arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1002.3282physics.soc-phcs.GTphysics.comp-phq-bio.PE
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有向小世界网络上自我质疑和噪声条件下雪堆博弈的合作

Cooperation in the snowdrift game on directed small-world networks under self-questioning and noisy conditions

Tian Qiu, Tarik Hadzibeganovic, Guang Chen, Li-Xin Zhong, Xiao-Run Wu

摘要:

研究了退火淬火有向耦合小世界网络中具有自我质疑更新机制的雪堆进化博弈中的合作问题。围绕支付参数值$r=0.5$,我们发现了一个大小不变的对称合作效应。虽然一般抑制合作的$r>0.5$回报,重新布线的网络促进合作行为的$r<0.5$。相当数量的噪声被发现打破所观察到的对称性,并进一步削弱合作在相对较大的值$r$。然而,在没有噪音的情况下,即使在大奖励条件下,自我质疑机制也能恢复对称行为并提高利他主义。我们的研究结果表明,这种类型的更新机制是必要的,以稳定在空间结构化的环境中的合作,否则不利于合作行为,特别是在高成本效益比。此外,我们采用组件和局部稳定性分析,以更好地了解所表现的动态的性质。

英文摘要:

Cooperation in the evolutionary snowdrift game with a self-questioning updating mechanism is studied on annealed and quenched small-world networks with directed couplings. Around the payoff parameter value $r=0.5$, we find a size-invariant symmetrical cooperation effect. While generally suppressing cooperation for $r>0.5$ payoffs, rewired networks facilitated cooperative behavior for $r<0.5$. Fair amounts of noise were found to break the observed symmetry and further weaken cooperation at relatively large values of $r$. However, in the absence of noise, the self-questioning mechanism recovers symmetrical behavior and elevates altruism even under large-reward conditions. Our results suggest that an updating mechanism of this type is necessary to stabilize cooperation in a spatially structured environment which is otherwise detrimental to cooperative behavior, especially at high cost-to-benefit ratios. Additionally, we employ component and local stability analyses to better understand the nature of the manifested dynamics.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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