arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1111.0073physics.soc-phcs.SI
收藏

具有异质性和同质性的网络中的扩散与传染

Diffusion and Contagion in Networks with Heterogeneous Agents and Homophily

Matthew O. Jackson, Dunia Lopez-Pintado

摘要:

我们研究一种行为(一个想法,购买一种产品,患有一种疾病,采用一种文化时尚或一种技术)是如何在一个表现出隔离或同质性(代理人倾向于与类似于自己的其他人联系)的社会网络中的代理人之间传播的。个体通过其类型来区分(例如,种族、性别、年龄、财富、宗教、职业等)这与有偏见的互动模式一起,导致采用率的异质性。我们确定的条件下,行为扩散,并成为持久的人口。这些条件与一个社会中的同性恋水平、各种类型的收养或感染的潜在倾向以及每种类型如何与自己的类型相互作用有关。特别是,我们表明,同质性可以促进扩散从一个小的初始种子的采用者。

英文摘要:

We study how a behavior (an idea, buying a product, having a disease, adopting a cultural fad or a technology) spreads among agents in an a social network that exhibits segregation or homophily (the tendency of agents to associate with others similar to themselves). Individuals are distinguished by their types (e.g., race, gender, age, wealth, religion, profession, etc.) which, together with biased interaction patterns, induce heterogeneous rates of adoption. We identify the conditions under which a behavior diffuses and becomes persistent in the population. These conditions relate to the level of homophily in a society, the underlying proclivities of various types for adoption or infection, as well as how each type interacts with its own type. In particular, we show that homophily can facilitate diffusion from a small initial seed of adopters.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