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IntegratedCollaborativeInformationSystemsThesisProposalAhmetE.Topcu

1OutlineIntroductionMotivationResearchIssuesArchitecture2IntroductionEffortsforcollaborationandsharingbetweenusersandcommunities.GridVirtualOrganizationsSakaiCollaborationandLearningEnvironmentforEducationWeb2.0Representsnewweb-basedservices.ProvidesrichandlightweightonlinetoolsProvidesreusableservicesanddataUpdatessoftwareanddataoftenveryrapidlyProvidesinteractiveuserinterfacesProvidesanarchitectureforeasyusercontribution

3Web2.0ExamplesBlogs(blogger,GoogleBlog)Wikis(Wikipedia,WikiWikiWeb)SocialNetworkingTools(MySpace,LinkedIn)SocialBookmarking,YouTube)Domainofscientificresearch(CiteULike,Connotea,andBibsonomy)Domainspecificacademicsearchtools(CiteSeer,GoogleScholar,WindowsLiveAcademic)4567MotivationNeedforexploitinglargesetofdatasourcesGoogleScholar(GS),WindowsLiveAcademic(WLA)mayhavedifferentscopeUtilizingbestcapabilitiesofthetools GShasnumberofcitedpublications.WLAhasDigitalObjectIdentifier(DOI)89MotivationIntegrationNecessitiesforintegrationNeedforcommondataformatCompletenessNoeasywaytofindallpublicationsExample:AsearchinGoogleScholarforthepublicationsofourresearchlab(CommunityGridsLab)willreturnonlyabout20%ofthetotalGSsearchcontent.Wealthofinformationcontainedinnumerousfieldremainslargelyoutsidethescopeoftools1011ResearchIssuesIntegrationAmodeltointegratecommunitytools.AmodeltocollectrelateddocumentsofdatanaturallyPerformanceThecostofintegrationofthesystemsOverheadforextractinginformationanduploadingthemtothetoolsFlexibilityandExtensibilityEasytoaddandremoveservicemechanismEasytointegrateandcollaborateservicesorgadgets12ArchitecturePrinciplesCommunity-centricplatformofservicesIntegrationofdynamicpublication,searchtoolsintoCyberinfrastructurebasedscholarlyresearch.Integrationsuchscientificresearchdefiningmetadataandusingvariousurl,andmapthem.Servicesthataggregateinformationfromavarietyofsources(i.e.,“mash-up〞tools)andprovideaddedvaluetocommunitiesofresearchersDonotbuildanewtool.Reusethetools.EasiertolinktogetherallrelatinginformationcommonDigitalEntity(DE)

Mash-up:AWebpageorapplicationthatintegratescomplementary elementsfromtwoormoresources.13141516

Summary:Architecture BuildintegrationarchitectureWedonotreinventexistingtoolsUseexistingfeaturesoftoolsSupportsmicroformatsanduniversaltaggingservicesProvidescommonmetadataAllowstouseconsistentdataProvidescommonresolutionoffilters17UsageofIntegrationModelWehaveused/testedSemanticResearchGrid(SRG)(aprototypemodel)forpublishedscientificresearchpublicationsinCommunityGridsLabinwhichhas20students,andpost-docsandfacultymembersworks.18SecurityModelSecurityinweb2.0isinadequate.Providesecurityforinconsistent/inexistedsecuritymodelinweb2.0domain.Thereexistsanumberofsecuritymethods:Accesscontrolmatrix(ACL)TransportLayerSecurity(TLS)Role-basedaccesscontrol(RBAC)Task-basedaccesscontrol(TBCA)Weusedanaccess-controlmatrixmodeltoprovidesecurityforourinformationsystemSupportsmultiplegroupsandmultipleusersforeachobject.SimilartoUNIXfilesystemTheUnixRWXbitscorrespondstoRead,Write,andExecuteoperationforeachfileanddirectory.Inproposedsystem,DE(DigitalEntity)correspondtothefileelementandfoldercorrespondstothedirectoryelement.ForeachDEandfolder,therearethreetypesofaccessrightsdefinedinthesystems:Read,Write,andDelete.

19SecurityModelIIWehaveasecuritymodelthatsupportsLevelofAuthorizationRolesaredefinedasSuperAdministrator(SA)andGroupAdministrator(GA),User(U)ThesystemallowshavingmorethanoneSA.AnexistingSAcanaddotherSAstothesystem.SAcanassignanyUtobecomeGA,andremoveGAfromgroup.EachgroupshouldatleastoneGA.GAadd/removeUfromgroupUserprofile

Shareuserprofilebetweensites.20ContributionIntegrationWehavesuccessfullyintegratedGoogleScholarandWindowsLiveAcademicsearchtoolsandCiteUlike,Deliciousannotationtoolswhichprovideasystemthatallowdynamicpublication.WewillintegrateCiteeSeersearchtoolstoinvestigateourproposedarchitecture.PerformanceWewillinvestigatethecostofintegrationofthenewtoolsintothesystemsOverheadforextractinginformationanduploadingthemtothetoolsFlexibilityandExtensibilityWeprovidesflexibilityallowingintegrationofdifferenttoolshavingcommonmetadata.Easytoaddandextendservicemechanism21End Thanks!22ApplicationsI:SearchToolsTheyhavetwomainrolesintheusagescenariosofoursystem:Theywillbeusedtoseedthecreationofacommunity(e.g.,thepapersofaresearchgroup,thepapersonachemicalcompound,etc.).Theseseedswillthenbeexpandedandrefinedbyourcommunity-buildingtoolsandlinkedwiththeannotationtools.Theywillbeusedtoextractthe

citationcountofscientificpapers.23ApplicationsII:SearchToolsExtractinformationfromSearchDomain.Example:

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