学术翻译：AAA是群组A中玩家B的个体策略集群I内所有玩家的策略集合记做D而集群外所有玩家的策略集合被表示为F。

Academic translation: AAA represents the individual strategy of player B in group A, and the strategy set of all players within cluster I is denoted as D, while the strategy set of all players outside the cluster is represented as F.