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JACIII Vol.20 No.5 pp. 845-853
doi: 10.20965/jaciii.2016.p0845
(2016)

Paper:

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Comparison of Cluster Validity Measures Based x-Means

Yukihiro Hamasuna*, Naohiko Kinoshita**, and Yasunori Endo***

*Department of Informatics, School of Science and Engineering, Kindai University
3-4-1 Kowakae, Higashi-osaka, Osaka 577-8502, Japan

**Research Fellowship for Young Scientists, the Japan Society for the Promotion of Science (JSPS)
1-1-1 Tennodai, Tsukuba, Ibaraki 305-8573, Japan

***Faculty of Engineering, Information and Systems, University of Tsukuba
1-1-1 Tennodai, Tsukuba, Ibaraki 305-8573, Japan

Received:
September 18, 2015
Accepted:
August 2, 2016
Published:
September 20, 2016
Creative Commons License
Keywords:
cluster validity measures, x-means, determining the number of clusters, fuzzy partition
Abstract
The x-means determines the suitable number of clusters automatically by executing k-means recursively. The Bayesian Information Criterion is applied to evaluate a cluster partition in the x-means. A novel type of x-means clustering is proposed by introducing cluster validity measures that are used to evaluate the cluster partition and determine the number of clusters instead of the information criterion. The proposed x-means uses cluster validity measures in the evaluation step, and an estimation of the particular probabilistic model is therefore not required. The performances of a conventional x-means and the proposed method are compared for crisp and fuzzy partitions using eight datasets. The comparison shows that the proposed method obtains better results than the conventional method, and that the cluster validity measures for a fuzzy partition are effective in the proposed method.
Cite this article as:
Y. Hamasuna, N. Kinoshita, and Y. Endo, “Comparison of Cluster Validity Measures Based x-Means,” J. Adv. Comput. Intell. Intell. Inform., Vol.20 No.5, pp. 845-853, 2016.
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