Quantitative methods of standardization in cluster analysis
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Journal of Radioanalytical and Nuclear Chemistry
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The aim of this paper is to evaluate the impact of three standardization methods (z-score, log10
and improved min–max)
in determining the number of clusters for a dataset of 146 archaeological ceramic fragments in which mass fractions of
chemical elements were determined by INAA. The results showed a tendency towards clustering, which did not occur to
the non-standardized data. The standardization methods indicated the presence of three groups within the database. Quality
evaluation of these clusters, by means of internal validation indexes, showed that the best performance was obtained with
the log10
transformation. This transformation also performed well in the calculation of compactness, while the improved
min–max showed better performance in terms of separability.
Como referenciar
NOGUEIRA, ANDRE L.; MUNITA, CASIMIRO S. Quantitative methods of standardization in cluster analysis: finding groups in data. Journal of Radioanalytical and Nuclear Chemistry, v. 325, n. 3, p. 719-724, 2020. DOI: 10.1007/s10967-020-07186-6. Disponível em: http://repositorio.ipen.br/handle/123456789/31485. Acesso em: 20 Mar 2026.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.