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A comparative study of efficient initialization methods for the k-means clustering algorithm

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Celebi, M. Emre, Kingravi, Hassan A., Vela, Patricio A.·2013·Expert Systems with Applications

Abstract

K-means is undoubtedly the most widely used partitional clustering algorithm. Unfortunately, due to its gradient descent nature, this algorithm is highly sensitive to the initial placement of the cluster centers. Numerous initialization methods have been proposed to address this problem. In this paper, we first present an overview of these methods with an emphasis on their computational efficiency. We then compare eight commonly used linear time complexity initialization methods on a large and diverse collection of data sets using various performance criteria. Finally, we analyze the experimental results using non-parametric statistical tests and provide recommendations for practitioners. We demonstrate that popular initialization methods often perform poorly and that there are in fact strong alternatives to these methods.

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Metadata

Authors
Celebi, M. E., Kingravi, H. A., & Vela, P. A.
Venue
Expert Systems with Applications
Publisher
Elsevier BV
Published
2013-01
Volume
40
Issue
1
Pages
200-210
ISSN
0957-4174 (ISSN-L)
OpenAlex
W2059515884
Cited by
1,214
References
6
FWCI
34.20
Type
journal article
Language
en
Open access
green

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Celebi, M. E., Kingravi, H. A., & Vela, P. A. (2013). A comparative study of efficient initialization methods for the k-means clustering algorithm. Expert Systems with Applications. https://doi.org/10.1016/j.eswa.2012.07.021

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