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  Pruning nearest neighbor cluster trees

Kpotufe, S., & von Luxburg, U. (2011). Pruning nearest neighbor cluster trees. In 28th International Conference on Machine Learning (ICML 2011) (pp. 225-232). Madison, WI, USA: International Machine Learning Society.

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資料種別: 会議論文

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 作成者:
Kpotufe, S1, 著者           
von Luxburg, U1, 著者           
Getoor T. Scheffer, L., 編集者
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1Department Empirical Inference, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497795              

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 要旨: Nearest neighbor (k-NN) graphs are widely used in machine learning and data mining applications, and our aim is to better understand what they reveal about the cluster structure of the unknown underlying distribution of points. Moreover, is it possible to identify spurious structures that might arise due to sampling variability? Our first contribution is a statistical analysis that reveals how certain subgraphs of a k-NN graph form a consistent estimator of the cluster tree of the underlying distribution of points. Our second and perhaps most important contribution is the following finite sample guarantee. We carefully work out the tradeoff between aggressive and conservative pruning and are able to guarantee the removal of all spurious cluster structures while at the same time guaranteeing the recovery of salient clusters. This is the first such finite sample result in the context of clustering.

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 日付: 2011-07
 出版の状態: 出版
 ページ: -
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 識別子(DOI, ISBNなど): ISBN: 978-1-450-30619-5
URI: http://www.icml-2011.org/
BibTex参照ID: Kpotufev2011
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イベント名: 28th International Conference on Machine Learning (ICML 2011)
開催地: Bellevue, WA, USA
開始日・終了日: -

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出版物名: 28th International Conference on Machine Learning (ICML 2011)
種別: 会議論文集
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出版社, 出版地: Madison, WI, USA : International Machine Learning Society
ページ: - 巻号: - 通巻号: - 開始・終了ページ: 225 - 232 識別子(ISBN, ISSN, DOIなど): -