Improved Perron cluster analysis:

Abstract: "The problem of clustering data can often be transformed into the problem of finding a hidden block diagonal structure in a stochastic matrix. Deuflhard et al. [9] have proposed an algorithm that states the number k of clusters and uses the sign structure of k eigenvectors of the stoc...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
1. Verfasser: Weber, Marcus 1972- (VerfasserIn)
Format: Buch
Sprache:English
Veröffentlicht: Berlin Konrad-Zuse-Zentrum für Informationstechnik 2003
Schriftenreihe:ZIB-Report 2003,04
Schlagworte:
Zusammenfassung:Abstract: "The problem of clustering data can often be transformed into the problem of finding a hidden block diagonal structure in a stochastic matrix. Deuflhard et al. [9] have proposed an algorithm that states the number k of clusters and uses the sign structure of k eigenvectors of the stochastic matrix to solve the cluster problem. Recently Weber and Galliat [8] discovered that this system of eigenvectors can easily be transformed into a system of k membership functions or soft characteristic functions describing the clusters. In this article we explain the corresponding cluster algorithm and point out the underlying theory. By means of numerical examples we explain how the grade of membership can be interpreted."
Beschreibung:9 S. 1 Ill., graph. Darst.

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