Decision making can be difficult when there are many actors (or agents) who may be coordinating or competing to achieve their various ideas of the optimum outcome. Here I present a simple decision making model with an explicitly hierarchical binary-tree structure, and evaluate how this might cooperate to take actions that match its various evaluations of the uncertain state of the world. Key features of agent behaviour are (a) the separation of its decision making process into three distinct steps: observation, judgement, and action; and (b) the evolution of coordination by the sharing of judgements.

翻译：当多个行动者（或智能体）为了实现各自对最优结果的不同构想而协调或竞争时，决策可能会变得困难。本文提出了一个具有显式层级二叉树结构的简单决策模型，并评估了该模型如何通过协作采取行动，以匹配其对世界不确定状态的各种评估。智能体行为的关键特征包括：（a）将其决策过程分为三个不同步骤：观察、判断和行动；（b）通过判断共享实现协调的演化。