González Marta C, Lind Pedro G, Herrmann Hans J
Institute for Computational Physics, Universität Stuttgart, Pfaffenwaldring 27, D-70569 Stuttgart, Germany.
Phys Rev Lett. 2006 Mar 3;96(8):088702. doi: 10.1103/PhysRevLett.96.088702.
We propose a model of mobile agents to construct social networks, based on a system of moving particles by keeping track of the collisions during their permanence in the system. We reproduce not only the degree distribution, clustering coefficient, and shortest path length of a large database of empirical friendship networks recently collected, but also some features related with their community structure. The model is completely characterized by the collision rate, and above a critical collision rate we find the emergence of a giant cluster in the universality class of two-dimensional percolation. Moreover, we propose possible schemes to reproduce other networks of particular social contacts, namely, sexual contacts.
我们提出了一种基于移动粒子系统的移动代理模型来构建社交网络，该模型通过跟踪粒子在系统中存在期间的碰撞情况来实现。我们不仅再现了最近收集的大量经验性友谊网络数据库的度分布、聚类系数和最短路径长度，还再现了一些与其社区结构相关的特征。该模型完全由碰撞率表征，并且在高于临界碰撞率时，我们发现在二维渗流的普适类中出现了一个巨型簇。此外，我们提出了可能的方案来再现其他特定社会接触网络，即性接触网络。
