简介：AcollaborativevirtualmodelingenvironmentbasedonVRMLispresentedasasugarcaneharvestermodelingframework,andisillustratedwiththeimplementedsoftwarethatcanusingI_DEAS,Smarteam,andConceptualInnovationDesignSystem(CIDS)asthesupportingplatform,whichispowerfulenoughtomeetthedemandsofdifferentreallifeapplications.Itispossibletoperformcollaborativeinteractivemodificationswithconcurrentsynchronousvisualizationateachclientcomputerwithanyrequiredlevelofdetail.Theplatformprovidesaproductmodelingandassemblingenvironment,andtheproductdataamongI_DEAS,SmarteamandCIDScanbeexchanged.

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简介：Collaborativeenvironmentssupportingpointtopointandmultipointvideoconferencing,documentandapplicationsharingacrossbothlocalandwideareanetworks,videoondemand(Broadcastandplayback)andinteractivetextfacilitieswillbeacrucialelementforthedevelopmentofthenextgenerationofHEPexperimentsbygeographicallydispersedcollaborations.The"VirtualRoomVideoconferencingSystem"(VRVS)hasbeendevelopedsince1995,inordertoprovidealowcost,bandwidth-efficient,extensiblemeansforvideoconferencingandremotecollaborationovernetworkswithinthehighEnergyandNuclearPhysicscommunities.TheVRVS(VirtualRoomsVideoconferencingSystem)providesworldwidevideoconferencingserviceandcollaborativeenvironmenttotheresearchandeducationcommunities,VRVSusestheInternet2andESnethigh-performancenetworksinfrastructuretodeployitsWeb-basedsystem,whichnowincludesmorethan5790registeredhostsrunningVRVSsoftwareinmorethan50differentcountries,VRVShostsanaverageof100-multipointvideconferenceandcollaborativesessionsworldwideeverymonth.Therearearound35reflectorsthatmanagethetrafficflow.atHENPlabsanduniversitiesintheUSandEurope,Sofar,thereare7VirtualRoomsforWorldWideConferences(involvingmorethanonecontient),and4VirtualRoomseachforintra-continentalconferencesintheUS,EuropeandAsia,VRVScontinuestoexpandandimplementnewdigitalvideotechnologies,includingH.323ITUstandardintegration,MPEG-2videoconferencingintegration,sharedenvironments,andQualityofService.

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简介：Concerningthedemandsinnetworkedcollaborativeinnovativedesign,aknowledge-basedcollaborativedesignmodelisintroducedthemodelofknowledgeintegrationalongwithitsrelevantsupportingtechniquesarepresented.Afterillustratingthegeneralknowledgesearchparadigm,akindofdynamicusermodelisproposedtoimproveknowledgesearchefficiency.Atlastashortintroductionofthesystem'simplementationisdescribed.

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简介：Theshipdesignprocessmodelisthebasisfordevelopingtheshipcollaborativedesignsystemundernetworkenvironment.Accordingtothecharacteristicsoftheshipdesign,amethodfordividingtheshipdesignprocessintothreelayersispatforward,thatisprojectlayer,designtasklayeranddesignactivitylayer,thentheformalizeddefinitionsoftheshipdesignprocessmodel,thedecomposingprinciplesoftheshipdesignprocessandthearchitectureoftheshipcollaborativedesign(SDPM)systemarepresented.Thismethodsimplifiestheactivitynetwork,makestheoptimizationandadjustmentofthedesignplanconvenientandalsomakesthedesignprocesseasiertocontrolandchange,atlastthearchitectureoftheshipcollaborativedesignsystemisdiscussed.

