Evolution of cooperation in lattice population with adaptive interaction intensity

Evolution of cooperation in lattice population with adaptive interaction intensity
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具有自适应相互作用强度的格子群体合作演化

DOI:
10.1016/j.physa.2012.12.031
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发表时间:
2013-05
影响因子:
3.3
通讯作者:
Wang Long
Wang Long
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Li Zhi;Gao Jia;Il Hong Suh;Wang Long

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我们研究了具有适应性交互强度的个体之间的进化囚徒困境博弈。个体按照“收益增加-高强度,收益减少-低强度”的规则调整互动强度:如果一个人的收益较上一代增加,则他的互动强度增加;反之,则他的互动强度增加。否则,他会降低互动的概率。我们发现,如果个体能够在适当的范围内调整互动强度,就可以促进合作。有趣的是,互动强度低的个体通常占据合作者集群的边界。这种空间分布可以减轻合作者对合作者的剥削,因为合作者和叛逃者之间的互动被削弱。我们希望我们的工作能够对结构化人口中合作演变的研究产生一些见解。
We study the evolutionary Prisoner’s Dilemma game among individuals endowed with adaptively interaction intensity. Individuals adjust their interaction intensity according to the rules “payoff increase-high intensity, payoff decrease-low intensity”: if an individual’s payoff increases compared with that in the previous generation, he raises his interaction intensity; otherwise, he reduces the probability of interaction. We find that if individuals can adjust their interaction intensity with a proper scale, cooperation can be promoted. Interestingly, individuals with low interaction intensity usually hold the boundary of cooperator cluster. Such spatial distribution can alleviate the exploitation from defectors to cooperators since the interaction between cooperators and defectors is weakened. We hope our work can yield some insight into investigation of the evolution of cooperation in structured population.
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