V2EX dendrogram

Dendrogram

释义 Definition

dendrogram(名词):树状图;聚类树。一种用“树”的分叉结构来表示对象之间相似度/距离关系的图,常用于层次聚类(hierarchical clustering),展示数据如何逐步合并成不同层级的簇。(在生物学中也可指类似的系统关系树状表示。)

发音 Pronunciation (IPA)

/dendrrm/

例句 Examples

We used a dendrogram to see how the samples cluster.
我们用树状图来观察这些样本如何聚类。

After running hierarchical clustering, the dendrogram showed that the two departments were more similar to each other than to the rest of the company.
在进行层次聚类之后,树状图显示这两个部门彼此更相似,而与公司其他部门的相似度较低。

词源 Etymology

来自希腊语词根 **dendro-**(“树”)+ -gram(“图、记录”)。字面意思就是“树的图示”,形象地对应它用分枝结构呈现关系的方式。

相关词 Related Words

文学与著作中的用例 Literary Works

  • Pattern Recognition and Machine Learning(Christopher M. Bishop)在讲解聚类与概率模型的相关章节中常会提到层次聚类及其可视化(包括 dendrogram)。
  • The Elements of Statistical Learning(Hastie, Tibshirani, Friedman)讨论无监督学习与聚类方法时,常使用 dendrogram 来展示层次聚类结果。
  • An Introduction to Statistical Learning(James, Witten, Hastie, Tibshirani)在介绍聚类与数据可视化的语境中会出现 dendrogram(尤其与层次聚类配套)。
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