简介：Verticaltotalelectroncontent(VTEC)timeserieswereobtainedfrom22GPSstationsneartheepicenteroftheLushanearthquake.Inthispaper,wehaveadoptedaslidingaveragemethodtodetectandanalyzeanomalousVTECassociatedwiththeearthquake.Theresultsshowthatsignificant,negativeionosphereVTECanomaliesappearedoverthe5daysbeforetheearthquake,andonthedaywhenearthquakeoccurred.ThemaximumvalueofVTECanomaliesthatexceededthelowerboundreached20TECU.ThespatialdistributionofVTECanomaliesshowedaconjugatestructure,whichshiftedtothemagneticequator,andsubsequentlymovedwestwards.

简介：Therearemainlyfourkindsofmodelstorecordanddealwithhistoricalinformation.Bytakingthemasreference,thespatio-temporalmodelbasedoneventsemanticsisproposed.Inthismodel,accordingtothewayfordescribinganevent,alltheinformationaredividedintofivedomains.Thispaperdescribesthemodelbyusingthelandparcelchangeinthecadastralinformationsystem,andexpoundsthemodelbyusingfivetablescorrespondingtothefivedomains.Withtheaidofthismodel,sevenexamplesaregivenonhistoricalquery,tracebackandrecurrence.Thismodelcanbeimplementedeitherintheextendedrelationaldatabaseorintheobject-orienteddatabase.

简介：在这篇文章，有关表面和界面的紧张的试验性的大小跟随简短介绍，为为二进制代码计算表面紧张和表面分离的方法，第三，并且多部件高温度基于蝇绳融化“soriginal处理并且在可得到的物理性质和热力学的数据上，特别体积阶段和表面阶段对温度的免费精力从热力学的数据库获得了使用相图(CALPHAD)的计算的excessGibbs来临，与到模型参数β的特殊注意，被描述了。另外，几何模型能被扩大预言表面紧张多亚二进制代码系统的从那些的部件系统。在nanoparticle系统的二元合金的Forillustration，一些计算例子，包括的Pb免费的焊接系统和phase-diagramevaluation被给。根据紧张ofhigh温度融化的表面，在象moltens一样的液体合金和熔融的炉渣之间的界面的紧张落后，熔融的物质能用Girifalco好的方程是计算的。修正在Nishizawa被建议“为在液体金属(A)/ceramics(MX)的界面的紧张的评价的s模型系统以便计算能基于潜水艇晶格模型和热力学的数据被执行，没有故意在高温度区分MX的阶段。最后，为预言在thehigh温度多部件之间的界面的紧张的一个近似表达式的推导融化，雇用贝克尔“与蝇绳一起的s模型”sequation和简单系统的界面的紧张数据被描述，并且有关焦性没食子酸的一些例子冶金系统为更好理解被给。

简介：这份报纸在稻田在Fuzhou区域印射上介绍ENVISATASAR数据申请，用在2005获得的多时间的ASAR双极化数据。为这里处理的ASAR数据的过程为反散射从振幅包括数据刻度，图象登记，点缀减小和数据格式的变换到dB。米饭的反散射与种阶段的米饭增加，它与另外的陆地封面不同。基于图象差别技术，6个计划与ASAR被设计不同时间并且为稻田印射的极化数据。在在米饭庄稼的早时期和成长或成熟的时期的图象之间的差别图象，比在在一样的日期的不同极化之间的那些差别图象对米饭抽取更合适。最精确的结果近来，米饭抽取基于在10月和8月获得的HH极化数据的差别被完成。因此为稻田印射，时间的信息比极化信息更重要。数据为印射的高精确性米饭在米饭的早成长的季节期间是很重要的。

