IDU大规模社会网络及其HIV传播模拟

Simulating of IDU Large Scale Social Network and HIV Transmission

引入复杂Agent网络模型建立注射吸毒(IDU)共享网络的HIV传播模拟模型。在传统无标度网络配置模型的基础上,通过增加邻域选择机制和三角形形成机制,提出了一种能应用于大规模病毒传播的IDU社会网络生成和演化算法。模型可实现指数可调幂律度分布、高聚类系数和度-度相关等社会网络特征;网络中的边可以断开、重连,网络中的节点可以退出、进入,网络具有动态特性。网络中节点Agent模型中包括个体的行为、病程及个体对疾病干预措施的响应机制,通过节点Agent和网络的协同作用,实现个体行为、个体之间共用注射器吸毒构成的社会网络和干预政策耦合演化的HIV传播模拟模型。对生成的网络进行了社会网络参数度量,利用云南省的数据对吸毒网络HIV传播干预情景进行仿真研究。

We develop an agent-based complex network model to generate large social network of syringe sharing of Injecting Drug Users（IDU）and simulate HIV transmission on the IDU network.Using the classical configuration model,combined with mechanism for neighborhood selection and triangle formation,we propose a new generation and evolution model of IDU social network for studying the largescale virus propagation.This model can simulate some major features of the social network,including a power low degree distribution with an adjustable exponent,high clustering coefficient and positive degreedegree correlation.The dynamics of IDU social network is supported through IDU partnership/links dissolution and reformation,and the individual/vertices entering and exiting from the network. We construct the model for simulating the coupling evolution with individual behaviors,intervention measures and IDU social networks,and the HIV transmission by realizing the interaction between agents and the network.The structural properties of IDU social network are studied numerically,and the different scenario simulations of the IDU HIV propagation under different intervention in Yunnan China are analyzed.