<正>Dear editor,The fictitious play(FP) was initially proposed by Brown [1]in 1951 as a handy learning rule. The main idea of FP can be described as follows: In a game process, the player who adopts FP assumes that the others choose their strategies randomly and independently, according to a fixed distribution. Based on this assumption, the player tends to choose his or her own strategy empirically to counter the opponents and ultimately earn more benefits. Many distinguished studies have been springing up after the introduction of FP.
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