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Constructionandapplicationofknowledgegraphforflooddefenseand
rescueofwaterinfrastructure
1,2,3
1,2,3
2
1,2
ZHANGDongliang ,ZHOUWei ,MAGang ,WANGXudong,
1,2
LIUYu ,WANGXiaomao 1,2,4
(1.InstituteofWaterEngineeringSciences,WuhanUniversity,Wuhan 430072,China;
2.StateKeyLaboratoryofWaterResourcesEngineeringandManagement,WuhanUniversity,Wuhan 430072,China;
3.KeyLaboratoryofRockMechanicsinHydraulicStructuralEngineeringofMinistryofEducation,
WuhanUniversity,Wuhan 430072,China;
4.CISPDRCorporation,Wuhan 430010,China)
Abstract:Theknowledgeplatform isanimportantcomponentindigitaltwinofwaterconservancy.However,
waterconservancyknowledgeisdispersedacrossmulti - sourcetexts,whichexhibitobviousunstructuredandfrag
mentedcharacteristics ,andknowledgeextractionandeffectiveutilizationfacechallenges.Toaddressestheissues
oflowdataqualityandunderutilizationofknowledgeinthefield,thisstudyfocusesonthetextsofflooddefense
andemergencyrescue,andproposesanintelligentmethodforconstructingaflooddefenseandemergencyrescue
knowledgegraphbyimprovingtheknowledgeextractionmodelandcombiningunstructureddataandexternalsemi -
structureddata.Initially ,alargelanguagemodelisemployedtoextracttermfromunstructuredtextsandconstruct
anontologymodelbasedontermthemes,apretrainingmoduleisusedtoenhancetextrepresentationfeatures,and
aconvolutionalmoduleisintroducedtoimprovetheentityknowledgeextractionmodel,andanentitydataenhance
mentmethodisproposedtoimprovemodelaccuracy.Thenexternalencyclopediadataisextractedtoexpandthe
knowledgecoveragetobuildacompleteflooddefenseandrescueknowledgegraph.Experimentalresultsdemonstrate
thattheproposedmodelachievesan F1scoreof89.91% inentityknowledgeextraction,significantlyoutperforming
baselinemodels.Finally,theapplicationmethodofknowledgegraphinthefieldofflooddefenseandrescueisin
troduced ,whichcanformaknowledgeenginefordigitaltwinofwaterconservancyconstruction,providingknowl
edgesupportforfloodcontrolresearchanddecision - making.
Keywords:flooddefenseandrescue;knowledgegraph;knowledgeextraction;multi - sourcedata;digitaltwin
(责任编辑:李 娜)
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