Hedonic games formalize coalition formation scenarios where players evaluate an outcome based on the coalition they are contained in. Due to a large number of possible coalitions, compact representations of these games are crucial. We complement known compact representation models by a distance-based approach: Players' preferences are encoded in a bipolar manner by ordinal preferences over a small set of known neighbouring players, coalitions are represented by adequate preference orders from a player's perspective, and preferences over coalitions are extended based on a directed form of Hausdorff-Kendall-tau distance between individual preferences and coalitions. We show that this model satisfies desirable axiomatic properties and has reasonable computational complexity in terms of selected individual-based stability notions.
翻译:混合游戏将联盟形成情景正式化, 由球员根据它们所包括的联盟来评估其结果。 由于众多可能的联盟, 这些游戏的缩写十分关键。 我们以远程方式补充已知的缩略语模式: 玩家的偏好通过对少数已知的相邻球员的两极性偏好以两极化的方式编码, 从玩家的角度看, 联盟有适当的偏爱命令代表, 并且根据个人偏好和联盟之间的直接距离形式, 扩大对联盟的偏爱。 我们表明, 这个模式满足了可取的不言理特性, 并且在某些以个人为基础的稳定概念上具有合理的计算复杂性 。