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
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通讯作者:
G. Carlsson;F. Mémoli
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文献类型:
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作者:
G. Carlsson;F. Mémoli
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.