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基于细菌群体趋药性优化的k-means算法
K-means algorithm optimization based on bacterial colony chemotaxis
【摘要】 细菌趋药性算法是一种新的仿生进化算法,针对细菌趋药性算法,介绍了其基本原理,讨论了一种改进的算法——细菌群体趋药性(BCC)算法。将细菌群体趋药性优化方法应用在k-means聚类分析中,以类内离散度和为目标函数,建立了BCC优化的k-means算法模型,利用BCC算法的全局搜索能力,很大程度上避免了k-means算法易陷入局部极小的缺陷,同时也降低了算法对初始值的敏感度。并给出了一些实验,结果令人满意。
【Abstract】 Bacterial chemotaxis optimization is a novel category of bionic algorithm for optimization problems. Firstly, the basic principle of bacterial chemotaxis optimization is introduced, and then a improved method is discussed that is bacterial colony chemotaxis algorithm. Bacterial colony chemotaxis optimization algorithm is used in k-means clustering analysis. The modeling of k-means algorithm is established taking the sum with-in cluster scatter as the objective. Using the BCC algorithm global search capability, avoids the local minimum problems of k-means algorithm. At the same time, algorithm is no longer a large degree dependent on the initialization values numerical. Experimental results are satisfied.
【Key words】 bacterial chemotaxis algorithm; bacterial colony chemotaxis; k-means algorithm; clustering algorithm; sum with-in cluster scatter;
- 【文献出处】 计算机工程与设计 ,Computer Engineering and Design , 编辑部邮箱 ,2009年07期
- 【分类号】TP301.6
- 【被引频次】5
- 【下载频次】222