简介：WiththedeliveryofagreatdealremotesensingdatatolandfromLandsatconstantly,RemoteSensingSatelliteGroundStationaccumulatesabundantsatelliteremotesensingdata.Forlackofeffectivedatamining(DM)andknowledgeDiscoveryfromDatabases(KDDtechnique)tothesedata,mostpartoftheinformationcannotbeusedefficiently.TechnicalinnovationandimprovementofthetraditionalDMandKDD,studyofthedataminingandKDDwillbothincreasetheinterpretationlevelandintelligentized,andmoreoverexploreandutilizetheremotesensinginformationatthemaximumdegree.BasedonthetraditionaldataminingandKDD,theauthorsprobedthetechnicalflowofDMandKDDoftheremotesensing,designedthesystematicalframeworkofmulti-sourcesremotesensingDM,putforwardaprototypeEstablishedabaseforfurtherexploringandsystem.ofmulti-sourcesremotesensingDMsystem.developingmulti-sourcesremotesensingDMsystem.

简介：Arecursiveidentificationmethodisproposedtoobtaincontinuous-timestate-spacemodelsinsystemswithnonuniformlysampled(NUS)data.Duetothenonuniformsamplingfeature,thetimeintervalfromonerecursionsteptothenextvariesandtheparameterisalwaysupdatedpartiallyateachstep.Furthermore,thisidentificationmethodisappliedtoformacombineddatacompressionmethodinNUSprocesses.Thedatatobecompressedarefirstclassifiedwithrespecttoaseriesofpotentiallyexisting(possiblytime-varying)models,andthenmodeledbytheNUSidentificationmethod.Themodelparametersarestoredinsteadoftheidentificationoutputdata,whichmakesthefirstcompression.Subsequently,asthesecondstep,theconventionalswingingdoortrendingmethodiscarriedoutonthedatafromthefirststep.Numericresultsfromsimulationaswellaspracticaldataaregiven,showingtheeffectivenessoftheproposedidentificationmethodandfoldincreaseofcompressionratioachievedbythecombineddatacompressionmethod.

简介：让fn基于内核函数K和在d维的单位范围Sd拿值的独立、相等分布式的随机的变量的一个序列是方向性的数据的非参量的内核密度评估者?1。如果核功能是有围住的变化的功能，随机的变量的密度功能f是连续的，它被证明那，那么大的偏差原则和中等偏差原则为成立。关键词核密度评估者-方向性的数据-中等偏差-大偏差先生(2000)题目分类60F10-62F12由中国(资助号码10571139)的国家自然科学基础支持了

简介：ＳｔａｔｉｓｔｉｃａｌｔｅｓｔｓｏｆｒｅｃｅｎｔｐｌａｔｅｔｅｃｔｏｎｉｃｕｎｉｔｓｂｙｕｓｉｎｇｇｅｏｄｅｔｉｃｄａｔａＺＨＩＰＩＮＧＬＵ１）（吕志平）ＸＩＡＮＢＩＮＧＷＵ２）（吴显兵）ＣＨＡＯＺＨＡＮＧ１）（张超）１）ＺｈｅｎｇｚｈｏｕＩｎ...

简介：Thispaperaddressestheproblemofselectingarouteforeverypairofcommunicatingnodesinavirtualcircuitdatanetworkinordertominimizetheaveragedelayencounteredbymessages.TheproblemwaspreviouslymodeledasanetworkofM/M/1queues.Ageneticalgorithmtosolvethisproblemispresented.Extensivecomputationalresultsacrossavarietyofnetworksarereported.Theseresultsindicatethatthepresentedsolutionprocedureoutperformstheothermethodsintheliteratureandiseffectiveforawiderangeoftrafficloads.

