A weighted framework for unsupervised ensemble learning based on internal quality measures

Ramazan Ünlü () and Petros Xanthopoulos ()
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Ramazan Ünlü: University of Central Florida
Petros Xanthopoulos: Stetson University

Annals of Operations Research, 2019, vol. 276, issue 1, No 11, 229-247

Abstract: Abstract Unsupervised ensemble, or consensus clustering, consists in finding the optimal combination strategy of individual clusterings that is robust with respect to the selection of an algorithmic clustering pool. Recently an approach was proposed based on the concept of consensus graph that has profound advantages over its predecessors. Despite its robust properties this approach assigns the same weight to the contribution of each clustering to the final solution. In this paper, we propose a weighting policy for this problem that is based on internal clustering quality measures and compare against other popular approaches. Results on publicly available datasets show that weights can significantly improve the accuracy performance while retaining the robust properties.

Keywords: Consensus clustering; Unsupervised learning; Weighted consensus clustering; Graph partitioning (search for similar items in EconPapers)
Date: 2019
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DOI: 10.1007/s10479-017-2716-8

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