ListarIF_Articles por tema "archetype analysis"

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    • openAccess   Analysis of Archetypes to Determine Time Use and Workload Profiles of Spanish University Professors 

      Cabero-Fayos, Ismael; Epifanio, Irene; Gual-Arnau, Ximo MDPI (2023)
      Allocation of time use is important to develop appropriate policies, especially in terms of gender equality. Individual well-being depends on many factors, including how time is spent. Therefore, knowing and analysing ...

    • openAccess   Archetypal analysis with missing data: see all samples by looking at a few based on extreme profiles 

      Epifanio, Irene; Ibáñez Gual, Maria Victoria; Simó, Amelia American Statistical Association (2019-05-13)
      In this paper we propose several methodologies for handling missing or incomplete data in Archetype analysis (AA) and Archetypoid analysis (ADA). AA seeks to find archetypes, which are convex combinations of data points, ...

    • openAccess   Archetypal contour shapes 

      Alcacer Sales, Aleix; Epifanio, Irene; Ibáñez Gual, Maria Victoria; Simó, Amelia Università di Cassino e del Lazio Meridionale. Centro Editoriale di Ateneo (2019)
      Shapes are represented by contour functions from planar object outlines. Functional archetypal analysis is proposed to describe closed contour shapes. Each contour function is approximated by a convex combination of ...

    • openAccess   Archetypal shapes based on landmarks and extension to handle missing data 

      Epifanio, Irene; Ibáñez Gual, Maria Victoria; Simó, Amelia Springer Verlag (2017-10)
      Archetype and archetypoid analysis are extended to shapes. The objective is to find representative shapes. Archetypal shapes are pure (extreme) shapes. We focus on the case where the shape of an object is represented by a ...