计算机科学 ›› 2014, Vol. 41 ›› Issue (1): 72-79.
何晓力,毕贵红,王海瑞
HE Xiao-li,BI Gui-hong and WANG Hai-rui
摘要: HIV的传播是个体的行为、疾病的干预措施和个体之间的社会网络协同演化的结果。提出了基于agent的动态加权二部无标度网络方法的异性HIV传播和干预仿真模型。二部网络中的女性人群根据高危行为不同分为普通人群和女性性工作者(Female Sex Workers,FSW),男性人群根据高危行为不同分为普通人群和女性性工作者客户(Clients of female sex worker,CSW)。给出了利用配置模型快速生成指数可调的异性二部无标度网络的生成算法,其根据异性二部网络中单位时间内性行为次数的分配算法确定二部网络中边的权值,构成二部加权无标度网络。网络中的伙伴关系有固定关系、偶然关系型和临时关系,二部网络中的边可随边的维持时间的结束而断开和重连,网络具有动态特性。个体/agent模型描述了个体高危行为、病程、个体社会结构与干预措施之间的相互影响关系。仿真实验分析了个体高危行为是否采用安全措施、是否参加自愿咨询检测和是否参加抗病毒治疗等干预措施对疾病传播的影响。
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