基于条件标签协作的无自匹配感知
Perception without Self-Matching in Conditional Tag Based Cooperation
摘要:
我们认为,在一个人口中,个人可能有一个不同的遗传和可区分的标记或标签的合作的演变模型。在一个正方形网格上,个体与每个邻居的互动方式是:要么合作,付出一些利益,让自己付出代价;要么背叛,什么都不做。合作或背叛的决定取决于每个个体对其互动伙伴标签的感知。与其他基于标签的模型不同,个体不会将自己的标签与其交互伙伴的标签进行比较。也就是说,不存在{ \em自匹配}。当感知是完美的合作率显着高于通常的空间囚徒困境游戏时,合作成本高。合作的增强与不同标签的数量正相关。一个群体的多样性越大,其合作性就越强。当个体开始无法感知标签时,群体进化到个体至少获得部分感知的状态。在某些复制机制中,完美的感知会进化,但在另一些复制机制中,感知标签的能力是不完美的。我们发现,标签的感知进化到较低的水平时,合作的成本较高。
英文摘要:
We consider a model for the evolution of cooperation in a population where individuals may have one of a number of different heritable and distinguishable markers or tags. Individuals interact with each of their neighbours on a square lattice by either cooperating by donating some benefit at a cost to themselves or defecting by doing nothing. The decision to cooperate or defect is contingent on each individual's perception of its interacting partner's tag. Unlike in other tag-based models individuals do not compare their own tag to that of their interaction partner. That is, there is no {\em self-matching}. When perception is perfect the cooperation rate is substantially higher than in the usual spatial prisoner's dilemma game when the cost of cooperation is high. The enhancement in cooperation is positively correlated with the number of different tags. The more diverse a population is the more cooperative it becomes. When individuals start with an inability to perceive tags the population evolves to a state where individuals gain at least partial perception. With some reproduction mechanisms perfect perception evolves, but with others the ability to perceive tags is imperfect. We find that perception of tags evolves to lower levels when the cost of cooperation is higher.
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