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27 个结果
  • 简介:Atacomputersoftwarecourse,theparticipantsweregivenanawkwardquestiontoanswer:“Ifyouhadjustboardedanairlineranddiscoveredthatyourteamofprogrammershadbeenresponsiblefortheflightcontrolsoftware,howmanyofyouwoulddisembarkimmediately?”

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  • 简介:Rareearthmarketsawanewroundofriseinthetraditionalstockpilepeakseasonandundertheexpectationofstatestorage.Recently,pricesofoverallrareearthproductscontinuedrisingandkeptstrong.JournalistofChinaChemicalIndustryNewsreportedonMarch20thatrareearthpricewouldenteralongperiodofupwardtendencystimulatedbythepoliciesofexporttariffcancellation,governmentstorage,resourcetaxreformandreorganizationspeed-up.Thisroundofrallywasthoughttolastforalongertimeand

  • 标签: 稀土市场 产品价格 信心 资源税 时间
  • 简介:Toacceleratethetrainingofsupportvectordomaindescription(SVDD),confidencesupportvectordomaindescription(CSVDD)isproposedbasedontheobservationthatthedescriptionboundaryisdeterminedbyasmallsubsetoftrainingdatacalledsupportvectors.Namely,thenumberoftrainingsamplesintheuserdefinedsphereiscalculatedandtakenastheconfidencemeasure,accordingtowhichthetrainingsamplesarerankedinascendingorder.ThoseformerrankedonesareselectedastheboundarytargetsfortheSVDDtraining.SimulationsonUCIdatademonstratetheeffectivenessandsuperiorityofCSVDD:thenumberoftrainingtargetsandthetrainingtimearereducedwithoutanylossofaccuracy.

  • 标签: 无线电导引系统 CSVDD SVDD 系统工程
  • 简介:GPS运动学的搬运人阶段大小能被用来决定七个尺寸状态和一个动的搬运人的三个态度参数,例如一架飞机或一只lowearth轨道太空船,一条天线在上被安装收到GPS信号。自从1994,在动的环境的GPS搬运人阶段大小为点高度为二个维的位置和卤18.1cm获得了卤7.9cm的外部精确性,这在中国从摄影测量学的在空中的GPS测试结果被知道。这份报纸与multireference车站描述在空中的GPS搬运人阶段大小并且讨论怎么评估GPS运动学的数据的信心。

  • 标签: 在空中的 GPS 接收装置 GPS 运动学的搬运人阶段测量 multireferene 地面车站
  • 简介:FOREIGNcapitalmarketsappealstronglytoChi-neseenterprisesfortheirscale,highefficiencyandgoodservices.Chineseenterprisesnowseeklistingsonforeignstockexchangesasthebestwaytodobusinessabroad,theUnitedStatesthemostfavoreddestination.

  • 标签: 中国经济 经济增长 国民收入 经济建设 改革开放
  • 简介:Thispaperstudiesastochasticallyforcedchemostatmodelwithfeedbackcontrolinwhichtwoorganismscompeteforasinglegrowth-limitingsubstrate.Inthedeterministiccounterpart,previousresearchesshowthatthecoexistenceoftwocompetingorganismsmaybeachievedasastablepositiveequilibriumorastablepositiveperiodicsolutionbydierentfeedbackschedules.Inthestochasticcase,basedonthestochasticsensitivityfunctiontechnique,weconstructtheconfidencedomainsfordierentfeedbackscheduleswhichallowustofindtheconfigurationalarrangementsofthestochasticattractorsandanalyzethedispersionoftherandomstatesofthestochasticmodel.

  • 标签: STOCHASTIC CHEMOSTAT model feedback control white
  • 简介:Confidence-buildingmeasuresarethosetakenbetweencountriestoenhancemutualunderstanding,reducedistrust,easetensionsandpreventtheoutbreakofwar.Theyrefertostipulationsagreeduponbetweencountriesonexchangesandcheckingofinformation

  • 标签: 中国 安全环境 经济发展 外交关系
  • 简介:1.IntroductionThemethodoflikelihoodintroducedbyFisheriscertainlyoneofthemostcommonlyusedtechniquesforparametricmodels.Recentlythelikelihoodhasalsobeenshowntobeveryusefulinnonparametriccontexts.O...II--31hasintroducedempiricallikelihoodratiostatistics...

  • 标签: Empirical LIKELIHOOD SEMI-EMPIRICAL LIKELIHOOD hypotheses tests
  • 简介:ThispaperconstructsasetofconfidenceregionsofparametersintermsofstatisticalcurvaturesforAR(q)nonlinearregressionmodels.Thegeometricframeworksareproposedforthemodel.Thenseveralconfidenceregionsforparametersandparametersubsetsintermsofstatisticalcurvaturesaregivenbasedonthelikelihoodratiostatisticsandscorestatistics.Severalpreviousresults,,suchas[1]and[2]areextendedtoAR(q)nonlinearregressionmodels.

  • 标签: 非线性衰退模型 置信域 统计曲率 参数估计