摘要
基于遗传算法的基本原理 ,提出一种改进的遗传算法 ,把小生境技术和记忆器引入遗传算法 ,来保护种群的多样性 ,同时使每代最优解得到保留。把改进的遗传算法应用到求解土坡稳定的可靠度指标中 ,克服了传统方法易陷入局部极值的缺点。对于功能函数的非线性 ,避免了求导或近似展开而产生的误差。
Based on the simple genetic algorithm,an improved genetic algorithm(IGA)is presented,in which the niche technology and memory are introduced so that the population diversity is maintained and the optimal solution is reserved.IGA is applied to the solution of the reliability index in the slope stability and the disadvantage of traditional method,which often gains local extreme value,is prevented.The nonlinearity of the performance function reduces the errors because of the derivation and the approximate expansion.
出处
《港工技术》
北大核心
2003年第3期20-23,共4页
Port Engineering Technology
基金
国家自然科学基金委高性能计算机基金资助项目(9810 0 5 )
