简介:Wepresentanapproachforgeneratingasortoffractalgraphsbyasimpleprobabilisticlogicneuronnetworkandshowthatthegraphscanberepresentedbyasetofcompressedcodings.Analgorithmforquicklyfindingthecodings,i.e.,recognizingthecorrespondinggraphs,isgiven.Thecodingsareshowntobeoptimal.Theresultsabovepossiblygiveustheclueforstudyingimagecompressionandpatternrecognition.
简介:Superpixelsegmentationistheoversegmentationofanimageintoasetofhomogeneousregions.Superpixelhasmanyspecificpropertiesandhasbeencommonlyusedassupportingregionsforprimitivestoreducecomputationsinvariouscomputervisiontasks.Onepropertyofsuperpixelsiscompactness,whichispreferredinsomeapplications.Inthispaper,wegiveanreviewonimagesuperpixelsegmentationalgorithmsproposedinrecentyears.Superpixelsegmentationapproachesareclassifiedbasedonthecompactnessconstraintandtheirmainideaareintroduced.Wealsocomparethesealgorithmsinvisualandevaluatethemwithfivecommonmeasurements.
简介:在这篇论文,为综合的一个有效系统任意的多角形的表面上的动物皮肤模式被开发。完成这项任务,同种细胞的马赛克(厘米)模型启发的一个系统被建议。厘米模型在任意的表面上模仿房间的反应。由控制部门,变化;房间的排斥,房间的调整空间安排被形成。细胞的这安排显示出呼吁的结果,它是可比较的,那些自然模式从动物皮肤观察了。然而,一个典型厘米模拟过程招致高计算的费用,在在越过多角形的表面的房间之中的距离被测量的地方;房间的运动在表面上被抑制。在这个框架,一条途径被建议转变每进它的正规参考面的表面的几何飞机组织的原来的3D。这结构帮助简化3D计算问题进一个更可管理的2D问题。而且,局部松弛的概念被开发最佳地为典型厘米模拟提高松弛过程。建议解答方法的表演与广泛的试验性的结果被验证了。
简介:CoordinatesofthekeyfacialfeaturepointscanbecapturedbymotioncapturesystemOPTOTRAKwithreal-timecharacterandhighaccuracy.Thefacialmodelisconsideredasanundirectedweightedgraph.Byiterativelysubdividingtherelatedtriangleedges,thegeodesicdistancebetweenpointsonthemodelsurfaceisfinallyobtained.TheRBF(RadialBasisFunctions)interpolationtechniquebasedongeodesicdistanceisappliedtogeneratedeformationofthefacialmeshmodel.Experimentalresultsdemonstratethatthegeodesicdistancecanexplorethecomplextopologyofhumanfacemodelsperfectlyandthemethodcangeneraterealisticfacialexpressions.
简介:Thispaperpresentsanapproachwhichenablessurfacemodelling,meshgenerationandtheFiniteElement(FE)analysistobeintegratedtogethertosimulatesuperplasticformingprocessforcomplexshapedcomponents.TechniqueshavebeendevelopedtogenerateanFEmeshovernon-four-sidedsurfaceareas,theboundariesofwhichareBeziercurvesofarbitrarydegree,usingaconsistentexpression.TheoreticalevidenceisgiventodeterminethenumberofBeziertriangularpatchesrequiredforaccuratelyre-constructingdiesurfaceswithinacommercialFEsolver.Thedevelopedtechniqueshavebeensuccessfullyusedindeterminingtheprocessparametersforforminga3Drectangularbox.
简介:AnovelconstructionalgorithmispresentedtogenerateaconformingVoronoimeshforanyplanarstraightlinegraph(PSLG).Itisalsoextendedtotesselatemultiple-intersectedPSLGs.Allthealgorithmsareguaranteedtoconverge.Examplesaregiventoillustrateitsefficiency.
简介:AssumingthataVoronoidiagramofsliceareaisobtained,topologicalstructuresofallVoronoiedgesandVoronoipolygonsareusedtoacceleratetheoffsettingprocess.OncewalklineintersectswithoneofVoronoiedgesofthestartingVoronoiobject,thenextstartingVoronoiobjectisacquiredthroughthetopologyrelationship.Experimentalresultsshowtheapproachiseffectiveandsimple.
简介:Itisknownthatcriticalpathtestgenerationmethodisnotacompletealgorithmforcombinationalcircuitswithreconvergent-fanout.Inordertomadeitacompletealgorithm,weputforwardareconvergent-fanoutorientedtechnique,theprincipalcriticalpathalgorithm,propagatingthecriticalvaluebacktoprimaryinputsalongasinglepath,theprincipalcriticalpath,andallowingmultiplepathsensitizationifneeded.Relationshipamongtestpatternsisalsodiscussedtoacceleratetestgeneration.
