arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0903.2516cs.NE
收藏

度分布对进化搜索的影响

Effect of Degree Distribution on Evolutionary Search

Susan Khor

摘要:

提出了一种基于节点度表的层次模块化网络生成方法,并提出了一种基于边距离的网络模块化度量方法。生成的网络被用作测试问题,以探索模块化和度分布对进化算法性能的影响。实验结果(i)证实了先前的发现,即模块化增加了遗传算法在爬山者上的性能优势,(ii)支持了一个新的猜想,即具有重尾右偏度分布的模块化约束网络的测试问题比具有钟形正态度分布的模块化约束网络的测试问题更容易解决。

英文摘要:

This paper introduces a method to generate hierarchically modular networks with prescribed node degree list and proposes a metric to measure network modularity based on the notion of edge distance. The generated networks are used as test problems to explore the effect of modularity and degree distribution on evolutionary algorithm performance. Results from the experiments (i) confirm a previous finding that modularity increases the performance advantage of genetic algorithms over hill climbers, and (ii) support a new conjecture that test problems with modularized constraint networks having heavy-tailed right-skewed degree distributions are more easily solved than test problems with modularized constraint networks having bell-shaped normal degree distributions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