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A divisive clustering method for functional data with special consideration of outliers
(Springer, 2017-08)
This paper presents DivClusFD, a new divisive hierarchical method for the non-supervised classification of functional data. Data of this type present the peculiarity that the differences among clusters may be caused by ...
ClusMAM: fast and effective unsupervised clustering of large complex datasets using metric access methods
(Association for Computing Machinery - ACMUniversity of PisaScuola Superiore Sant’AnnaPisa, 2016-04)
An efficient and effective clustering process is a core task of data mining analysis, and has become more important in the nowadays scenario of big data, where scalability is an issue. In this paper we present the ClusMAM ...
Labeling association rule clustering through a genetic algorithm approach
(2014-01-01)
Among the post-processing association rule approaches, a promising one is clustering. When an association rule set is clustered, the user is provided with an improved presentation of the mined patterns, since he can have ...
Diagnostic tool to analyse colour-magnitude diagrams of poorly populated stellar concentrations
(WILEY-BLACKWELL, 2011)
The dynamical processes that lead to open cluster disruption cause its mass to decrease. To investigate such processes from the observational point of view, it is important to identify open cluster remnants (OCRs), which ...
How Many Clusters: A Validation Index for Arbitrary-Shaped Clusters
(IEEE Computer Society, 2013-04)
Clustering validation indexes are intended to assess the goodness of clustering results. Many methods used to estimate the number of clusters rely on a validation index as a key element to find the correct answer. This paper ...
Tidal stripping of globular clusters in a simulated galaxy cluster
(IOP Publishing, 2015-06)
Using a cosmological N-body numerical simulation of the formation of a galaxy-cluster-sized halo, we analyze the temporal evolution of its globular cluster population. We follow the dynamical evolution of 38 galactic dark ...
Caracterização e classificação do cluster de calçados femininos do município de Jaú/SP.
(Universidade Federal de São CarlosBRUFSCarPrograma de Pós-Graduação em Engenharia de Produção - PPGEP, 2004-12-22)
The research aimed to assist the local leaderships with informational subsidies
for the working out of actions in the conduction of the development s process in cluster
of footwear from Jaú based on the methods to characterize ...
Different sodium enhancements among multiple populations of Milky Way globular clusters
(EDP Sciences, 2020-11)
We searched for clues to understand the different Na abundances measured in first and second generation stars of ancient Milky Way globular clusters. For that purpose, from the recent literature, we gathered the aforementioned ...