We present an extended version of the Iterated Prisoner’s Dilemma game in which agents with limited memory receive recommendations about the unknown opponents to decide whether to play with. Since agents can receive more than one recommendation about the same opponent, they have to evaluate the recommendations according to their disposition such as optimist, pessimist, or realist. They keep their first hand experience in their memory. Since agents have limited memory, they have to use different forgetting strategies. Our results show that getting recommendations does not always perform better. With the support of recommendation, cooperators can beat defectors. We observe that realist performs the best and optimist the worse.

中文翻译：

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在迭代囚徒困境中获得推荐并不总是更好

我们提出了迭代囚徒困境游戏的扩展版本，其中记忆有限的代理会收到关于未知对手的建议，以决定是否与他们一起玩。由于代理可以收到关于同一对手的多个推荐，因此他们必须根据自己的性格（例如乐观主义者、悲观主义者或现实主义者）来评估这些推荐。他们将他们的第一手经验留在他们的记忆中。由于智能体的记忆力有限，他们必须使用不同的遗忘策略。我们的结果表明，获得推荐并不总是表现得更好。在推荐的支持下，合作者可以击败叛逃者。我们观察到现实主义者表现最好，乐观主义者表现更差。