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而除集群I外所有玩家的策略集合被表示为F。

The academic translation of the provided sentence is as follows:

"AAA is the individual strategy of player B in group A, and the collection of strategies of all players within cluster I is denoted as D, while the collection of strategies of all players outside cluster I is represented as F."