Now showing items 1-14 of 14

    • Application of the L-fuzzy concept analysis in the morphological image and signal processing 

      Alcalde, Cristina; Burusco Juandeaburre, Ana Upna Orcid; Fuentes González, Ramón Upna Orcid (Springer International Publishing, 2014)   Artículo / Artikulua  OpenAccess
      In this work we are going to set up a new relationship between the L-fuzzy Concept Analysis and the Fuzzy Mathematical Morphology. Specifically we prove that the problem of finding fuzzy images or signals that remain ...
    • Concept lattices associated with interval-valued L-fuzzy contexts 

      Burusco Juandeaburre, Ana Upna Orcid; Fuentes González, Ramón Upna Orcid (Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, 1995)   Artículo / Artikulua  OpenAccess
      In 1882 Wille published the paper titled Restructuring lattice theory: an approach based on hierarchies of concepts, where he developed a new theory called formal concept theory. In that paper he analyzes 0/1 relations ...
    • Evolution in time of L-fuzzy context sequences 

      Alcalde, Cristina; Burusco Juandeaburre, Ana Upna Orcid; Bustince Sola, Humberto Upna Orcid; Jurío Munárriz, Aránzazu Upna Orcid; Sanz Delgado, José Antonio Upna Orcid (Elsevier, 2016)   Artículo / Artikulua  OpenAccess
      In this work, we consider a complete lattice L and we study L-fuzzy context sequences which represent the evolution in time of an L-fuzzy context. To carry out this study, in the first part of the paper, we consider n-ary ...
    • Evolution of L-fuzzy contexts associated with criteria 

      Alcalde, Cristina; Burusco Juandeaburre, Ana Upna Orcid (Springer, 2020)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      This paper will delve deeper into the general study of the L-fuzzy contexts associated with criteria analyzing situations with a known evolution over time. These criteria may be independent or dependent on each other. We ...
    • Fuzzy concept lattices and fuzzy relation equations in the retrieval processing of images and signals 

      Alcalde, Cristina; Burusco Juandeaburre, Ana Upna Orcid; Díaz Moreno, Juan Carlos; Medina, Jesús (World Scientific, 2017)   Artículo / Artikulua  OpenAccess
      This paper considers the introduced relations between fuzzy property-oriented concept lattices and fuzzy relation equations, on the one hand, and mathematical morphology, on the other hand, in the retrieval processing ...
    • Knowledge extraction from L-fuzzy contexts associated with criteria evolving over time 

      Alcalde, Cristina; Burusco Juandeaburre, Ana Upna Orcid (IOS Press, 2020)   Artículo / Artikulua  OpenAccess
      Information extracted from L-fuzzy contexts is substantially improved by taking into account different points of view, which can roughly be represented by criteria. This work addresses the general study of L-fuzzy contexts ...
    • Linking mathematical morphology and L-fuzzy concepts 

      Alcalde, Cristina; Burusco Juandeaburre, Ana Upna Orcid; Bustince Sola, Humberto Upna Orcid; Fuentes González, Ramón Upna Orcid; Sesma Sara, Mikel Upna Orcid (World Scientific, 2017)   Artículo / Artikulua  OpenAccess
      In this paper we study the relation between L-fuzzy morphology and L-fuzzy concepts over complete lattices. In particular, we show how the erosion and dilation operators of the former can be understood in terms of the ...
    • Multivalued contexts associated with criteria 

      Alcalde, Cristina; Burusco Juandeaburre, Ana Upna Orcid (Taylor & Francis, 2018)   Artículo / Artikulua  OpenAccess
      We are interested in the study of L-fuzzy contexts taking into account different criteria. These contexts arise when we want to analyze the relationship between objects and attributes from different points of view. ...
    • New measures for comparing matrices and their application to image processing 

      Sesma Sara, Mikel Upna Orcid; Miguel Turullols, Laura de Upna Orcid; Pagola Barrio, Miguel Upna Orcid; Burusco Juandeaburre, Ana Upna Orcid; Mesiar, Radko; Bustince Sola, Humberto Upna Orcid (Elsevier, 2018)   Artículo / Artikulua  OpenAccess
      In this work we present the class of matrix resemblance functions, i.e., functions that measure the difference between two matrices. We present two construction methods and study the properties that matrix resemblance ...
    • Reduction of the size of L-fuzzy contexts. A tool for differential diagnoses of diseases 

      Alcalde, Cristina; Burusco Juandeaburre, Ana Upna Orcid (Taylor & Francis, 2019)   Artículo / Artikulua  OpenAccess
      Information extraction from an L-fuzzy context becomes a hard problem when we work with a large set of objects and/or attributes. The goal of this paper is to present two different and complementary techniques to reduce ...
    • The study of fuzzy context sequences 

      Alcalde, Cristina; Burusco Juandeaburre, Ana Upna Orcid; Fuentes González, Ramón Upna Orcid (Atlantis Press and Taylor & Francis, 2013)   Artículo / Artikulua  OpenAccess
      In some cases, the relationship between an object set X and an attribute set Y is set up by means of a fuzzy context sequence. A particular case of this situation appears when we want to study the evolution of an L-fuzzy ...
    • Trend analysis in L-fuzzy contexts with absent values 

      Alcalde, Cristina; Burusco Juandeaburre, Ana Upna Orcid; Bustince Sola, Humberto Upna Orcid; Sesma Sara, Mikel Upna Orcid (University of Sistan and Baluchestan (Irán), 2020)   Artículo / Artikulua  OpenAccess
      Sometimes we have to work with L-fuzzy context sequences where one or more values are missing. These sequences can represent, among other things, the evolution in time of an L-fuzzy context. The studies of tendencies that ...
    • Use of Choquet integrals in multivalued contexts 

      Burusco Juandeaburre, Ana Upna Orcid; Alcalde, Cristina (Springer, 2020)   Artículo / Artikulua  OpenAccess
      In this work, multivalued contexts are studied, in which the different observations are related to each other. Continuing the studies already carried out in previous works, the use of Choquet integrals can be an adequate ...
    • The use of two relations in L-fuzzy contexts 

      Alcalde, Cristina; Burusco Juandeaburre, Ana Upna Orcid; Fuentes González, Ramón Upna Orcid (Elsevier, 2015)   Artículo / Artikulua  OpenAccess
      In the analysis of relations among the elements of two sets it is usual to obtain different values depending on the point of view from which these relations are measured. The main goal of the paper is the modelization of ...