Please use this identifier to cite or link to this item: https://hdl.handle.net/10316/48034
DC FieldValueLanguage
dc.contributor.advisorSantos, José Luis Esteves dos-
dc.contributor.authorNunes, Diogo Henriques Freitas-
dc.date.accessioned2018-03-20T15:24:58Z-
dc.date.available2018-03-20T15:24:58Z-
dc.date.issued2016-07-05-
dc.identifier.urihttps://hdl.handle.net/10316/48034-
dc.description.abstractEste trabalho teve como objetivo aprofundar o conhecimento de uma ferramenta de data mining conhecida como o clustering. Optou-se por direcionar este estudo para um algoritmo de clustering clássico, o K-means, e prova-se a sua convergência. Complementarmente apresentam-se outros dois algoritmos, o Expetation-Maximization e o Kernel K-means, e realizam-se testes de desempenho entre os três. No final aplicaram-se estes algoritmos a vários tipos de problemas nomeadamente no campo da segmentação de imagens.por
dc.description.abstractThe objective of this work was to understand a data mining technique known as clustering. Particulary, this work was focused on a classic algorithm known as K-means and demonstrating its convergence. To understand its potential two more classic algorithms were studied, named Expetation-Maximization and Kernel K-means and their respective performances were tested and compared. Finally, these algorithms were applied on image segmentation.por
dc.language.isoporpor
dc.rightsopenAccesspor
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/por
dc.subjectClusteringpor
dc.subjectClusterspor
dc.subjectK-meanspor
dc.subjectExpectation-Maximizationpor
dc.subjectKernel K-meanspor
dc.titleUm breve estudo sobre o algoritmo K-meanspor
dc.typemasterThesispor
dc.peerreviewedyespor
thesis.degree.nameMestrado em Matemática, área de Especialização em Estatística, Otimização e Matemática Financeira-
uc.controloAutoridadeSim-
item.grantfulltextopen-
item.fulltextCom Texto completo-
item.openairetypemasterThesis-
item.languageiso639-1pt-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.cerifentitytypePublications-
crisitem.advisor.deptFaculty of Sciences and Technology-
crisitem.advisor.parentdeptUniversity of Coimbra-
crisitem.advisor.researchunitCMUC - Centre for Mathematics of the University of Coimbra-
crisitem.advisor.orcid0000-0002-2727-6774-
Appears in Collections:UC - Dissertações de Mestrado
FCTUC Matemática - Teses de Mestrado
Files in This Item:
File Description SizeFormat
Tese_DiogoNunes.pdf1.96 MBAdobe PDFView/Open
Show simple item record

Page view(s) 50

829
checked on Apr 23, 2024

Download(s) 5

5,118
checked on Apr 23, 2024

Google ScholarTM

Check


This item is licensed under a Creative Commons License Creative Commons