学科分类
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500 个结果
  • 简介:一个新歧管的学习方法,叫的增长排列方法(IAM),与内在的低维数为高维的数据的非线性的维数减小被建议。主要想法是逐渐地排列输入数据patch-by-patch的低维的坐标反复地产生全部数据集的表示。方法由二主要的步,增长的步和排列步组成。增长的步逐渐地寻找邻居补丁在下一步被排列,并且排列步反复地排列寻找产生全部数据集的embeddings的邻居补丁的低维的坐标。与存在相比歧管的学习方法,建议方法在几统治方面:高效率,容易的out-of-sample扩展,很好公制保存,并且本地最小问题避免。所有这些性质被在合成、真实的数据集上执行的一系列实验支持。另外,建议方法的计算复杂性被分析,并且它的效率理论上被说服并且试验性地示威了。

  • 标签: 流形学习 增量 对准 学习方法 计算复杂性 降维方法
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  • 简介:Thepurposeofthisstudywastounderstandtheeffectofimplementingmultipleintelligence(MI)-basedinstructiononthesciencelearningmotivationandlearningachievementof7thgradejuniorhighstudents.Thisquasi-experimentalresearchstudyutilizedquestionnairesandtestsofsciencelearningmotivationandlearningachievement,andexaminedcollecteddatathroughuseofthestatisticalpackageforthesocialsciences(SPSS).Ananalysisofcovariance(ANCOVA)andat-testwereperformedinordertoexplorethedifferencesbetweenthesciencelearningmotivationsandlearningachievementsoftheexperimentalgroup(N=39),whoweresubjectedtoteachingbasedonMItheory,andthecontrolgroup(N=36),whoweresubjectedtotraditionallectures.Theresultsofthestudyshowthat,afterimplementingMI-basedinstruction,thestudentsintheexperimentalgroupsignificantlyoutperformedthoseinthecontrolgroupintermsofsciencelearningmotivation,sciencelearningvalue,andactivelearningstrategies,whilethestudentswithlowlearningachievementshowinganimprovementintheirlearningattitudethatallowedthemtodevelopapositivelearningattitudetowardbiologyclassesandraisedtheirclassparticipationandpreferenceforbiologyclasses.

  • 标签: MULTIPLE intelligences(MI) LEARNING MOTIVATION LEARNING ACHIEVEMENT
  • 简介:Thearticleexaminestheworldexperienceofe-learningaswellasdistanceeducationtechnologieswithintheeducationprocessorganizationonhigherandpost-highereducationprograms.Therehavebeenlistedtheresultsofthemostpopulare-leamingplatformsanalysis.Furthermore,therehavebeenlookedthroughthecorelegislativebackgroundofthedevelopmentofthementionedtechnologiesinRussiaandworldwideamongtheuniversities,specializedinseafarerstraining.TherehavebeenalsodrawnupthepointsoftheAdmiralMakarovStateUniversityofMaritimeandInlandShipping(AdmiralMakarovSUMIS)designofthedistanceeducationsystemLMS“FARWATER”incompliancewiththeInternationalConventiononStandardsofTraining,CertificationandWatchkeepingforSeafarers(STCWConvention).Thepracticalapplicationofdistanceeducationsystemtotheadvancedprofessionaltraininghasbeendiscussedinthearticle.

  • 标签: e-leaming distancelearningtechnologies METInstitutions advancededucationplatforms distanceeducation system SEAFARERS training International CONVENTION
  • 简介:IntroductionTheproliferationofapproachesandmethodsisaprominentcharacteristicofcontemporaryESLorEFLteaching.FromtheGrammarTranslationMethod,theDirectMethod,SituationalLanguageTeaching,theAudiolingualMethodtoCommunicativeLanguageTeaching,TotalPhysicalResponse,theSilentWay,CommunityLanguageLearning,theNaturalApproachandSuggestopedia,thediscussionhaslastedformorethanacentury.However,thewidevarietyofmethodorapproachoptionsconfusesratherthancomforts,becausetheyseemtoholdverydifferentviewsofwhatlanguageisandhowalanguageislearned(Richards&Rodgers,1991).Thisconfusingsituationismainlycausedbythemythofthehu-

  • 标签: 刀工
  • 简介:Inthispaper,weproposetwoweightedlearningmethodsfortheconstructionofsinglehiddenlayerfeedforwardneuralnetworks.Bothmethodsincorporateweightedleastsquares.Ourideaistoallowthetraininginstancesnearertothequerytoofferbiggercontributionstotheestimatedoutput.Byminimizingtheweightedmeansquareerrorfunction,optimalnetworkscanbeobtained.Theresultsofanumberofexperimentsdemonstratetheeffectivenessofourproposedmethods.

  • 标签: 单隐层前馈神经网络 加权最小二乘 学习方法 误差函数 最小化 查询
  • 简介:语言学习是一个长期的过程,也是一个艰苦的过程,更是一个快乐的、收获的过程。本文给大家提供了十条建议,几乎涵盖了语言学习的各个方面,相信会给我们很大的启发。

  • 标签: 大学 英语教学 教学方法 语言学习
  • 简介:ThisessaymainlydealswiththeeffectualwaystomotivatestudentsintheirEnglishlearning,themotivationandteachers'roleinmotivatingstudents.Theauthordoeshope,throughthiskindofstudying,moreandmoreEnglishteacherscometorealizetheimportanceofmotivationanddosomeresearchtoimprovestudents'Englishlevel.

  • 标签: 英语教学 诱导式教学 学习动机 内在机制 外在机制
  • 简介:ThetraditionalGaussianMixtureModel(GMM)forpatternrecognitionisanunsupervisedlearningmethod.Theparametersinthemodelarederivedonlybythetrainingsamplesinoneclasswithouttakingintoaccounttheeffectofsampledistributionsofotherclasses,hence,itsrecognitionaccuracyisnotidealsometimes.ThispaperintroducesanapproachforestimatingtheparametersinGMMinasupervisingway.TheSupervisedLearningGaussianMixtureModel(SLGMM)improvestherecognitionaccuracyoftheGMM.Anexperimentalexamplehasshownitseffectiveness.TheexperimentalresultshaveshownthattherecognitionaccuracyderivedbytheapproachishigherthanthoseobtainedbytheVectorQuantization(VQ)approach,theRadialBasisFunction(RBF)networkmodel,theLearningVectorQuantization(LVQ)approachandtheGMM.Inaddition,thetrainingtimeoftheapproachislessthanthatofMultilayerPerceptrom(MLP).

  • 标签: 模式识别 高斯混合模型 机器学习