简介：Engineeringandresearchteamsoftendevelopnewproductsandtechnologiesbyreferringtoinventionsdescribedinpatentdatabases.EfficientpatentanalysisbuildsR&Dknowledge,reducesnewproductdevelopmenttime,increasesmarketsuccess,andreducespotentialpatentinfringement.Thus,itisbeneficialtoautomaticallyandsystematicallyextractinformationfrompatentdocumentsinordertoimproveknowledgesharingandcollaborationamongR&Dteammembers.Inthisresearch,patentsaresummarizedusingacombinedontologybasedandTF-IDFconceptclusteringapproach.Theontologycapturesthegeneralknowledgeandcoremeaningofpatentsinagivendomain.Then,theproposedmethodologyextracts,clusters,andintegratesthecontentofapatenttoderiveasummaryandaclustertreediagramofkeyterms.PatentsfromtheInternationalPatentClassification(IPC)codesB25C,B25D,B25F(categoriesforpowerhandtools)andB24B,C09GandH011(categoriesforchemicalmechanicalpolishing)areusedascasestudiestoevaluatethecompressionratio,retentionratio,andclassificationaccuracyofthesummarizationresults.Theevaluationusesstatisticstorepresentthesummarygenerationanditscompressionratio,theontologybasedkeywordextractionretentionratio,andthesummaryclassificationaccuracy.Theresultsshowthattheontologybasedapproachyieldsaboutthesamecompressionratioaspreviousnon-ontologybasedresearchbutyieldsonaveragean11%improvementfortheretentionratioanda14%improvementforclassificationaccuracy.

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简介：Inordertoassurequalityandcontrolprocessinthedevelopmentoftheaircraftcollaborativedesignsoftware,amaturityassessmentmodelisproposed.Therequirementsdesigning—houseofqualityisdesignedtoevaluatethematuritydegreeofthesolution,andtheevaluationresultscanhelptomanageandcontrolthedevelopmentprocess.Furthermore,afuzzyevaluationmethodbasedontheminimumdeviationisproposedtodealwiththefuzzyinformation.Thequantitativeevaluationresultofthematuritydegreecanbecalculatedbyoptimizingthesemanticdiscountfactoraimfortheminimumdeviation.Finally,thismodelisillustratedandanalyzedbyanexamplestudyoftheaircraftcollaborativedesignsoftware.

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简介：Targettrackingisoneofthemainapplicationsofwirelesssensornetworks.Optimizedcomputationandenergydissipationarecriticalrequirementstosavethelimitedresourceofthesensornodes.Aframeworkandanalysisforcollaborativetrackingviaparticlefilterarepresentedinthispaper.Collaborativetrackingisimplementedthroughsensorselection,andresultsoftrackingarepropagatedamongsensornodes.Inordertosavecommunicationresources,anewGaussiansumparticlefilter,calledGaussiansumquasiparticlefilter,toperformthetargettrackingispresented,inwhichonlymeanandcovarianceofmixandsneedtobecommunicated.BasedontheGaussiansumquasiparticlefilter,asensorselectioncriterionisproposed,whichiscomputationallymuchsimplerthanothersensorselectioncriterions.Simulationresultsshowthattheproposedmethodworkswellfortargettracking.

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简介：特征选择是在文章分类的重要话题之一。然而，大多数存在特征选择方法连续、低效被用于巨大的文本数据集合。在这容易，一个特征选择方法基于平行合作进化基因算法被介绍。介绍方法使用基因算法选择特征子集并且利用平行合作进化提高时间效率，因此它能快速获得更代表性的特征子集。试验性的结果证明为精确性比率和召回比率，介绍方法比信息获得，x2统计，和相互的信息方法好；有仅仅一个中央处理器的介绍方法的消费时间低于这三个方法的，但是介绍方法在使用平行策略以后是优异的。

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简介：Aimingatimprovingthetraditionalobject-orientedthree-layerarchitectureforcollaborativedesign,aservice-orientedframeworkformoulddesignisestablishedbyaddingaWebservicelayertodecouplingthedirectlinkingofuserinterfacetofunctionalmodules,makingthesystembeingplatformindependentandprogramminglanguageindependent,greatlyfacilitatingthereuseofexistingsoftwareandhardwareresources..NETtechnologyisadoptedtoimplementtheframework.Anexamplescenarioisintroducedtodemonstratehowthesystemworks.