Characterization, Stability and Convergence of Hierarchical Clustering Methods

Characterization, Stability and Convergence of Hierarchical Clustering Methods
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DOI:
10.5555/1756006.1859898
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发表时间:
2010-03
期刊:
J. Mach. Learn. Res.
影响因子:
--
通讯作者:
G. Carlsson;F. Mémoli
G. Carlsson;F. Mémoli
中科院分区:
其他
文献类型:
--
作者:
G. Carlsson;F. Mémoli

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我们研究层次聚类方案下的公理视图。我们表明,在这个框架内,可以证明一个定理类似于Kleinberg(2002),其中一个获得的存在性和唯一性定理,而不是不存在的结果。我们进一步探讨这个独特的计划:稳定性和收敛性。我们将树状图表示为超度量空间,并使用度量几何中的工具,即Gromov-Hausdorff距离,来量化输入度量空间中的扰动对分层方法结果的影响程度。
We study hierarchical clustering schemes under an axiomatic view. We show that within this framework, one can prove a theorem analogous to one of Kleinberg (2002), in which one obtains an existence and uniqueness theorem instead of a non-existence result. We explore further properties of this unique scheme: stability and convergence are established. We represent dendrograms as ultrametric spaces and use tools from metric geometry, namely the Gromov-Hausdorff distance, to quantify the degree to which perturbations in the input metric space affect the result of hierarchical methods.