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JACIII Vol.25 No.2 pp. 226-233
doi: 10.20965/jaciii.2021.p0226
(2021)

Paper:

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Jensen–Shannon Divergence-Based k-Medoids Clustering

Yuto Kingetsu* and Yukihiro Hamasuna**

*Graduate School of Science and Engineering, Kindai University
3-4-1 Kowakae, Higashiosaka, Osaka 577-8502, Japan

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

Received:
July 3, 2020
Accepted:
January 5, 2021
Published:
March 20, 2021
Creative Commons License
Keywords:
clustering, k-medoids, Jensen–Shannon divergence, kernel density estimation, cluster boundary
Abstract

Several conventional clustering methods use the squared L2-norm as the dissimilarity. The squared L2-norm is calculated from only the object coordinates and obtains a linear cluster boundary. To extract meaningful cluster partitions from a set of massive objects, it is necessary to obtain cluster partitions that consisting of complex cluster boundaries. In this study, a JS-divergence-based k-medoids (JSKMdd) is proposed. In the proposed method, JS-divergence, which is calculated from the object distribution, is considered as the dissimilarity. The object distribution is estimated from kernel density estimation to calculate the dissimilarity based on both the object coordinates and their neighbors. Numerical experiments were conducted using five artificial datasets to verify the effectiveness of the proposed method. In the numerical experiments, the proposed method was compared with the k-means clustering, k-medoids clustering, and spectral clustering. The results show that the proposed method yields better results in terms of clustering performance than other conventional methods.

Experimentally determined cluster boundary by the proposed method JSKMdd

Experimentally determined cluster boundary by the proposed method JSKMdd

Cite this article as:
Y. Kingetsu and Y. Hamasuna, “Jensen–Shannon Divergence-Based k-Medoids Clustering,” J. Adv. Comput. Intell. Intell. Inform., Vol.25 No.2, pp. 226-233, 2021.
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