一种实用的类电磁机制算法  

Practical electromagnetism-like mechanism algorithm

作　　者：姜建国[1] 王双记[1,2] 刘永青[1] 尚海豹[1] 朱溢能[1] 

机构地区：[1]西安电子科技大学计算机学院 [2]中国人民解放军91388部队

出　　处：《西安电子科技大学学报》2013年第2期48-53,共6页Journal of Xidian University

基　　金：国家部委基础科研计划资助项目(D1120060967)

摘　　要：分析了类电磁机制算法的函数优化原理,针对原算法中存在的运算量大、收敛速度慢、合力计算公式病态性等问题,提出了一种新的实用的类电磁机制算法.采用归一化目标函数值方法,简化了电量计算公式;引入合力计算修正因子,消除了合力计算公式的病态性,削弱了距离因素对种群粒子受力的影响,加快了收敛速度.实验证明,改进后的算法具有更好的收敛效果和更高的执行效率.The function optimization principle of the original Electromagnetism-like mechanism （EM） algorithm and some problems of it are analyzed, such as large computation, low convergence rate, and pathological feature in the total force formula. A new pratical EM algorithm is proposed according to the problems above. The power formula is simplified by adopting the method for normalizing the objective function value. The correction factor is introduced into the total force formula, so that the pathological feature in the total force formula is eliminated, the impact of the distance factor on the force between population particles weakened, and the convergence rate increased. Experiments show that the improved algorithm has a faster convergence speed and higher solution accuracy.

关 键 词：类电磁机制算法 函数优化 修正因子 

分 类 号：TP301.6[自动化与计算机技术—计算机系统结构]