论文标题
三合会封闭，优先和反质量附件之间的非平凡相互作用：在线数据的新见解
A Nontrivial Interplay between Triadic Closure, Preferential, and Anti-Preferential Attachment: New Insights from Online Data
论文作者
论文摘要
本文介绍了对时间网络的分析，该分析描述了大规模（约30,000）个在线社交网络用户（固定城市居民）的社交联系。我们测试了主要网络形成决定因素（传递性，优先依恋和社会选择）如何有助于网络发展。除其他事项外，我们发现社会选择确实会影响领带的出现，而其对取消领带的影响还不清楚。我们报告说，传递性表现出对网络动力学的最强影响。令人惊讶的是，更仔细的外观揭示了传递性，优先依恋和反质量依恋机制之间的有趣而复杂的相互作用。对于给定的一对未连接的节点，如果它们没有相互连接，那么TIE创建的可能性就会与节点度的总和上升 - 这正是假定优先附着机制可以做到的。取而代之的是，如果节点至少有一个常见的朋友，那么如果两个节点只有几个朋友，则会达到最高的领带可能出现的可能性 - 这种现象称为反质量依恋。我们试图通过吸引社会社区和领导人的观念来解释这一发现。
This paper presents an analysis of a temporal network that describes the social connections of a large-scale (~ 30,000) sample of online social network users, inhabitants of a fixed city. We tested how the main network formation determinants - transitivity, preferential attachment, and social selection - contribute to network evolution. Among other things, we found that opinion social selection does affect tie appearing whereas its impact on tie removing is rather unclear. We report that transitivity displayed the strongest effect on network dynamics. Surprisingly, a closer look revealed an intriguing and complex interplay between the transitivity, preferential attachment, and anti-preferential attachment mechanisms. For a given pair of unconnected nodes, if they have no mutual connections, then the probability of tie creation goes up with the sum of node degrees - that is exactly what the preferential attachment mechanism is assumed to do. Instead, if the nodes have at least one common friend, then the highest probability of tie appearing is achieved if both the nodes have only a few friends - a phenomenon that is called anti-preferential attachment. We attempted to explain this finding by appealing to the notions of social communities and leaders.
