简介：Thispaperpresentsanewmethodforrobustandaccurateopticalflowestimation.Thesig-nificanceofthisworkistwofold.Firstly,theideaofbi-directionalschemeisadoptedtoreducethemodelerrorofopticalflowequation,whichallowsthesecondorderTaylor'sexpansionofopticalflowequationforaccuratesolutionwithoutmuchextracomputationalburden;Secondly,thispaperestablishsanewopticalflowequationbasedonLSCM(LocalStructureConstancyModel)insteadofBCM(BrightnessConstancyModel),namelytheopticalflowequationdoesnotactonscalarbutontensor-valued(ma-trix-valued)field,duetothetworeason:(1)structuretensor-valuecontainslocalspatialstructureinformation,whichprovidesusmoreuseablecuesforcomputationthanscalar;(2)localimagestructureislesssensitivetoilluminationvariationthanintensity,whichweakensthedisturbanceofnon-uniformilluminationinrealsequences.Qualitativeandquantitativeresultsforsyntheticandreal-worldscenesshowthatthenewmethodcanproduceanaccurateandrobustresults.

简介：进化计算在理论分析和工业应用在最后十年经历了巨大的生长。它的范围向许多性质在它“生物进化”的原来的意思以外演变启发了计算算法和技术，包括进化、神经、生态、社会、节俭的计算，等等，在一个统一框架。在进化计算的许多研究话题现在未必是“进化”的。这篇论文在在伯明翰的大学在CERCIA被做了的进化计算提供一些最近的进展的概述，英国。Itcovers在优化的大量话题，学习并且用进化途径和技术的设计，和在进化算法的计算时间复杂性的理论结果。与进化计算的未来开发有关的一些问题也被讨论。

简介：Asweknow,Newton'sinterpolationpolynomialisbasedondivideddiffer-enceswhichcanbecalculatedrecursivelybythedivided-differenceschemewhileThiele'sinterpolatingcontinuedfractionsaregearedtowardsdeterminingarationalfunctionwhichcanalsobecalculatedrecursivelybyso-calledinversedifferences.Inthispaper,bothNewton'sinterpolationpolynomialandThiele'sinterpolatingcontinuedfractionsareincorporatedtoyieldakindofbivariatevectorvaluedblendingrationalinterpolantsbymeansoftheSamelsoninverse.Blendingdifferencesareintroducedtocalculatetheblendingrationalinterpolantsrecursively,algorithmandmatrix-valuedcasearedis-cussedandanumericalexampleisgiventoillustratetheefficiencyofthealgorithm.

简介：非线性的数字方法被使用解决viscous-elastic-plastic材料影响问题。有限元素模拟同意庆祝欧洲碰撞安全分析。在大变丑的复杂材料压力分发被获得了，当影响发生时。另外，以后的估计解答者和asymptotic分析被用于敏感预先上演在发生的影响前的变丑。模拟的这部分为在汽车的保护设备的被动安全很有趣。它是数学建模的重要部分。

简介：Inthispaper,weuseakindofmainpartsymmetryschemetostudythecentermanifoldsandHopfbifurcationsforODEs,andsetupakindofmethodforcalculationthem.

简介：ＡｎＡｐｐｒｏａｃｈｔｏＲＣＳＣｏｍｐｕｔａｔｉｏｎｆｏｒＣｏｍｐｌｅｘＴａｒｇｅｔｓＺｈａｏＷｅｉｊｉａｎｇ＆ＷａｎｇＭａｏｇｕａｎｇＸｉｄｉａｎＵｎｉｖｅｒｓｉｔｙ，Ｘｉ’ａｎ７１００７１，Ｐ．Ｒ．Ｃｈｉｎａ（ＲｅｃｅｉｖｅｄＡｕｇｕｓｔ９，１９...

简介：我们构造其进化收敛到一个一般方形的矩阵的特徵向量的动态系统的一个家庭，不是必然对称。我们分析那些系统的集中并且执行数字测试。有力量方法的一些例子和比较被举。

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简介：Theunsteadyhydrodynamicsofabiomimeticfinattachedtoacylindricalbodyhasbeenstudiednumericallyusingacomputationalfluiddynamic(CFD)simulatorbasedonanin-housesolveroftheNavier-Stokesequations,combinedwitharecentlydevelopedmulti-block,oversetgridmethod.Thefin-bodyCFDmodelisbasedonamechanicalpectoralfindevice,whichconsistsofacylindricalbodyandanasymmetricfinandcanmimicflapping,rowingandfeatheringmotionsofthepectoralfinsinfishes.Firstthemulti-block,oversetgridmethodincorporatedintotheNSsolverwasverifiedthroughanextensivestudyofunsteadyflowspastasinglefinundergoingrowingandfeatheringmotion.Thenunsteadyflowspastthebiomimeticfin-bodymodelundergoingthesamemotionswerecomputedandcomparedwiththemeasurementsofforcesofthemechanicalpectoralfin,whichshowsgoodagreementinbothtime-varyingandtime-averagedhydrodynamicforces.Therelationshipbetweenforcegenerationandvortexdynamicspointstotheimportanceofthematchinfinkinematicsbetweenpowerandrecoverystrokesandimpliesthatanoptimalselectionofparametersofphaselagsbetweenandamplitudesofrowingandfeatheringmotionscanimprovetheperformanceoflabriformpropulsionintermsofeithermaximumforcegenerationorminimummechanicalpower.

