Clustering and link prediction for mesoscopic COVID-19 transmission networks in Republic of Korea

Author:

Kwon Okyu1,Jo Hang-Hyun2ORCID

Affiliation:

1. National Institute for Mathematical Sciences 1 , Daejeon 34047, Republic of Korea

2. Department of Physics, The Catholic University of Korea 2 , Bucheon 14662, Republic of Korea

Abstract

We analyze the dataset of confirmed cases of severe acute respiratory syndrome coronavirus 2 (COVID-19) in the Republic of Korea, which contains transmission information on who infected whom as well as temporal information regarding when the infection possibly occurred. We derive time series of mesoscopic transmission networks using the location and age of each individual in the dataset to see how the structure of these networks changes over time in terms of clustering and link prediction. We find that the networks are clustered to a large extent, while those without weak links could be seen as having a tree structure. It is also found that triad-based link predictability using the network structure could be improved when combined with additional information on mobility and age-stratified contact patterns. Abundant triangles in the networks can help us better understand mixing patterns of people with different locations and age groups, hence the spreading dynamics of infectious disease.

Funder

National Institute for Mathematical Sciences

National Research Foundation of Korea

Publisher

AIP Publishing

Subject

Applied Mathematics,General Physics and Astronomy,Mathematical Physics,Statistical and Nonlinear Physics

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