ListarDepartament: Matemàtiques por tema "Archetypal analysis"

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    • openAccess   Archetypal analysis for ordinal data 

      Fernández, Daniel; Epifanio, Irene; McMillan, Louise Elsevier Inc. (2021-08-03)
      Archetypoid analysis (ADA) is an exploratory approach that explains a set of continuous observations as mixtures of pure (extreme) patterns. Those patterns (archetypoids) are actual observations of the sample which makes ...

    • openAccess   Archetype analysis: A new subspace outlier detection approach 

      Cabero-Fayos, Ismael; Epifanio, Irene; Piérola Orcero, Ana; Ballester, Alfredo Elsevier (2021)
      The problem of detecting outliers in multivariate data sets with continuous numerical features is addressed by a new method. This method combines projections into relevant subspaces by archetype analysis with a nearest ...