Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.3/2706
Título: A global Approach to the Comparison of Clustering Results
Autor: Silva, Osvaldo
Bacelar-Nicolau, Helena
Nicolau, Fernando C.
Palavras-chave: Cluster Analysis
VL Methodology
Affinity Coefficient
Comparing Partitions
Cluster Stability
Cluster Validation
Data: 2012
Editora: Walter de Gruyter
Citação: Silva, Osvaldo; Bacelar-Nicolau, Helena; Nicolau, Fernando, C. (2012). "A global Approach to the Comparison of Clustering Results", Biometrical Letters, 49(2), 135-147. ISSN (Print) 1896-3811, DOI: 10.2478/bile-2013-0010.
Resumo: The discovery of knowledge in the case of Hierarchical Cluster Analysis (HCA) depends on many factors, such as the clustering algorithms applied and the strategies developed in the initialstage of Cluster Analysis. We present a global approach for evaluating the quality of clustering results and making a comparison among different clustering algorithms using the relevant information available (e.g. the stability, isolation and homogeneity of the clusters). In addition, we present a visual method to facilitate evaluation of the quality of the partitions, allowing identification of the similarities and differences between partitions, as well as the behaviour of the elements in the partitions. We illustrate our approach using a complex and heterogeneous dataset (real horse data) taken from the literature. We apply HCA based on the generalized affinity coefficient (similarity coefficient) to the case of complex data (symbolic data), combined with 26 (classic and probabilistic) clustering algorithms. Finally, we discuss the obtained results and the contribution of this approach to gaining better knowledge of the structure of data.
Descrição: Copyright © 2012 Walter de Gruyter GmbH.
Peer review: yes
URI: http://hdl.handle.net/10400.3/2706
ISSN: 1896-3811 (Print)
Versão do Editor: http://www.degruyter.com/view/j/bile.2012.49.issue-2/bile-2013-0010/bile-2013-0010.xml
Aparece nas colecções:DME - Artigos em Revistas Internacionais / Articles in International Journals

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