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30 个结果
  • 简介:ispaperestablishesaformalmodelforhybriddiagnosis,novelfeaturesincluding:(1)Itprovidesaunifiedtheoreticalframeworkforutilizingdevicemodelsandheuristicsindiagnosis,whichnaturallyintegratesalltheimportantcomponentsofdiagnosis-thestructuralandbehavioraldescriptionofdevices,faultmodes,thelowerandupperfaultbounds,faultpossibilitiesandheuristicrules-intoadiagnosticsystem.Devicemodelspredictoutputsfrominputs,heuristicrulesinferthepossibilitiesofcertaincomponentsbeingfaultyfromsymptons,andyetthecombinationofbothconstrainseachotherforustoreducethehypothesisspace.(2)Itpresentsatypicalwayofmodelingbehaviorofdevices,towhichthekeyistheintroductionofI-Ofunctionswithindefiniteinputs/outputs.(3)Itcaneasilybeimplementedoveraforware-chaininginferenceengine.

  • 标签: 程序设计 容错 混合诊断理论
  • 简介:Demonstratingtheapproachtoprotractthefigureofthree-dimensionalgraphswithgeometricalformsintwo-dimensionalplanes,graphicsisabasictechnicaldisciplineofexaminingprotractingengineeringdrawingsusingthemethodofprojectionandaddressingissuesonspacegeometryaswellasitstheoryandapproach.Graphicsisalsoakindofsemioticsystemofwriting.ChinaboastsofrichtraditionofgraphicswithamazingarchitecturaldrawingsinPre-Qinperiod,boomingtheoriesofgraphicsinWeiandJinDynasties,refinedprotracteddrawingsinSongandYuanDynasties,andgraphicsbeingregardedasimportantinstrumentsinMingandQingDynastieswhenthoroughapprehensionwerepursuedinordertoseekthepracticeofadministration.ItnotonlyformsthebasisformodernandcontemporarygraphicsinChina,butalsoshapesthefuturedevelopmentofgraphics.

  • 标签: 图形绘制 当代中国 投影理论 古代 明清时期 几何形状
  • 简介:Spacesyntaxhasproventhereappearstobeafundamentalprocessthatinformshumanandsocialusageofanenvironment,andtheeffectsofspatialconfigurationonmovementpatternsareconsistentwithamodelofindividualdecisionbehavior.Introducingspacesyntaxtocrowdsimulationwillenablespacestructureguidetherandommovementofthecrowdwithnospecifictargets.Thispaperproposesasimulationmethodofthewanderingcrowd,whichcalculatesthecrowddistributioncorrespondingtothespacethroughspacesyntaxandusesahybridpathplanningalgorithmtodynamicallynavigatethecrowdtoconformtothedistribution.Experimentsshowthepresentedmethodcanobtainreasonableandvision-realisticsimulationresults.

  • 标签: 空间配置 群仿真 法理 路径规划算法 空间句法 模拟方法
  • 简介:AbriefhistoricalintroductionofresearchesonperspectiveinancientChinaispresented,thispaperstudiedanddiscussedtheperspectivetheoryorZongBing(宗炳)inthe5^thcenturyofChina,includingZongBingandthisAnintroductiontoLandscapePainting,anditsmathematicalbasis,drawingideasofZongBingaswell.

  • 标签: 中国 透视理论 宗炳 风景画法 工程制图
  • 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.

  • 标签: PERSONALIZED PRIVACY protection GAME theory trade-off
  • 简介:为基于与转换相结合的单个不安理论,设计为非仿射的非线性的系统的一个类被考虑的输出规定的一个控制合成方法。产生控制信号被定义为转换的“快”的动力学的一个答案一个系列错误模型,其状态指数地稳定。在与单个不安理论的假设一致的足够的条件下面,这个问题是可解决的与,这被显示出(ɛ)如果并且仅当一套一阶的非线性的部分微分方程是可解决的,追踪错误。控制法律能容易被构造,模拟显示出控制器的可行性和有效性。

  • 标签: 奇异摄动理论 非线性系统 输出调节 非线性偏微分方程 控制信号 合成方法
  • 简介:在这篇论文,二维的弄歪的分离Fourier变换(2-DWDFT)基于1-DWDFT的概念被开发。一个准确计算算法与特殊结构基于矩阵factorizing为2-DWDFT被开发。一个快算法然后被建议极大地减少反的2-DWDFT的计算复杂性。最后,数字例子被给显示出建议途径的效率。

  • 标签: 离散傅立叶变换 非一致二维傅立叶变换 计算算法 矩阵