简介：在这篇论文，我们为用模糊的熵识别相关潜水艇空格建议一个新奇方法并且表现聚类。这项措施由使用会员功能测量班火柴度更好区别真实分发。因此模糊的熵在潜水艇空格在模式的实际分发反映更多的信息。我们基于剪影标准使用一个启发式的过程发现簇的数字。介绍理论和算法通过许多基准数据集合的实验被评估。实验结果与几个另外的聚类的算法比较显示出它的有利表演。

简介：许多微数组研究的目的是发现在象处理类型或样品显型那样的基因表示和样品特征之间的协会。在那里，努力的巨浪为描出一直在开发不同方法协会。除了微数组数据的高维数，一很好公认的挑战是基因能复杂地被互连的事实，因此使许多统计方法不恰当在表达式数据上直接使用。Multivariate方法象主要部件分析(PCA)那样并且聚类经常被用作捕获基因关联的努力的部分，并且导出的部件或簇被用来描述在基因表示和样品显型之间的协会。我们建议一个方法因为用格言联盟者的耐心的人口dichotomization与PCA方法在联合选择了测试统计，它显示出有利结果。建议方法与一个当前认出得好的方法相比。

简介：Utilizingdatafromcontrolledseismicsourcestoimagethesubsurfacestructuresandinvertthephysicalpropertiesofthesubsurfacemediaisamajoreffortinexplorationgeophysics.Denseseismicrecordswithhighsignal-to-noiseratio(SNR)andhighfidelityhelpsinproducinghighqualityimagingresults.Therefore,seismicdatadenoisingandmissingtracesreconstructionaresignificantforseismicdataprocessing.Traditionaldenoisingandinterpolationmethodsrarelyoccasionedrelyonnoiselevelestimations,thusrequiringheavymanualworktodealwithrecordsandtheselectionofoptimalparameters.Weproposeasimultaneousdenoisingandinterpolationmethodbasedondeeplearning.Fornoisyrecordswithmissingtraces,weadoptaniterativealternatingoptimizationstrategyandseparatetheobjectivefunctionofthedatarestoringproblemintotwosub-problems.Theseismicrecordscanbereconstructedbysolvingaleast-squareproblemandapplyingasetofpre-traineddenoisingmodelsalternativelyanditeratively.Wedemonstratethismethodwithsyntheticandfielddata.

简介：为在扫描数据的激光的特征察觉的方法自从技术的出现被学习十年了。然而，它仍然是在在不均匀的取样的点由于质地和结构信息抽取的困难处理的激光雷达数据的未解决的问题之一。纸在激光雷达数据为结构察觉分析Gaussian(日志)过滤器和它的潜在的使用的拉普拉斯算符的特征。基于木头，过滤在未组织的点上被介绍并且试验的一个特征察觉方法。方法过滤举起值(也就是，z坐标价值)由用在它的本地区域以内的日志核的卷绕旋转的每个点并且导出建议地面反对/展示的某些类型的存在的模式。实验被继续从一个邻居区域获得的点云数据集。结果证明在在定义的标准差之间的不同规模和关系检测的模式记载核和邻居尺寸，它指定被分析的本地区域。

简介：Ｓｔｕｄｙ　ｏｎ　ｔｅｃｔｏｎｉｃ　ｓｔｒｅｓｓ　ｏｆ　Ｚｈｏｎｇｙｕａｎ　ｏｉｌ　ｆｉｅｌｄ　ｗｉｔｈ　ｗｅｌｌｂｏｒｅ　ｂｒｅａｋｏｕｔ　ｄａｔａ（黄雨蕊）（许忠淮）（高阿甲）（谭廷栋）ＳｔｕｄｙｏｎｔｅｃｔｏｎｉｃｓｔｒｅｓｓｏｆＺｈｏｎｇｙｕ...

简介：ByusingobservedCHAMPorbitephemeredesandMSISE-90dryairmodelandregardingtheearthasasphereandanellipsoidrespectively,phasedelaysaresimulatedandthesimulateddataareretrievedunderdifferentschemes.Thecomparisonbetweentheinvertedtemperatureprofilesandthemodeltemperatureprofilesshowsthatbyinvertingobserveddata,wewillgettemperatureresultswithlargeerrorsiftheeffectofEarth'soblatenessisomitted.Thecorrectionmethodisprovedtobeeffectivebecausethetemperatureerrorsdecreasedobviouslywiththismethod.

