Dunbar的号码
Calling Dunbar's Numbers
摘要：
社会脑假说预测，人类在任何给定时间平均有大约150个关系。在这150个朋友中，有一个自我的朋友层，其中一个层中的朋友数量随着情感亲密度的降低而增加。在这里，我们分析了移动电话数据集，首先，以确定是否可以根据通话频率识别朋友层。然后，我们应用不同的聚类算法，打破自我的呼叫频率成集群，并比较每个集群中的改变与社会脑假设预测的层大小的数量。在这个数据集中，我们找到了分层结构存在的有力证据。聚类产生的结果与以前的研究匹配良好的最内层和最外层，但在层之间，我们观察到很大的变化。
英文摘要：
The social brain hypothesis predicts that humans have an average of about 150 relationships at any given time. Within this 150, there are layers of friends of an ego, where the number of friends in a layer increases as the emotional closeness decreases. Here we analyse a mobile phone dataset, firstly, to ascertain whether layers of friends can be identified based on call frequency. We then apply different clustering algorithms to break the call frequency of egos into clusters and compare the number of alters in each cluster with the layer size predicted by the social brain hypothesis. In this dataset we find strong evidence for the existence of a layered structure. The clustering yields results that match well with previous studies for the innermost and outermost layers, but for layers in between we observe large variability.
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。
