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Clustering stability and ground truth: numerical experiments

dc.contributor.authorAmorim, Maria José
dc.contributor.authorCardoso, Maria Margarida
dc.date.accessioned2019-02-19T11:14:53Z
dc.date.available2019-02-19T11:14:53Z
dc.date.issued2016-08-01
dc.description.abstractStability has been considered an important property for evaluating clustering solutions. Nevertheless, there are no conclusive studies on the relationship between this property and the capacity to recover clusters inherent to data ("ground truth"). This study focuses on this relationship resorting to synthetic data generated under diverse scenarios (controlling relevant factors). Stability is evaluated using a weighted cross-validation procedure. Indices of agreement (corrected for agreement by chance) are used both to assess stability and external validation. The results obtained reveal a new perspective so far not mentioned in the literature. Despite the clear relationship between stability and external validity when a broad range of scenarios is considered, within-scenarios conclusions deserve our special attention: faced with a specific clustering problem (as we do in practice), there is no significant relationship between stability and the ability to recover data clusters.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationAMORIM, Maria José; CARDOSO, Margarida G. M. S. – Clustering stability and ground truth: numerical experiments. In 2015 7th International Joint Conference on Knowledge Discovery, Knowledge Engineering and Knowledge Management (IC3K). Lisbon, Portugal: IEEE, 2015. ISBN 978-1-5090-1967-0. Pp. 259-264pt_PT
dc.identifier.isbn978-9-8975-8164-9
dc.identifier.isbn978-1-5090-1967-0
dc.identifier.urihttp://hdl.handle.net/10400.21/9525
dc.language.isoengpt_PT
dc.publisherInstitute of Electrical and Electronics Engineerspt_PT
dc.relation.publisherversionhttps://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=7526928pt_PT
dc.subjectClusteringpt_PT
dc.subjectExternal validationpt_PT
dc.subjectStabilitypt_PT
dc.titleClustering stability and ground truth: numerical experimentspt_PT
dc.typeconference object
dspace.entity.typePublication
oaire.citation.conferencePlace12-14 Nov. 2015 - Lisbon, Portugalpt_PT
oaire.citation.endPage264pt_PT
oaire.citation.startPage259pt_PT
oaire.citation.title2015 7th International Joint Conference on Knowledge Discovery, Knowledge Engineering and Knowledge Management (IC3K)pt_PT
person.familyNameCardoso
person.givenNameMaria Margarida
person.identifier.ciencia-id3E1B-1DAD-9287
person.identifier.orcid0000-0001-6239-7283
person.identifier.scopus-author-id21233265300
rcaap.rightsclosedAccesspt_PT
rcaap.typeconferenceObjectpt_PT
relation.isAuthorOfPublication069c85c4-ebe3-4293-b88a-dd066bc288de
relation.isAuthorOfPublication.latestForDiscovery069c85c4-ebe3-4293-b88a-dd066bc288de

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