摘要
萤火虫算法是一种新型的进化算法,虽然全局寻优能力较强,但是也存在后期收敛速度慢、易于早熟、求解精度低的缺陷。为了克服以上缺陷,利用混沌序列设计了两种新颖的混沌局部搜索算子,第一种混沌局部搜索算子针对种群中最优解进行局部搜索,第二种混沌局部搜索算子针对种群中较优解进行局部搜索,在此基础上进而提出了两种改进混沌萤火虫算法,并进行了一系列比较研究。仿真结果表明,两种改进算法均显著优于基本FA算法,与其它改进萤火虫算法相比也具有一定优势,是目前最优秀的改进萤火虫算法之一。
Firefly algorithm, is a novel evolutionary algorithm with the shortcomings of low convergence speed, easily falling into local optima and lower solution accuracy. A local search operator was designed based on chaos se- quences in the paper. Then, two novel improved chaotic firefly algorithms were proposed. Simulation results show that both improved algorithms are significantly better than those of FA algorithm, and IFA2 is one of the best im- proved firefly algorithms. Large amount utility of digital data brings about many maladies for the multimedia information's security.
出处
《计算机仿真》
CSCD
北大核心
2014年第10期306-312,共7页
Computer Simulation
基金
国家自然科学基金面上项目(71272241)
河南省教育厅项目(14A630029
13B520878)
河南省科技厅软科学项目(132400410059)
郑州市科技攻关项目(编号20120431)
关键词
萤火虫算法
进化算法
优化
Firefly algorithm(FA)
Evolution algorithm
Optimization