Title
Initialization Dependence of Clustering Algorithms
Abstract
It is well known that the clusters produced by a clustering algorithm depend on the chosen initial centers. In this paper we present a measure for the degree to which a given clustering algorithm depends on the choice of initial centers, for a given data set. This measure is calculated for four well-known offline clustering algorithms (k-means Forgy, k-means Hartigan, k-means Lloyd and fuzzy c-means), for five benchmark data sets. The measure is also calculated for ECM, an online algorithm that does not require the number of initial centers as input, but for which the resulting clusters can depend on the order that the input arrives. Our main finding is that this initialization dependence measure can also be used to determine the optimal number of clusters.
Year
DOI
Venue
2008
10.1007/978-3-642-03040-6_75
ICONIP
Keywords
DocType
Volume
k means,online algorithm
Conference
5507
ISSN
Citations 
PageRank 
0302-9743
1
0.37
References 
Authors
7
4
Name
Order
Citations
PageRank
Wim De Mulder110.37
Stefan Schliebs238018.56
René Boel3565.58
Martin Kuiper452132.47