在意大利Covid背景下匿名移动数据的质量评估和社区检测方法
Jules Morand1,2, Shoichi Yip3, Yannis Velegrakis3,4
1University of Trento, via Sommarive 14, 38123, Trento, Italy. jules.morand@unitn.it.
Scientific reports
|February 27, 2024
概括
评估匿名移动数据的可靠性至关重要. 两种方法,贪的模块化集群和关键变量选择,确定了类似的空间社区,为封锁措施的政策提供了信息.
科学领域:
- 网络科学 网络科学
- 计算社会科学 计算社会科学
- 流行病学 流行病学
背景情况:
- 评估部分匿名流动数据的可靠性对于了解人口流动至关重要.
- 现有的空间社区检测方法捕捉了移动模式的不同方面.
研究的目的:
- 将贪的模块化集群 (GMC) 和关键变量选择 (CVS) 进行比较,用于从移动数据中识别空间社区.
- 评估SARS-CoV-2大流行之前和期间匿名移动数据的可靠性.
主要方法:
- 利用Facebook用户移动数据和意大利国家统计局 (Istat) 数据构建每日省际移动网络.
- 应用了佩伦-弗罗贝尼乌斯定理来分析随机网络的静止人口密度.
- 采用时间聚类来识别国家封锁,并比较GMC和CVS社区对封锁和非封锁网络的检测.
主要成果:
- 平均随机网络的静止人口密度状态与Istat数据相比,但随着网络修剪而降低.
- 在封锁和非封锁期间,GMC和CVS方法都为意大利省级网络产生了类似的空间社区分区.
- 信息变化 (VI) 证实了GMC和CVS生成的分区的相似性.
结论:
- 该研究展示了一种分析匿名移动数据和空间社区检测的可靠方法.
- 调查结果可以为公共卫生政策提供信息,例如优化锁定干预措施的规模.
- 可概括的方法可以应用于不同的地理尺度和国家.
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