选择题：Inspired by social behavior of birds and fishes, Particle Sw

Inspired by social behavior of birds and fishes, Particle Swarm Optimization (PSO) algorithm uses a number of （） that constitute a swarm moving around in the search space looking for the best solution.受鸟类和鱼类的社会行为的启发，粒子群优化算法采用若干（）构成一个围绕搜索空间移动的群体来寻找最优解。