资源描述：
《a distributed multimedia environmental information systemnew》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。
1、ToappearinIEEEInternationalConferenceonMultimediaComputingandSystems,Washington,DC,May1995ADistributed,MultimediaEnvironmentalInformationSystemJosephL.Sharnowski,GeraldC.Gannod,andBettyH.C.ChengDepartmentofComputerScienceMichiganStateUniversityEastLansing,Michigan48824AbstractScienti cr
2、esearchaddressingglobalchangecontin-uestogeneratelargequantitiesofinformationforSite2analysisandunderstanding.However,thevolume,distributednature,anddiversityofthisinformationSite3Site1prohibitsconvenientaccessbymanypotentialusers.Thispaperdescribesanobject-oriented,distributedsystemcons
3、istingofanintegratedcollectionofsoft-Archivewaretoolsthatallowsausertoqueryandmanipu-latedistributed,multimediadatasetsthroughagraph-Site6Site5icaluserinterface(GUI).Thetool,enforms(Envi-LegendronmentalInformationSystem),iscurrentlypopulatedSite4Userprocesseswithenvironmentalinformationf
4、oruseinaregionalServerprocesseswatershedanalysisproject.Connection1IntroductionFigure1:Ahigh-levelviewofthearchitectureInthepast,NASAandotheragencieshavefocusedontheacquisitionofdataratherthantheintegrationtershedanalysisproject[1,2].enformsprovidesorthedisseminationofdata.Manyorganizati
5、onsad-graphics-based,interactiveretrievalandmanipulationdressinggrandchallengeproblems,suchasthosede-ofthedistributed,multimediainformation.Thesys- nedbyearthsciences,requiretheintegrationofbothtemarchivecontainsawiderangeofinformationphysicalandhumanresourcedatabasesinaninter-items,incl
6、udingdocuments,satelliteimagery,aerialactivemanner.Suchacapabilityallowsreasonablyphotographs,color-codedcharts,audio les,andan-informedpolicyanalystsandrelatedsta toqueryanimations.Metadataforthedata(descriptionsaboutEnvironmentalScienceWorkstation"soastobetterthedata,includingitstype,
7、applicabletools,andrel-understandhowhumanusesimpactournaturalre-evanthierarchyclassi cations)areusedtode nethesourcebase.GUI,thusenablinguserstoconstructqueriesgraphi-Thispaperdescribesanobject-oriented,distributedcallyaccordingtothecontextprovidedbythemeta-multimediasyst
