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  Pruning nearest neighbor cluster trees

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

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externe Referenz:
http://www.icml-2011.org/ (Inhaltsverzeichnis)
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Urheber

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 Urheber:
Kpotufe, S1, Autor           
von Luxburg, U1, Autor           
Affiliations:
1Dept. Empirical Inference, Max Planck Institute for Intelligent Systems, Max Planck Society, DE, ou_1497647              

Inhalt

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Schlagwörter: -
 Zusammenfassung: 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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 Datum: 2011-07
 Publikationsstatus: Erschienen
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 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
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 Identifikatoren: BibTex Citekey: Kpotufev2011
 Art des Abschluß: -

Veranstaltung

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Titel: 28th International Conference on Machine Learning (ICML 2011)
Veranstaltungsort: Bellevue, WA, USA
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Entscheidung

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Quelle 1

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Titel: 28th International Conference on Machine Learning (ICML 2011)
Genre der Quelle: Konferenzband
 Urheber:
Getoor, L, Herausgeber
Scheffer, T, Herausgeber
Affiliations:
-
Ort, Verlag, Ausgabe: Madison, WI, USA : International Machine Learning Society
Seiten: - Band / Heft: - Artikelnummer: - Start- / Endseite: 225 - 232 Identifikator: ISBN: 978-1-450-30619-5