计算机工程与科学2024，Vol.46Issue(8)：1466-1472,7.DOI:10.3969/j.issn.1007-130X.2024.08.015
基于健康码打卡数据的疫情轨迹描述模型研究
An epidemic trajectory description model based on health code punch-in data
万泽宇 1张飞舟1
作者信息
- 1. 北京大学地球与空间科学学院,北京 100871
- 折叠
摘要
Abstract
The epidemic has profoundly changed the world's landscape.In the current modeling and analysis of the epidemic's spatiotemporal dynamics,there is a lack of accurate descriptions of individual and collective trajectories,making it difficult to meet the demands for precision epidemic prevention.To address this issue,based on the analysis of existing methods for spatiotemporal analysis of the epidemic and trajectory description models,combined with health code punch-in data,a spatiotemporal three-dimensional coordinate system is established with latitude and longitude as the x and y axes and time as the z axis.The health code punch-in data are used as trajectory nodes to present the spatiotemporal tra-jectories of carriers and close contacts.Individual,paired,and group trajectories are accurately described in sequence,thereby constructing a"mountain-shaped"trajectory description model that in-tegrates spatiotemporal topological relationships.This model accurately locates the spatiotemporal range that needs to be controlled within the three-dimensional coordinate system,thereby achieving precise epidemic prevention.Experiments conducted on the Foursquare Dataset simulation dataset demonstrate that the"mountain"model effectively reduces the scope of investigation and the number of personnel,and it has broad application scenarios.关键词
轨迹描述模型/精准防疫/健康码打卡Key words
trajectory description model/precise epidemic prevention/health code punch-in data分类
信息技术与安全科学引用本文复制引用
万泽宇,张飞舟..基于健康码打卡数据的疫情轨迹描述模型研究[J].计算机工程与科学,2024,46(8):1466-1472,7.
