Author: Qinghe Liu; Zhicheng Liu; Deqiang Li; Zefei Gao; Junkai Zhu; Junyan Yang; Qiao Wang
Title: Assessing the Tendency of 2019-nCoV (COVID-19) Outbreak in China Document date: 2020_2_11
ID: 5dd89gnm_17
Snippet: The outbreak of COVID-19 occurred around the Spring Festival in China, involving nearly a billion people moving around the country. Based on this feature, we constructed a (time-varying) directed graph to characterize the traffic flows across the nation, in which each node stands for a province (or city). The flow intensity ‫ܨ‬ from i-th node to j-th one indicates the strength of the population flow. To perform this model, we collected popul.....
Document: The outbreak of COVID-19 occurred around the Spring Festival in China, involving nearly a billion people moving around the country. Based on this feature, we constructed a (time-varying) directed graph to characterize the traffic flows across the nation, in which each node stands for a province (or city). The flow intensity ‫ܨ‬ from i-th node to j-th one indicates the strength of the population flow. To perform this model, we collected population migration data from one of the biggest online location based service providers, Baidu, which provides daily intra-province population migration strength. In i-th city or province, this floating population is defined as follows:
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