Validity studies among hierarchical methods of cluster analysis using cophenetic correlation coefficient

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dc.contributor.authorCARVALHO, P.R.pt_BR
dc.contributor.authorMUNITA, C.S.pt_BR
dc.contributor.authorLAPOLLI, A.L.pt_BR
dc.coverageNacionalpt_BR
dc.date.accessioned2019-08-09T11:20:09Z
dc.date.available2019-08-09T11:20:09Z
dc.date.issued2019pt_BR
dc.description.abstractThe literature presents many methods to produce data set clusters and the better method choice becomes hardest because the various combinations between them based on different dissimilarity measures can lead to different cluster patterns and false interpretations. Nevertheless, little effort has been expended in evaluating these methods empirically using an archeological data set. In this way, this work has the objective to develop a comparative study of the cluster analysis methods and to identify what is the most appropriate for an archeological data set. For this, 45 ceramic fragments samples data set was analyzed by instrumental neutron activation analysis (INAA). And, five hierarchical methods of cluster were used to this data set: Single linkage, Complete linkage, Average linkage, Centroid and Ward. The validation was done calculating cophenetic correlation coefficient values by a statistical program R and the comparison between them showed the average linkage method was more accurate for the 45 ceramic fragments samples data set. With this, the statistical program R showed be an tool option for other scientists to calculate their cophenetic correlation coefficient and to identify the more accurate methods for their archeological data set.pt_BR
dc.format.extent1-14pt_BR
dc.identifier.citationCARVALHO, P.R.; MUNITA, C.S.; LAPOLLI, A.L. Validity studies among hierarchical methods of cluster analysis using cophenetic correlation coefficient. <b>Brazilian Journal of Radiation Sciences</b>, v. 7, n. 2A, p. 1-14, 2019. DOI: <a href="https://dx.doi.org/10.15392/bjrs.v7i2A.668">10.15392/bjrs.v7i2A.668</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/30052.
dc.identifier.doi10.15392/bjrs.v7i2A.668pt_BR
dc.identifier.fasciculo2Apt_BR
dc.identifier.issn2319-0612pt_BR
dc.identifier.orcid0000-0003-0546-1044pt_BR
dc.identifier.percentilfiSem Percentilpt_BR
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/30052
dc.identifier.vol7pt_BR
dc.relation.ispartofBrazilian Journal of Radiation Sciencespt_BR
dc.rightsopenAccesspt_BR
dc.sourceThe Meeting on Nuclear Applications (ENAN), 13th, 22-27 de outubro, 2017, Belo Horizonte, MGpt_BR
dc.subjectvalidation
dc.subjectneutron activation analysis
dc.subjectarchaeology
dc.subjectquality control
dc.subjectcomparative evaluations
dc.subjectceramics
dc.subjectmultivariate analysis
dc.subjectcluster analysis
dc.subjectelements
dc.titleValidity studies among hierarchical methods of cluster analysis using cophenetic correlation coefficientpt_BR
dc.typeArtigo de periódicopt_BR
dspace.entity.typePublication
ipen.autorANDRE LUIS LAPOLLI
ipen.autorCASIMIRO JAYME ALFREDO SEPULVEDA MUNITA
ipen.autorPRISCILLA RAMOS CARVALHO
ipen.codigoautor154
ipen.codigoautor1325
ipen.codigoautor14257
ipen.contributor.ipenauthorANDRE LUIS LAPOLLI
ipen.contributor.ipenauthorCASIMIRO JAYME ALFREDO SEPULVEDA MUNITA
ipen.contributor.ipenauthorPRISCILLA RAMOS CARVALHO
ipen.date.recebimento19-08
ipen.identifier.fiSem F.I.pt_BR
ipen.identifier.ipendoc25845pt_BR
ipen.type.genreArtigo
relation.isAuthorOfPublication4bf92827-b1d3-4a2e-8231-1d42072554a0
relation.isAuthorOfPublication9f2b42a5-30f7-4805-96a1-1cde2b1a405b
relation.isAuthorOfPublicationcf25394b-e6e8-4ea5-b399-eaae300dffc0
relation.isAuthorOfPublication.latestForDiscoverycf25394b-e6e8-4ea5-b399-eaae300dffc0
sigepi.autor.atividadeLAPOLLI, A.L.:154:110:Npt_BR
sigepi.autor.atividadeMUNITA, C.S.:1325:320:Npt_BR
sigepi.autor.atividadeCARVALHO, P.R.:14257:320:Spt_BR
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