Journal
APPLIED SOFT COMPUTING
Volume 82, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.asoc.2019.105536
Keywords
Soft clustering; Three-way; Rough k-means
Categories
Funding
- National Key R&D Program of China [2017YFB1401300, 2017YFB1401303]
- program of China Scholarship Council [201606775044]
- Fundamental Research Funds for the Central University, China [CCNU19QN027, CCNU19ZN005]
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Rough k-means (RKM) is an effective algorithm to deal with uncertain boundary clustering, and it has a variety of extensions since appeared. In RKM and its extensions, data points are coupled with empirical weights to calculate means of clusters, whereas the empirical weights could not necessarily be accurate in all scenarios. In this paper, we propose a three-way weight for each data point according to its inherent characteristics, which can make the weight more accurate. Next, we propose a three-way assignment to assign data points into clusters. By integrating the three-way weight and three-way assignment, we propose a three-way c-means algorithm. Furthermore, in order to validate the effectiveness and efficiency of the proposed algorithm, we compare it with three representative algorithms in the field of RKM, and the proposed algorithm shows the superior performances on certain criteria and statistical measures. (C) 2019 Elsevier B.V. All rights reserved.
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