Balanced-imbalanced transitions in indirect reciprocity dynamics on networks
Balanced-imbalanced transitions in indirect reciprocity dynamics on networks
复制标题
网络间接互惠动态中的平衡-不平衡转变
DOI：
10.1103/physreve.104.024310
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发表时间：
2021
影响因子：
2.4
通讯作者：
and Takashi Shimada
中科院分区：
文献类型：
--
作者：
Koji Oishi;Shuhei Miyano;Kimmo Kaski;and Takashi Shimada
在这里，我们研究了网络上的间接互惠的动力学，这是一种社会动力学，在这种社会动力学中，个体对其他个体的态度，无论是合作的还是对抗的，随着时间的推移而变化，基于他们的行动和相互监控。当我们改变网络的链路密度或边密度时，我们观察到一个吸收态相变。当边缘密度足够小或足够大时，意见很快就会达到吸收状态，一旦达到这种状态，意见就不会再改变。相反，如果边缘密度在中间范围内，则没有达到吸收状态，并且状态不断变化，因此是活跃的。研究结果表明，社会网络对自发群体形成有一定的影响。
Here we investigate the dynamics of indirect reciprocity on networks, a type of social dynamics in which the attitude of individuals, either cooperative or antagonistic, toward other individuals changes over time based upon their actions and mutual monitoring. We observe an absorbing state phase transition as we change the network's link or edge density. When the edge density is either small or large enough, opinions quickly reach an absorbing state, from which opinions never change anymore once reached. In contrast, if the edge density is in the middle range, the absorbing state is not reached and the state keeps changing, thus being active. The result shows an effect of social networks on spontaneous group formation.