Cluster validity index is used to scale the validity of clustering, and determine the number of clusters.

聚类有效性指标既可用来评价聚类结果的有效性，也可以用来确定最佳聚类数。

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Sometimes, the definition of similarity in the clustering algorithm is not consistent with that in the cluster validity index, so that the value of index is useless in this case.

聚类算法与聚类评价指标所采取的相似性定义往往并不一致，这就导致了在某种意义下聚类评价指标的无用性。

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One model is fuzzy cluster analysis of gene expression data based on a cluster validity measure named Xie-Beni index.

一种模型是基于有效性测度谢白尼指数的基因表达数据的模糊聚类分析。

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