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1、JointOpenGroup,FederalSemanticInteroperabilityCommunityofPractice(SICoP),andFederalMetadataManagementConsortiumTutorial,2-5p.m.Friday,April28,2006,HiltonCrystalCity,Arlington,Virginia http://colab.cim3.net/cgi-bin/wiki.pl?OpenGroupSICoP_2006_04_27TutorialontheSemant
2、icWebKennethBaclawskiCollegeofComputerandInformationScienceNortheasternUniversityForallofitsusefulness,theWebisorientedmuchmoretowardhumaninteractionthanautomatedprocessing.WhiletheWebgivesaccesstoinformation,itdoesnotallowonetoeasilyintegratedifferentdatasourcesorto
3、incorporateadditionalanalysistools.TheSemanticWebaddressestheseproblemsbyannotatingWebresourcesandbyprovidingreasoningandretrievalfacilitiesfromheterogeneoussources.ThistutorialintroducesthebasiclanguagesoftheSemanticWeb.TheobjectiveistocoverthemajorWebontologylangua
4、ges,whattheymeanandhowtheyareused.Theemphasiswillbeonpragmaticapplicationissues.ThegoalisforparticipantstohaveaunderstandingoftheSemanticWebsufficientforthemtobeabletomakedecisionsaboutwhetherandhowtousetheSemanticWeb.GoalsandObjectives:TheobjectiveistocovertheSemant
5、icWeblanguages(XML,RDF,andOWL),whattheymeanandhowtheyareused.Theemphasiswillbeonpragmaticissues.ThegoalisforparticipantstohaveaunderstandingoftheSemanticWebsufficientforthemtobeabletomakedecisionsaboutwhethertouseitatall,andifsothenhowtouseit.AudienceandPrerequisites
6、:Thetutorialisforageneralaudience,butsomeexperiencewithdatabasesandXMLwillbeassumed.Noprogrammingexperienceisnecessary.OutlineI.TheSemanticWebLanguages.Startingwithordinaryflatfiles,thetutorialintroducesprogressivelymorecomplexdata,including:taxonomies,generalhierarc
7、hiesandrelationships.ThesemanticsofXML,RDFandthethreeOWLlanguageswillbeexplainedandcompared.Theadvantagesanddisadvantagesofthevariouslanguageswillbediscussed.Summaryoftopicsinthispart:A.FromflatfilestohierarchiesandXMLB.RulebasedsystemsC.ResourceDescriptionFrameworkD
8、.WebOntologyLanguageII.SemanticWebUsage.TheSemanticWebhasmanyadvantagesifiteverbecomesascommonplaceandubiquitousastheWebistoday.Sem
