutionsandcomputationaleffortwhenthepopulationsizeandthenumberofgenerationsaresmaller.
简介:WeobtainseveralestimatesoftheessentialnormsoftheproductsofdifferentiationoperatorsandweightedcompositionoperatorsbetweenweightedBanachspacesofanalyticfunctionswithgeneralweights.Asapplications,wealsogiveestimatesoftheessentialnormsofweightedcompositionoperatorsbetweenweightedBanachspaceofanalyticfunctionsandBloch-typespaces.
简介:Thequalityofasoftwaresystemispartiallydeterminedbyitsstructure(topologicalstructure),sotheneedtoquantitativelyanalyzethequalityofthestructurehasbecomeeminent.Inthispaperanovelmetriccalledsoftwarequalityofstructure(SQoS)ispresentedforquantitativelymeasuringthestructuralqualityofobject-oriented(OO)softwaresviabugpropagationanalysisonweightedsoftwarenetworks(WSNs).First,thesoftwaresystemsaremodeledasaWSN,weightedclassdependencynetwork(WCDN),inwhichclassesarenodesandtheinteractionbetweeneverypairofclassesifanyisadirectededgewithaweightindicatingtheprobabilitythatabuginoneclasswillpropagatetotheother.ThenweanalyzethebugpropagationprocessintheWCDNtogetherwiththebugpronenessofeachclass,andbasedonthis,ametric(SQoS)tomeasurethestructuralqualityofOOsoftwaresasawholeisdeveloped.TheapproachisevaluatedintwocasestudiesonopensourceJavaprogramsusingdifferentsoftwarestructures(oneemploysdesignpatternsandtheotherdoesnot)forthesameOOsoftware.Theresultsofthecasestudiesvalidatetheeffectivenessoftheproposedmetric.TheapproachisfullyautomatedbyatoolwritteninJava.
简介:Objective:Toassessifdiffusion-weightedmagneticresonance(MR)imagingwithoutapparentdiffusioncoefficient(ADC)valuesprovidesaddeddiagnosticvalueincombinationwithconventionalMRimaginginthedetectionandcharacterizationofsmallnodulesincirrhoticliver.Methods:Twoobserversretrospectivelyandindependentlyanalyzed86nodules(≤3cm)certifiedpathologicallyin33patientswithlivercirrhosis,including48hepatocellularcarcinoma(HCC)nodules,13high-gradedysplasticnodules(HDN),10low-gradedysplasticnodules(LDNs)and15otherbenignnodules.AllthesefocalnoduleswereevaluatedwithconventionalMRimages(T1-weighted,T2-weightedanddynamicgadolinium-enhancedimages)andbreath-holddiffusion-weightedimages(DWI)(b=500s/mm2).Thenoduleswereclassifiedbyusingascaleof1-3(1,notseen;3,wellseen)onDWIforqualitativeassessment.Thesesmallnoduleswerecharacterizedbytworadiologists.ADCvaluesweren’tmeasured.ThediagnosticperformanceofthecombinedDWI-conventionalimagesandtheconventionalimagesalonewasevaluatedusingreceiveroperatingcharacteristic(ROC)curves.Theareaunderthecurves(Az),sensitivityandspecificityvaluesforcharacterizingdifferentsmallnoduleswerealsocalculated.Results:Among48HCCnodules,33(68.8%)weregradedas3(wellseen),6(12.5%)weregradedas2(partiallyobscured),and9weren’tseenonDWI.Among13HDNs,therewere3(23.1%)and4(30.8%)gradedas3and2respectively.Five(50%)of10benignnoduleswerepartiallyobscuredandslightlyhyperintense.For86nodules,theaveragediagnosticaccuracyofcombinedDWI-conventionalimageswas82.56%,whichwasincreasedsignificantlycomparedwithconventionalMRimageswith76.17%.ForHCCandHDN,thediagnosticaccuracyofcombinedDWI-conventionalimagesincreasedfrom78.69%to86.07%.Conclusions:Diffusion-weightedMRimagingdoesprovideaddeddiagnosticvalueinthedetectionandcharacterizationofHDNandHCC,anditmaynotbehelpfulforLDNandregenerativenodule(RN)incirrhot
简介:Anindependentmethodforpaper[10]ispresented.WeightedlatticepathsareemumeratedbycountingfunctionwhichisanaturalextensionofGaussianmultinomialcoefficientinthecaseofunrestrictedpaths.Convolutionsforpathcountsareinvestigated.whichyieldssomeVandermonde-typeidentitiesformultinomialandq-multinomialcoefficients.
简介:Theoptimallyweightedleastsquaresestimateandthelinearminimumvarianceestimatearetwoofthemostpopularestimationmethodsforalinearmodel.Inthispaper,theauthorsmakeacomprehensivediscussionabouttherelationshipbetweenthetwoestimates.Firstly,theauthorsconsidertheclassicallinearmodelinwhichthecoefficientmatrixofthelinearmodelisdeterministic,andthenecessaryandsufficientconditionforequivalenceofthetwoestimatesisderived.Moreover,undercertainconditionsonvariancematrixinvertibility,thetwoestimatescanbeidenticalprovidedthattheyusethesameaprioriinformationoftheparameterbeingestimated.Secondly,theauthorsconsiderthelinearmodelwithrandomcoefficientmatrixwhichiscalledtheextendedlinearmodel;undercertainconditionsonvariancematrixinvertibility,itisprovedthattheformeroutperformsthelatterwhenusingthesameaprioriinformationoftheparameter.
简介:在数字调查和WSGM优化的结果上的灰色的气体的加权的和的系数(欧洲电脑生产厂商)当模特儿的插值多项式(WSGM)的重要数字(NSF)的数字的效果被调查。调查在一个研磨开火煤的炉子内用这些过程的数字模拟被进行。煤气的阶段的放射的性质用简单灰色的气体被决定模型(SG),二术语的WSGM(W2),和三术语的WSGM(W3)。有一样的NSF的欧洲电脑生产厂商的十个集合在W2和W3为每个weighting系数被形成。火焰温度,墙温度,和墙的平均、最大的相对差别价值加热流动被决定。除非它超过了某些价值,调查证明数字调查的结果被NSF影响。NSF的增加必然没导致WSGM优化。NSF(CNSF)的联合是为WSGM优化的必要要求。
简介:Inphysicalmodeltestsforhighlyreflectivestructures,oneoftenencountersaproblemofmultiplereflectionsbetweenthereflectivestructuresandthewavemaker.Absorbingwavemakerscancancelthere-reflectivewavesbyadjustingthepaddlemotion.Inthispaper,weproposeamethodtodesignthecontrollerofthe2-Dabsorbingwavemakersysteminthewaveflume.Basedonthefirst-orderwavemakertheory,afrequencydomainabsorptiontransferfunctionisderived.Itstimerealizationcanbeobtainedbydesigninganinfiniteimpulseresponse(IIR)digitalfilter,whichisexpectedtoapproximatetheabsorptiontransferfunctionintheleastsquaressense.AcommonlyusedapproachtodeterminetheparametersoftheIIRfilterisapplyingtheTaylorexpansiontolinearizethefilterformulationandsolvingthelinearleast-squaresproblem.However,theresultisnotoptimalbecausethelinearizationchangestheoriginalobjectivefunction.Toimprovetheapproximationperformance,weproposeaniterativereweightedleast-squares(IRLS)algorithmanddemonstratethatwiththefiltersdesignedbythisalgorithm,theapproximationerrorscanbereduced.Physicalexperimentsarecarriedoutwiththedesignedcontroller.Theresultsshowthatthesystemperformswellforbothregularandirregularwaves.