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简介：ThispaperpresentsamethodforthecomputationoftheStokesfor-mulausingtheFastHartleyTransform（FHT）techniques.Thealgorithmismostsuitableforthecomputationofrealsequencetransform,whiletheFastFourierTransform（FFT）techniquesaremoresuitableforthecomputatonofcomplexse-quencetransform.Amethodofsphericalcoordinatetransformationispresentedinthispaper.Bythismethodtheerrors,whichareduetotheapproximatetermintheconvolutionofStokesformula,canbeeffectivelyeliminated.Somenumericaltestsaregiven.ByacomparisonwithbothFFTtechniquesandnumericalintegra-tionmethod,theresultsshowthattheresultingvaluesofgeoidalundulationsbyFHTtechniquesarealmostthesameasbyFFTtechniques,andthecomputation-alspeedofFHTtechniquesisabouttwotimesfasterthanthatofFFTtechniques.

简介：ThispapershowsafairlysimplemethodofliftingChandramatricestoexplainGoldbachconjecture,byliftingwemeantoaddanaturenumbertoeveryelementofthematrix,inthiswayweconstructedasetofChandramatrices,whichareequivalenttoamodulooperationsforaprimecheck.Theadvantageofthismethodisthatitoffersaquickcomputationoflargeprimepartitionforencryptionkeyapplication.Inthispaper,itshowsthatallpositiveevenintegersn≥40canbeexpressedasthesumoftwoprimes,thosen<40aretrivialcases.Wecomputedforn=40to400000selectivelywithMatlabprogram.Fromwhich,wecanverifythattheconjectureiscorrect,andwecanuseittoconstructthepseudorandomkeyforencryptionkeyexchanges.

简介：如果，复杂、方形的矩阵E被称为coninvolutory$\barEE=I$，在$\barE$表示建筑群的地方，矩阵E结合并且我是一个身份矩阵。在这份报纸，我们介绍一个复杂矩阵的coninvolutory分解并且为计算coninvolutory因素调查一次牛顿重复。一个简单数字例子说明我们的结果。

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简介：ThispaperintroducesakindofsemanticcomputationandpresentshowtocombineitintoourChineseQuestion-Answering(QA)system.Basedontwokindsoflanguageresources,HownetandCilin,wepresentanapproachtocomputingthesimilarityandrelevancybetweenwords.Usingtheseresults,wecancalculatetherelevancybetweentwosentencesandthengettheoptimalanswerforthequeryinthesystem.ThecalculationadoptsquantitativemethodsandcanbeincorporatedintoQAsystemseasily,avoidingsomedifficultiesinconven-tionalNLP(NaturalLanguageProcessing)problems.Theexperimentsshowthattheresultsaresatisfactory.

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简介：-Thispaperpresentsacalculationmethodforthediffractionofbothregularwavesandirregularwavesofthesingledirectionalfrequencyspectrumbehindasinglejettywithatheoreticalanalysis,whichhasbeenconfirmedthroughthemodelexperiments,derivesamethodofcomputingthediffractedirregularwavesbehindthesinglejettywiththetheoreticalanalysisonthebasisofcomputationofthefielddataandgivestheformulasandthefiguresofthecomputationofwavediffractionsbehindtheverticalwallormoundsinglejetties.

简介：Thecoefficientofdeffractionofregularwavesbehindthedoublejettyhasbeencomputedinthispaperatfirstbyusingthesingularitydistributionmethod.Themodeltestsconductedfordiffractionofirregularwaveswithaunidirectionalfrequencyspectrumhaveconfirmedgoodagreementbetweenthedatameasuredinexperimentsandtheresultscomputedbythesingularitydistributionmethodplusthelinearsuperpositionmethodfortheenergyofcomponentwavesinthedirectionalfrequencyspectra.Therefore,thistechniqueforcomponentwavesinthedirectionalspectrahasbeenfurtherusedtocomputediffractionofirregularwavesofmultidirection,includingtheemploymentofadirectionaldistributionfunctionofthecos2type,aswellastheBretschneider-Misuyannfrequencyspectrum.

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简介：ComputingtheeigenvalueofsmallestmodulusanditscorrespondingeigneveclorofanirreduciblenonsingularM-matrixAisconsidered,ItisshownthatiftheentriesofAareknownwithhighrelativeaccuracy,itseigenvalueofsmallestmodulusandeachcomponentofthecorrespondingeigenvectorwillbedeterminedtomuchhigheraccuracythanthestandardperturbationtheorysuggests.Analgorithmispresentedtocomputethemwithasmallcomponentwisebackwarderror,whichisconsistentwiththeperturbationresults.