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通过对新冠疫情相关信息收集，进行分类、归纳，取得事件之间的联系，可以构成一个丰富的新冠信息知识图谱。新冠信息知识图谱的构建能够充分挖掘信息价值，为人们提供直观的参考依据。本项目基于NEO4J图数据库，来进行COVID-19病例活动行径信息的知识图谱构建与应用，达到追溯传播途径、疫情防控的目的·。
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