[Purpose/significance] Major emergencies are an important part of the overall national security concept. In order to respond to major emergencies more quickly and efficiently and reduce the threats to national security, social stability, and people's lives and properties, this article proposes to construct major event knowledge graph, it reveals the law and logic of the evolution of major emergencies, and can assist relevant departments in responding to and making decisions on major emergencies.[Method/process] This paper selected media reports, research reports and academic papers of the COVID-19 epidemic that had a wide range of international attention and influence, and used ontology construction and pattern matching methods for event extraction and event relationship extraction, to construct an affair map of major emergencies, and to analyze the affair knowledge and transmission paths of the evolution of the event.[Result/conclusion] The research results show that the affair map of major emergencies can reveal the evolution logic and laws of major emergencies, and then grasp the development context of events from a macro level, and provide scientific and accurate basis for the response and management of major emergencies.
Zhang Haitao
,
Li Jiawei
,
Liu Weili
,
Liu Yashu
. Research on the Construction of Event Knowledge Graph of Major Emergencies[J]. Library and Information Service, 2021
, 65(18)
: 133
-140
.
DOI: 10.13266/j.issn.0252-3116.2021.18.014
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