简介：

简介：Theaimofthisresearchistocharacterizethedevelopmentoffatiguedamagebymeansofstress-strainhysteresis.Experimentswereconductedon14specimensmadeofcold-finishedunannealedAISI1018steel.Resultsdemonstratethatthemechanicalhysteresisloopareas,whenplottedasafunctionofthenumberofloadingcycles,showsignificantvariationsanddemonstratethethreeprincipalstagesconcerningtheprogressofthefatiguefailure—initialaccommodation,accretionofdamageandterminalfailure.ThesethreestagesoffatiguearemarkedbythetransitionsatcyclesN2andN3.ExperimentalresultsshowthatalthoughfatiguelifeNfrangesfrom2644cyclesto108992cycles,theratiosofN2/NfandN3/Nftendtobestable:N2/Nf=10.7%,N3/Nf=91.3%.

简介：Duetodramaticallyincreasinginformationpublishedinsocialnetworks,privacyissueshavegivenrisetopublicconcerns.Althoughthepresenceofdifferentialprivacyprovidesprivacyprotectionwiththeoreticalfoundations,thetrade-offbetweenprivacyanddatautilitystilldemandsfurtherimprovement.However,mostexistingstudiesdonotconsiderthequantitativeimpactoftheadversarywhenmeasuringdatautility.Inthispaper,wefirstlyproposeapersonalizeddifferentialprivacymethodbasedonsocialdistance.Then,weanalyzethemaximumdatautilitywhenusersandadversariesareblindtothestrategysetsofeachother.Weformalizeallthepayofffunctionsinthedifferentialprivacysense,whichisfollowedbytheestablishmentofastaticBayesiangame.Thetrade-offiscalculatedbyderivingtheBayesianNashequilibriumwithamodifiedreinforcementlearningalgorithm.Theproposedmethodachievesfastconvergencebyreducingthecardinalityfromnto2.Inaddition,thein-placetrade-offcanmaximizetheuser'sdatautilityiftheactionsetsoftheuserandtheadversaryarepublicwhilethestrategysetsareunrevealed.Ourextensiveexperimentsonthereal-worlddatasetprovetheproposedmodeliseffectiveandfeasible.

简介：在实际调查采样，nonresponse现象是不可避免的。怎么把归咎于错过数据是一个重要问题。在文学有几个归罪方法。在这份报纸，当PPSWR采样被使用时，为在一致反应下面的失踪的数据的比率的平均数的归罪方法被用于一个有限人口平均数的评价。把归咎于的评估者不管反应机制不管模型以及在比率模型下面在相应反应机制下面是有效的。近似不偏的大折刀变化评估者也被介绍。所有这些结果被扩大到不一致的反应的盒子。模拟研究显示出建议评估者的好表演。关键词归罪-条款nonresponse-大折刀变化评估者-不一致的反应-PPSWR采样先生(2000)题目分类62D05由中国的国家自然科学基础支持了(资助Nos.70625004，10721101和70933003)

简介：Onthebasisoftheprinciplesofsimplerandomsampling,thestatisticalmodelofrateofdisfigurement(RD)isputforwardanddescribedindetail.AccordingtothedefinitionofsimplerandomsamplingfortheattributedatainGIS,themeanandvarianceoftheRDarededucedasthecharacteristicvalueofthestatisticalmodelinordertoexplainthefeasibilityoftheaccuracymeasurementoftheattributedatainGISbyusingtheRD.Moreover,onthebasisofthemeanandvarianceoftheRD,thequalityassessmentmethodforattributedataofvectormapsduringthedatacollectingisdiscussed.TheRDspreadgraphisalsodrawntoseewhetherthequalityoftheattributedataisundercontrol.TheRDmodelcansyntheticallyjudgethequalityofattributedata,whichisdifferentfromothermeasurementcoefficientsthatonlydiscussaccuracyofclassification.