2) bacterial species diversity
细菌种类多样性
3) The flora and species diversity of tree layer
乔木层组成和物种多样性
4) population diversity
种群多样性
1.
Genetic algorithm based on instructing by population diversity;
基于种群多样性指导的遗传算法
2.
To overcome premature searching by standard particle swarm optimization(PSO)algorithm for the great loss of population diversity,a novel adaptive PSO is proposed,which can dynamically change inertia weight coefficients by the measure of population diversity.
针对标准粒子群算法在进化过程中种群多样性降低而早熟的问题,提出了一种根据种群多样性测度动态改变惯性权重系数的自适应粒子群算法,该算法能够平衡算法的全局探索和局部开发能力,不仅有效地避免早熟,而且具有较快的收敛速度。
3.
Focusing on the problems existed in some adaptive genetic algorithms that cannot take acc ount of population features and are difficult to converge to optimal solution s tead ily, the reasons of stopping evolution or degeneration are analyzed in view of f itness average and population diversity.
针对现有自适应遗传算法无法兼顾群体特性 ,难以稳定地收敛到最优解的问题 ,从种群多样性和适应度均值变化的角度 ,分析了进化停滞或退化的原因 。
5) Diversity
[英][daɪ'vɜ:səti] [美][daɪ'vɝsətɪ]
物种多样性
1.
A study on composition structure and species diversity in ecotones between forest and swamp;
森林-沼泽交错群落组成结构与物种多样性的研究
2.
A review on the elevational patterns of plant species diversity;
植物物种多样性的垂直分布格局
3.
Research on brid diversity in the Weihe Plain, Shaanxi;
陕西渭河平原地区鸟类物种多样性研究
6) diversity of population
种群多样性
1.
Based on the variance of fitness value, an index that can reflect the diversity of population in genetic algorithm is defined.
根据适应度的方差,定义了一种度量种群多样性的指标。
2.
A new index which can reflect the diversity of population in genetic algorithms, is defined in this paper and used to adjust the probabilities of crossover and mutation.
提出了一种度量种群多样性的新指标 ,将其应用于交叉概率和变异概率两个参数的自适应调整 ,再将自适应的思想和并行计算的思想结合起来 ,提出了一种在个人计算机上实现的改进自适应遗传算法 -自适应伪并行遗传算法(APPGA) 。
3.
We designed a migration operator and crossover operator based on diversity of population functions,and made dynamic adjustments on crossover and mutation probabilities.
为了改善遗传算法的收敛性能,提出了一种基于个体适应度的种群多样性度量函数,恰当地反映了遗传算法的进化阶段,预报了早熟收敛的趋势。
补充资料：多样性
多样性：指人们彼此具有各种不同的特征。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条