Spatial order prevails over memory in boosting cooperation in the iterated prisoner's dilemma.
Spatial order prevails over memory in boosting cooperation in the iterated prisoner's dilemma.
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DOI：
10.1063/1.3106322
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发表时间：
2009-04
期刊：
影响因子：
2.9
通讯作者：
R. Alonso-Sanz
中科院分区：
文献类型：
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作者：
R. Alonso-Sanz
本文提出了迭代囚徒困境的空间版本的一些结果，其中每个玩家在任何迭代中都会模仿其邻居的最优策略。邻居是用基于方格的不同程度的随机变化（初始重新布线）来定义的，最优是用不同程度的记忆来定义的，范围从仅单个先前迭代到所有先前迭代。结论是，在有序格子中重复的囚徒困境中，记忆显着地刺激了合作，但随着布线网络变得高度无序，它无法促进合作。
This paper presents some results on a spatial version of the iterated prisoner's dilemma in which every player imitates in any iteration the optimal strategy of its neighbors. Neighbors are defined with different degrees of random variation (initial rewiring) based on a square lattice, and optimal is defined with different degrees of memory, ranging from only the single preceding iteration up to all preceding iterations. It is concluded that memory notably stimulates cooperation in the iterated prisoner's dilemma played in ordered lattices, but it is unable to boost cooperation as the wiring network becomes highly disordered.