随机标签可以维持高异质性水平
Random tags can sustain high heterophily levels
摘要：
我们考虑一个空间模型的出现与同步出生和死亡的合作。智能体带有一个标签，通过玩囚徒困境游戏与邻居互动，策略取决于自己和对手的标签。代理人的收益决定了它复制和传递策略的机会。我们表明，当标签是随机分配的，而不是遗传，一个显着的异嗜性人口约40%的整体可以出现和持续。异性恋者背叛与他们有相同标签的特工，并与其他人合作。在我们的设置中，异质性的出现是由代理人的收益和邻居的收益之间的相关性来解释的。当标签被随机分配时，异质性优于同质性（与携带自己标签的代理合作，与其他代理叛逃），这使得后者的出现比以前认为的更有趣。
英文摘要：
We consider a spatial model of the emergence of cooperation with synchronous births and deaths. Agents bear a tag and interact with their neighbors by playing the prisoner's dilemma game with strategies depending on their own and opponent's tags. An agent's payoff determines its chances of reproducing and passing on its strategy. We show that when tags are assigned at random rather than inherited, a significant heterophilic population of about 40~\% of the whole can emerge and persist. Heterophilics defect on agents bearing the same tag as theirs and cooperate with others. In our setting, the emergence of heterophily is explained by the correlation between an agent's payoff and its neighbors' payoffs. The advantage of heterophily over homophily (cooperating with agents bearing one's tag and defecting with others) when tags are assigned at random makes the emergence of the later an even more interesting phenomenon than previously thought.
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。
