Construction and Application of Event Knowledge Graph for Major Emergency Response Management
To explore knowledge modeling and applications in emergencies and associate emergency management knowl-edge with events,this study aims to help relevant departments scientifically understand the occurrence and evolution of emergencies and improve emergency management capabilities.Based on a knowledge-driven perspective of event evolu-tion and property association,this study proposes a process and methodology for constructing an event-knowledge graph.First,the schema layer of the event-knowledge graph is designed through event knowledge modeling,associating knowl-edge of emergencies,disaster-bearing events,and response management events.Second,the data layer of the event-knowl-edge graph is constructed through steps including event knowledge extraction,fusion,and memory.Finally,the study de-velops an example of an event-knowledge graph for heavy rainfall-related natural disasters and proposes applicable emer-gency management service scenarios.An example validation of a natural storm disaster emergency was conducted.The re-sults demonstrate that the event-knowledge graph not only describes the type and intensity of emergencies and their spatio-temporal evolution trends but also illustrates their impact on disaster-bearing carriers and their practical utility in emergen-cy management.This provides support for a scientific response to emergencies.
major emergencyevent knowledge graphresponse managementknowledge modelingknowledge extraction
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