arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2210.01005cs.SIphysics.soc-ph
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基于人类移动数据量化COVID-19传播风险:用于有效联系人追踪的个性化PageRank方法

Quantifying COVID-19 transmission risks based on human mobility data: A personalized PageRank approach for efficient contact-tracing

Jiali Zhou, Zhan Zhao, Jiangping Zhou

摘要:

鉴于COVID-19广泛而持久的影响,特别是其空间传播动态备受关注。了解这些动态有助于公共卫生专业人员和城市管理人员设计和部署有效的接触者追踪和治疗措施。然而,大多数现有的研究集中在总的流动流量,很少利用广泛可用的分解一级的人口流动数据。在本文中,我们提出了一种个性化的PageRank(PPR)方法来估计COVID-19传播风险,该方法基于人和位置的二分网络。该方法结合了两个移动模式的个人和他们的时空相互作用。为了验证所提出的方法的适用性和相关性,我们基于交通灵巧卡数据,在一个小型合成网络和一个来自中国香港的真实移动网络中,研究了COVID-19病例的传播与城市内移动模式之间的相互作用。我们比较了召回率(敏感性),准确性和斯皮尔曼相关系数之间的估计传播风险和实际病例数的基础上各种大规模跟踪和测试策略,包括基于PPR的,基于PageRank(PR)的,基于位置的,基于路线的,和基本情况(无策略)。结果表明,基于PPR的方法效率最高,准确率最高,与实际案例数的Spearmans相关系数最大。这证明了PPR的传播风险估计的价值和有效的接触跟踪和测试,将个人的移动模式的重要性。

英文摘要:

Given its wide-ranging and long-lasting impacts, COVID-19, especially its spatial spreading dynamics has received much attention. Knowledge of such dynamics helps public health professionals and city managers devise and deploy efficient contact-tracing and treatment measures. However, most existing studies focus on aggregate mobility flows and have rarely exploited the widely available disaggregate-level human mobility data. In this paper, we propose a Personalized PageRank (PPR) method to estimate COVID-19 transmission risks based on a bipartite network of people and locations. The method incorporates both mobility patterns of individuals and their spatiotemporal interactions. To validate the applicability and relevance of the proposed method, we examine the interplay between the spread of COVID-19 cases and intra-city mobility patterns in a small synthetic network and a real-world mobility network from Hong Kong, China based on transit smart card data. We compare the recall (sensitivity), accuracy, and Spearmans correlation coefficient between the estimated transmission risks and number of actual cases based on various mass tracing and testing strategies, including PPR-based, PageRank (PR)-based, location-based, route-based, and base case (no strategy). The results show that the PPR-based method achieves the highest efficiency, accuracy, and Spearmans correlation coefficient with the actual case number. This demonstrates the value of PPR for transmission risk estimation and the importance of incorporating individual mobility patterns for efficient contact-tracing and testing.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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