CAJ | 학술논문

在PSO中引入反向学习策略（Opposite-Based Learning ）可使粒子在搜寻过程中总能找到当前解的反向位置，增加了接近全局最优解的机会。然而，OBL仅在演化初期作用显著，在演化后期则需通过变异等手段来提高其“开发”能力。针对该问题，基于透镜成像原理，引入缩放因子和搜索半径两个可调参数进一步平衡了算法的“探索”和“开发”能力。实验表明该策略能够提高种群多样性和收敛性能。
재PSO중인입반향학습책략（Opposite-Based Learning ）가사입자재수심과정중총능조도당전해적반향위치，증가료접근전국최우해적궤회。연이，OBL부재연화초기작용현저，재연화후기칙수통과변이등수단래제고기“개발”능력。침대해문제，기우투경성상원리，인입축방인자화수색반경량개가조삼수진일보평형료산법적“탐색”화“개발”능력。실험표명해책략능구제고충군다양성화수렴성능。
By introducing opposition-based learning (OBL) in PSO ,particles are enabled to find an opposite position that is closer to the global optimization solution .However ,OBL only makes a good performance on the initial phrase of the evolution , while at later stages it needs to be combined with other techniques (e .g .Cauchy mutation ) to improve its ability of“exploration” . In this paper ,a novel OBL based on the principle of lens imaging is proposed .It uses two parameters (i .e .,zoom factor and the factor of search radius ) ,which will achieve a better balance between PSO’s“exploration”and“exploitation”abilities .The simula-tion shows that the novel OBL possesses better convergence rate and convergence effect .