“…WTA problem also belongs to combinational optimization problem that is NP-hard. Several approaches to solve WTA problem have appeared such as genetic algorithm (GA) (Huai, Jian-Xin, & Chun-mei, 2008;Shoumeng, Xingshe, & Lingmin, 2005;Zhang, Fan, & Li, 2009), ant colony algorithm (ACO), particle swarm algorithm (PSA) (Wei & Wei, 2010) and so on, which can reduce the computational complexity and improve expected accumulated value. However, most of these approaches did not consider the mutual relation of the targets and the adversarial environment in battle.…”