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arXiv 2005.09996cs.SIphysics.soc-phstat.ME
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社会影响力模型中的异质易感性

Heterogeneous Susceptibilities in Social Influence Models

Daniel K. Sewell

摘要:

网络自相关模型被广泛用于评估社会影响力对某些感兴趣变量的影响。这是一大类模型,通过将网络邻接矩阵纳入数据的联合分布中,来吝啬地解释邻居如何影响自己的行为或观点。然而,这些模型假设对社会影响的敏感性是同质的,这在许多情况下可能是一个强有力的假设。本文提出了一种分层模型,允许的影响参数是一个功能的个人属性和/或本地网络拓扑特征。我们推导出一个近似的后验分布的一般框架,适用于杜宾,网络效应,网络干扰,或网络移动平均自相关模型。所提出的方法也可以应用于调查的背景下,自我中心的网络数据的社会影响力的决定因素。我们将我们的方法应用于通过手机收集的数据集,在该数据集中,我们确定了社会影响对体育活动水平的影响,以及课堂数据,我们调查了同伴对学生反抗的影响。有了这最后一组数据,我们还研究了所提出的自我中心网络模型的性能。

英文摘要:

Network autocorrelation models are widely used to evaluate the impact of social influence on some variable of interest. This is a large class of models that parsimoniously accounts for how one's neighbors influence one's own behaviors or opinions by incorporating the network adjacency matrix into the joint distribution of the data. These models assume homogeneous susceptibility to social influence, however, which may be a strong assumption in many contexts. This paper proposes a hierarchical model that allows the influence parameter to be a function of individual attributes and/or of local network topological features. We derive an approximation of the posterior distribution in a general framework that is applicable to the Durbin, network effects, network disturbances, or network moving average autocorrelation models. The proposed approach can also be applied to investigating determinants of social influence in the context of egocentric network data. We apply our method to a data set collected via mobile phones in which we determine the effect of social influence on physical activity levels, as well as classroom data in which we investigate peer influence on student defiance. With this last data set, we also investigate the performance of the proposed egocentric network model.

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。

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