A co-evolutionary model combined mixed-strategy and network adaptation by severing disassortative neighbors promotes cooperation in prisoner's dilemma games

Kohei Miyaji, Jun Tanimoto

研究成果: ジャーナルへの寄稿学術誌査読

2 被引用数 (Scopus)

抄録

A co-evolutionary model of both network and mixed strategy is proposed in this study. The assigned strategy si of agent i is defined by a real number ranging from 0 to 1, which probabilistically ordains a subsequent action of either cooperation or defection as the agent's offer. We assume a network dynamic to support or hamper the enhancement of cooperation, where an agent severs a link with the neighbor who has the most disassortative strategy. This means that an agent tends to maintain interactions only with neighbors that resemble the agent. A series of numerical simulations reveal that our “assortative grouping” framework enhances cooperation. Interestingly, when a low network adaptation speed and a certain degree of strategy copy error are presumed, phenomenal network heterogeneity evolves, one that realizes more significant cooperation as compared to error-free cases.

本文言語英語
論文番号110603
ジャーナルChaos, solitons and fractals
143
DOI
出版ステータス出版済み - 2月 2021

All Science Journal Classification (ASJC) codes

  • 統計物理学および非線形物理学
  • 数学 (全般)
  • 物理学および天文学(全般)
  • 応用数学

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