[1]赵敬,夏承遗,孙世温,等.复杂网络上同时考虑感染延迟和非均匀传播的SIR模型[J].智能系统学报,2013,8(2):128-134.[doi:10.3969/j.issn.1673-4785.201210027]
ZHAO Jing,XIA Chengyi,SUN Shiwen,et al.A novel SIR model with infection delay and nonuniform transmission in complex networks[J].CAAI Transactions on Intelligent Systems,2013,8(2):128-134.[doi:10.3969/j.issn.1673-4785.201210027]
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《智能系统学报》[ISSN 1673-4785/CN 23-1538/TP] 卷:
8
期数:
2013年第2期
页码:
128-134
栏目:
学术论文—智能系统
出版日期:
2013-04-25
- Title:
-
A novel SIR model with infection delay and nonuniform transmission in complex networks
- 文章编号:
-
1673-4785(2013)02-0128-07
- 作者:
-
赵敬1,2,夏承遗1,2,孙世温1,2,王莉1,2
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1. 天津理工大学 天津市智能计算与软件新技术重点实验室,天津 300384;
2. 天津理工大学 省部共建教育部计算机视觉与系统重点实验室,天津 300384
- Author(s):
-
ZHAO Jing1,2, XIA Chengyi1,2, SUN Shiwen1,2, WANG Li1,2
-
1. Tianjin Key Laboratory of Intelligence Computing and Novel Software Technology;
2. Key Laboratory of Computer Vision and Systems (Ministry of Education), Tianjin University of Technology, Tianjin 300384, China
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- 关键词:
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感染延迟; 非均匀传播; 临界值; 复杂网络; SIR模型
- Keywords:
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infection delay; nonuniform transmission; critical threshold; complex networks; SIR model
- 分类号:
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TP18;O231.5
- DOI:
-
10.3969/j.issn.1673-4785.201210027
- 文献标志码:
-
A
- 摘要:
-
为了能更有效地分析和理解传染性疾病的传播,提出了一个新颖的SIR模型,在这个传播模型里同时考虑了影响疾病传播行为的2个因素:感染延迟和非均匀传播.基于平均场理论和大量的数值仿真,给出了疾病传播临界值的解析公式,并发现感染延迟和非均匀传播对临界值影响截然不同:感染延迟能够在很大程度上减小传播阈值,促进疾病在人群中的传播;而非均匀传播能够增大传播临界值,阻碍疾病的大规模传播.当前的研究结果有助于深入理解真实复杂系统中的疾病传播行为,充分考虑感染延迟、传播机制和实际人群的拓扑结构等因素在疾病传播中的作用,从而为制定有效的传染病预防和控制措施提供理论依据.
- Abstract:
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In order to analyze and understand the spreading behavior of infectious diseases, the authors propose to examine susceptible-infected-removed (SIR) model. The researchers simultaneously introduce into the epidemic model the two factors: influencing disease spreading behavior, and infection delay and nonuniform transmission, utilizing the SIR model. Based on the mean-field approximation and large-scale numerical simulations, the analytical results of critical thresholds of disease spreading were derived, along with the infection delay and the nonuniform transmission having a distinct impact on the critical threshold. The infection delay can greatly decrease the critical threshold and facilitate the spread of epidemics, while the nonuniform transmission can augment the critical threshold and hinder the epidemic spreading in complex networks. Current results are conducive to further understand the epidemic spreading inside the complex real systems, as well as to fully consider the roles of infection delay, transmission factors and topological structure of population in the spreading of diseases. The results also provide a number of theoretical evidence to design more effective epidemic prevention and containment measures.
备注/Memo
收稿日期:2012-10-16.
网络出版日期:2013-04-19.
基金项目:国家自然科学基金资助项目(60904063,61203138);天津市应用基础及前沿技术研究计划资助项目(11JCYBJC06600);天津市高等学校科技发展基金资助项目(20090813).
通信作者:夏承遗.
E-mail:xialooking@163.com.
作者简介:
赵敬,女,1986年生,硕士研究生,主要研究方向为复杂网络上病毒传播.
夏承遗,男,1976年生,副教授,博士,主要研究方向为复杂系统与复杂网络建模分析、传播动力学、演化博弈动力学等.获天津市科技进步三等奖1项,目前主持国家自然科学基金1项,省部级科研项目1项,其他科技计划1项.发表学术论文30余篇,其中被SCI检索近20篇.
孙世温,女,1980年生,讲师,博士,主要研究方向为复杂动态网络、网络鲁棒性、软件工程.主持完成天津市高等学校科技发展基金1项、目前在研国家自然科学基金1项.发表学术论文近10篇,其中被SCI检索3篇,EI检索4篇.
更新日期/Last Update:
2013-05-26