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arXiv 1201.4564physics.soc-phcs.SI
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社交网络中的同质性与长期整合

Homophily and Long-Run Integration in Social Networks

Yann Bramoullé, Sergio Currarini, Matthew O. Jackson, Paolo Pin, Brian W. Rogers

摘要:

我们建模网络的形成时,异构节点依次进入,并通过随机会议和基于网络的搜索,但与类型依赖的偏见形成连接。我们表明,有“长期的整合”,即组成的类型在足够老的节点的社区接近全球类型分布,提供了基于网络的搜索是公正的。然而,年轻节点的连接仍然反映了有偏见的会议过程。当存在两种类型和基于位置的偏差时,我们得到了基于类型的度分布和群体水平的同质性模式。最后,我们说明了模型的实证应用物理学期刊的引文数据方面。

英文摘要:

We model network formation when heterogeneous nodes enter sequentially and form connections through both random meetings and network-based search, but with type-dependent biases. We show that there is "long-run integration," whereby the composition of types in sufficiently old nodes' neighborhoods approaches the global type distribution, provided that the network-based search is unbiased. However, younger nodes' connections still reflect the biased meetings process. We derive the type-based degree distributions and group-level homophily patterns when there are two types and location-based biases. Finally, we illustrate aspects of the model with an empirical application to data on citations in physics journals.

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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