吉林大学学报(理学版) ›› 2021, Vol. 59 ›› Issue (6): 1511-1516.

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基于改进SEIR算法的疫情传播趋势检测方法

燕杨1,  郭皓钰1, 魏宇航2, 尤紫如1, 肖志强3, 黄文博1   

  1. 1. 长春师范大学 计算机科学与技术学院, 长春 130032;2. 吉林大学 白求恩第一临床医学院, 长春 130021; 3. 吉林大学 地球科学学院, 长春 130021
  • 收稿日期:2021-04-23 出版日期:2021-11-26 发布日期:2021-11-26
  • 通讯作者: 黄文博 E-mail:huangwenbo@sina.com

Epidemic Propagation Trend Detection Based on Improved SEIR Algorithm

YAN Yang1, GUO Haoyu1, WEI Yuhang2,  YOU Ziru1, XIAO Zhiqiang3, HUANG Wenbo1   

  1. 1. School of Computer Science and Technology, Changchun Normal University, Changchun 130032, China;2. The First Bethune Clinical Medical College of Jilin University, Changchun 130021, China; 3. College of Earth Sciences, Jilin University, Changchun 130021, China
  • Received:2021-04-23 Online:2021-11-26 Published:2021-11-26

摘要: 通过对传统SEIR(susceptible-exposed-infectious-removed)算法进行优化重建, 提出一种改进的SEIR算法. 该算法通过为感染率β添加衰减函数, 对数据拟合得到随时间增长而改变的β. 仿真实验结果表明, 该算法在测试集上的平均MSE(mean square error)只有0.11, 相比于目前已有的其他算法, 误差值显著降低.

关键词: SEIR算法, 衰减函数, ARIM算法, 传播趋势检测

Abstract: By optimizing and reconstructing the traditional SEIR (susceptible-exposed-infectious-removed) algorithm, we proposed an improved SEIR algorithm. The algorithm added attenuation function to the infection rate β, and the data were fitted to get the infection rate β that changed with time. Simulation results show that the average MSE (mean square error) of the algorithm on the test set is only 0.11, which significantly reduced the error value compared with other existing algorithm.

Key words:  , susceptible-exposed-infectious-removed (SEIR) algorithm, attenuation function, ARIM algorithm,  , propagation trend detection

中图分类号: 

  • TP391