简介:Inthispaper,firstly,amathematicalmodelforaspecifickindofweltedbifurcationisestablished,theparametricequationfortheintersectingcurveisresultedin.Secondly,amethodforpartitioningfiniteelementmeshesoftheweltedbifurcationisputforward,itsmainideaisthatdevelopingthemainpipesurfaceandthebranchpipesurfacerespectively,dividingmeshesoneachdevelopingplaneandobtainingmeshespoints,thentransformingtheirplanecoordinatesintospacecoordinates.Finally,anappliedprogramforfiniteelementmeshesauto-generationissimplyintroduced,whichadoptObjectARXtechniqueanditsrunningresultcanbeshowninAutoCAD.ThemeshesgeneratedinAutoCADcanbeexportedconvenientlytomostoffiniteelementanalysissoftwares,andthefiniteelementcomputingresultcansatisfytheengineeringprecisionrequirement.
简介:Anintegratedtetrahedrizationalgorithmin3DdomainwhichcombinestheDelaunaytetrahedralmethodwithun-Delaunaytetrahedralmethodisdescribed.ThealgorithmwasdevelopedbyconstructingDelaunayTetrahedronsfromascatteredpointset,recoveringboundariesusingDelaunayandun-Delaunaymethod,insertingadditionalnodesinunsuitabletetrahedrons,optimizingtetrahedronsandsmoothingthetetrahedralmeshwiththe2D-3DLaplacianmethod.ThealgorithmhasbeenappliedtotheinjectionmoldingCAEpreprocessing.
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简介:Identifyingeachprocessandtheirconstraintrelationsfromthecomplexwiringharnessdrawingsquicklyandaccuratelyisthebasisforformulatingprocessroutes.Accordingtotheknowledgeofautomotivewiringharnessandthecharacteristicsofwiringharnesscomponents,weestablishedthemodelofwiringharnessgraph.Thenweresearchthealgorithmofidentifyingtechnologyprocessesautomatically,finallywedescribetherelationshipsbetweenprocessesbyintroducingtheconstraintmatrix,whichisinordertolayagoodfoundationforharnessprocessplanningandproductionscheduling.
简介:ManageabilityisanimportantfeatureofnextgenerationInternet;managementandmonitoringofIPv6-basednetworksareprovingabigchallenge.WhileleveragingcurrentIPv4-basedSNMPmanagementschemetoIPv6networks'managementneedisnecessary,itismoreurgenttocoinanewnetworkmanagementarchitecturetoaccommodatethescalabilityandextensibilityrequirementsofnextgenerationInternetmanagement.Thepaperproposesanovelnetworkmanagementarchitecture,IMN(InternetManagementNetwork),whichcreatesanoverlaynetworkofmanagementnodes.Whileeachmanagementnodecanperformmanagementtasksautonomouslyandindependently,itcanfinishmoresophisticatedmanagementtasksbycollaborativelyinvokingmanagementoperationsorsharinginformationprovidedbyothermanagementnodes.P2P-basedcommunicationservicesareintroducedinIMNtoenablesuchcollaboration.ThepaperpresentsaprototypingimplementationbasedontheWebservicerelatedtechnology,aswellassomeofthekeytechnologies,especiallysolutionstothoseissuesarisingfromthemanagementpracticeofCERNET2.ExperiencesofdeploymentofCERNET2operationandlessonslearnedfromthemanagementpracticearediscussed.
简介:Systemadministratordealswithmanyproblems,ascomputingenvironmentbecomesincreasinglycomplex.Systemswithanabilitytorecognizesystemstatesandadapttoresolvetheseproblemsofferasolution.Muchexperienceandknowledgearerequiredtobuildaself-adaptivesystem.Self-adaptivesystemshaveinherentdifficulties.Thispaperproposesatechniquethatautomaticallygeneratesthecodefortheself-adaptivesystem.Thusthesystemiseasiertobuild.Self-adaptivesystemsofpreviousresearchrequiredhighsystemresourceusage.Incorrectoperationcouldbeinvokedbyexternalfactorssuchasviruses.Weproposeanimprovedself-adaptivesystemapproachandapplyittovideoconferencesystemandrobotsystem.Wecomparedthelinesofcode,thenumberofclassescreatedbythedevelopers.Wehaveconfirmedthisenhancedapproachtobeeffectiveinreducingthesedevelopmentmetrics.
简介:Coalitional技巧比赛(CSG)是在每个代理人有被要求完成许多任务的一套技巧的不明确的环境的合作的一个简单模型,每项任务要求一套技巧被完成,但是每技巧是很难的被确定并且能仅仅是表示的品质上。因此远,包围CSG的许多计算问题被学习了。就我们的知识而言,作为CSG的一个中央问题,然而,联盟结构产生问题(CSGP)是极其挑战性的并且很好没被解决。到这个目的,二个不同计算智力算法此处被评估:二进制粒子群优化(BPSO)和二进制微分进化(BDE)。特别地,我们与二维的二进制代码编码开发二个随机的搜索算法并且相应为单个修理启发式。在那以后,我们讨论一些基本性质求婚启发式。最后,我们为在CSG解决CSGP把改进BPSO和BDE与最先进的算法作比较。试验性的结果证明我们的算法能与存在途径在最佳的答案附近发现一样,但是花极其短的时间,特别在大问题尺寸下面。