SILHOUETTES - A GRAPHICAL AID TO THE INTERPRETATION AND VALIDATION OF CLUSTER-ANALYSIS
SILHOUETTES - A GRAPHICAL AID TO THE INTERPRETATION AND VALIDATION OF CLUSTER-ANALYSIS
复制标题
DOI：
10.1016/0377-0427(87)90125-7
复制
发表时间：
1987-11-01
影响因子：
2.4
通讯作者：
ROUSSEEUW, PJ
中科院分区：
文献类型：
--
作者：
ROUSSEEUW, PJ
提出了一种新的图形显示分区技术。每一个集群都由一个所谓的轮廓来表示，这是基于其紧密度和分离度的比较。这个轮廓显示了哪些对象位于它们的集群中，哪些对象只是在集群之间的某个地方。通过将轮廓组合到单个图中来显示整个聚类，从而可以了解聚类的相对质量和数据配置的概述。平均轮廓宽度提供了聚类有效性的评估，并且可以用于选择“适当”数量的聚类。
A new graphical display is proposed for partitioning techniques. Each cluster is represented by a so-calledsilhouette, which is based on the comparison of its tightness and separation. This silhouette shows which objects lie well within their cluster, and which ones are merely somewhere in between clusters. The entire clustering is displayed by combining the silhouettes into a single plot, allowing an appreciation of the relative quality of the clusters and an overview of the data configuration. The average silhouette width provides an evaluation of clustering validity, and might be used to select an ‘appropriate’ number of clusters.