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2014 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) 2014
DOI: 10.1109/icassp.2014.6854165
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Sparse adaptive possibilistic clustering

Abstract: In this paper a new sparse adaptive possibilistic clustering algorithm is presented. The algorithm exhibits high immunity to outliers and provides improved estimates of the cluster representatives by adjusting dynamically certain critical parameters. In addition, the proposed scheme manages -in principle -to estimate the actual number of clusters and by properly imposing sparsity, it becomes capable to deal well with closely located clusters of different densities. Extensive experimental results verify the pre… Show more

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Cited by 6 publications
(3 citation statements)
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References 18 publications
(23 reference statements)
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“…This is carried out via the 2 A preliminary version of SAPCM is presented in [16]. minimization of the following objective function [6] 3 :…”
Section: A Brief Review Of Pcm Algorithmmentioning
confidence: 99%
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“…This is carried out via the 2 A preliminary version of SAPCM is presented in [16]. minimization of the following objective function [6] 3 :…”
Section: A Brief Review Of Pcm Algorithmmentioning
confidence: 99%
“…Such an extension gives rise to the so called Sparse Adaptive PCM (SAPCM) algorithm 2 . A consequence of this parameter adjustment is that, given an overestimate of the true number of clusters, the algorithm has (in principle) the ability to reduce it gradually towards the true number of 2 A preliminary version of SAPCM is presented in [16].…”
mentioning
confidence: 99%
“…The second contribution of the thesis concerns the exploitation of sparsity in the clustering framework. To this end, two novel sparsity-promoting possibilistic clustering algorithms are proposed [55], [56]. The main idea here is that a data point may be compatible with one or only a few (or even none) clusters.…”
Section: Thesis Contributionmentioning
confidence: 99%