Fig. 3From: Achieving large and distant ancestral genome inference by using an improved discrete quantum-behaved particle swarm optimization algorithmThe procedure of updating mbest by adopting two averages of the fitness value. The left figure a represents the distance to the first average fitness value among all the particles, and \(X_2\) is selected as cbest because it is the closest distance to the first average fitness value. The right figure b represents the distance to the second average fitness value among the top \(50\%\) particles, and \(X_1\) is selected as mbest because it is the closest distance to the second average fitness valueBack to article page