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海量异类交通数据统一形式化表达 Title:FormalizingHeterogeneousTrafficDatainaUnifiedFormat Abstract: Withtheincreasingavailabilityoftrafficdata,ithasbecomeessentialtofindeffectivewaystointegrateandanalyzeheterogeneoustrafficinformationcollectedfromvarioussources.Inthispaper,weaimtoaddressthechallengeofunifyingdifferentformsoftrafficdataintoastandardizedformat,enablingcomprehensiveanalysisanddeeperinsights.Weproposeasystematicapproachtoformalizeandharmonizethediversetypesoftrafficdata,includingsensordata,GPStraces,trafficvolumerecords,andsocialmediafeeds.Theunifiedformatallowsforefficientintegration,manipulation,andanalysisofthedata,ultimatelyleadingtomoreinformeddecision-makinginurbantransportationplanning,trafficmanagement,andsafetyenhancement. 1.Introduction 1.1Background 1.2Motivation 1.3Objective 2.HeterogeneousTrafficData 2.1SensorData 2.2GPSData 2.3TrafficVolumeRecords 2.4SocialMediaFeeds 3.ChallengesinDataIntegration 3.1SemanticVariability 3.2DataQuality 3.3DataIncompleteness 3.4Scalability 4.FormalizingTrafficData 4.1Pre-processing 4.2DataNormalization 4.3OntologyDevelopment 4.4MappingandAlignment 5.UnifiedFormatforTrafficData 5.1DataStructure 5.2TaggingandMetadata 5.3Interoperability 5.4ScalabilityandPerformance 6.CaseStudy:ImplementationandEvaluation 6.1DataCollection 6.2DataIntegrationProcess 6.3PerformanceEvaluation 7.ApplicationsandBenefits 7.1UrbanTransportationPlanning 7.2TrafficManagement 7.3SafetyEnhancement 8.ChallengesandFutureDirections 8.1DataPrivacyandSecurity 8.2Real-timeDataIntegration 8.3MachineLearningandPredictiveAnalytics 9.Conclusion Thepaperfocusesonformalizingandunifyingheterogeneoustrafficdataintoastandardizedformat.Itstartsbyprovidingbackgroundandmotivationfortheresearch.Thechallengesinintegratingandanalyzingdiversetrafficdataarethendiscussed,includingsemanticvariability,dataquality,incompleteness,andscalability.Theproposedapproachforformalizingtrafficdataincludespre-processing,datanormalization,ontologydevelopment,andmappingandalignmenttechniques. A