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Clustering procedures allowing for general covariance structures of the obtained clusters need some constraints on the … restriction on the “eigenvalues-ratio” of the clusters scatter matrices. In order to try to achieve robustness with respect to …
Persistent link: https://www.econbiz.de/10010994276
solutions to this problem and are effective in higher dimensions. We use mixture model-based clustering applications to …
Persistent link: https://www.econbiz.de/10010846120
Gaussian and t-distribution analogues, mixtures of skew-t factor analyzers are very well-suited for model-based clustering of … data, giving superior clustering results when compared to a well-established family of Gaussian mixture models. …
Persistent link: https://www.econbiz.de/10010871318
Persistent link: https://www.econbiz.de/10012496481
The performance (accuracy and robustness) of several clustering algorithms is studied for linearly dependent random … posteriori criterion to choose between two discordant clustering algorithm is presented. …
Persistent link: https://www.econbiz.de/10010589295
A new algorithm for clustering life course trajectories is presented and tested with large register data. Life courses … clustering result for this kind of data provides interesting subgroups with similar life course trajectories. The high sampling … information. The new algorithm deals with this problem by simultaneously clustering and identifying critical junctures for each of …
Persistent link: https://www.econbiz.de/10010304330
Expectation Maximization (EM) is a widely employed mixture model-based data clustering algorithm and produces … clustering algorithms. This paper presents an algorithm for the novel hybridization of EM and K-Means techniques for achieving … better clustering performance (NovHbEMKM). This algorithm first performs K-Means and then using these results it performs EM …
Persistent link: https://www.econbiz.de/10012042641
authors propose a Mobility Aware Clustering Scheme (MACS), which organizes the IoT devices in clusters using a fitness …
Persistent link: https://www.econbiz.de/10012042684
one, this technique was designed to solve combinatorial optimization problems, and by embedding a clustering algorithm …
Persistent link: https://www.econbiz.de/10012042726
The main goal of this paper is to compare the motif information extracted from clusters and biclusters of the protein using Motif Comparator. The clusters and biclusters are obtained using the PSO k-means algorithm. The functions of the proteins are preferably found from their motif information....
Persistent link: https://www.econbiz.de/10012042934