Coevolutionary dynamics of opinions and networks: From diversity to uniformity
Coevolutionary dynamics of opinions and networks: From diversity to uniformity
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观点和网络的共同进化动态：从多样性到统一性
DOI：
10.1103/physreve.78.016104
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发表时间：
2008-07-01
影响因子：
2.4
通讯作者：
Wang, Long
中科院分区：
文献类型：
--
作者：
Fu, Feng;Wang, Long
我们研究了基于多数偏好(MP)和少数回避(MA)规则的意见和网络的共同进化动力学。在MP下，个人在他们的邻居中采用多数人的意见；而在MA中，个人可以断开与持有少数人和不同意见的人的链接，并重新连接到具有相同意见的邻居的邻居，或者重新连接到除最近邻居之外的整个群体中的随机人。我们研究意见形成作为这两个相互竞争的规则相结合的结果，并使用一个参数来调节它们之间的平衡。我们发现，潜在的网络可以自组织成相互连接的社区，志同道合的人属于同一组；因此，各种各样的观点共存。当模型参数超过一个临界值时，在所有人都有统一意见的群体中，不同的意见就消失了。此外，我们还表明，越来越多的人倾向于重定向到邻居的邻居，这更有可能导致意见的共识。
We investigate the coevolutionary dynamics of opinions and networks based upon majority-preference (MP) and minority-avoidance (MA) rules. Under MP, individuals adopt the majority opinion among their neighbors; while in MA individuals can break the link to one holding a minority and different opinion, and rewire either to neighbors of their neighbors with the same opinion or to a random one from the whole population except their nearest neighbors. We study opinion formation as a result of combination of these two competing rules, with a parameter tuning the balance between them. We find that the underlying network can be self-organized into connected communities with like-minded individuals belonging to the same group; thus a broad variety of opinions coexist. Diverse opinions disappear in a population in which all individuals share a uniform opinion, when the model parameter exceeds a critical value. Furthermore, we show that an increasing tendency to redirect to neighbors of neighbors is more likely to result in a consensus of opinion.