Now showing items 1-20 of 91

    • About the intuitionistic fuzzy set generators 

      Bustince Sola, Humberto Upna; Mohedano Salillas, Victoria Upna (Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, 1997)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In this paper form the definition of intuitionistic fuzzy sets we analyze the intuitionistic fuzzy generators and the complementation in these sets. We start by defining the intuitionistic fuzzy generators in order to then ...
    • Affine construction methodology of aggregation functions 

      Roldán López de Hierro, Antonio F.; Roldán, Concepción; Bustince Sola, Humberto Upna; Fernández Fernández, Francisco Javier Upna; Rodríguez Martínez, Iosu Upna; Fardoun, Habib; Lafuente López, Julio Upna (Elsevier, 2020)   Artículo / Artikulua
      Aggregation functions have attracted much attention in recent times because of its potential use in many areas such us data fusion and decision making. In practice, most of the aggregation functions that scientists use in ...
    • Aggregation and pre-aggregation functions in fuzzy rule-based classification systems 

      Lucca, Giancarlo (2018)   Tesis doctoral / Doktoretza tesia  OpenAccess
      Una manera eficiente de tratar problemas de clasificación, entre otras, es el uso de Sistemas de Clasificación Basados en Reglas Difusas (SCBRDs). Estos sistemas están compuestos por dos componentes principales, la Base ...
    • Aggregation functions to combine RGB color channels in stereo matching 

      Galar Idoate, Mikel Upna; Jurío Munárriz, Aránzazu Upna; López Molina, Carlos Upna; Sanz Delgado, José Antonio Upna; Paternain Dallo, Daniel Upna; Bustince Sola, Humberto Upna (Optical Society of America, 2013)   Artículo / Artikulua  OpenAccess
      In this paper we present a comparison study between different aggregation functions for the combination of RGB color channels in stereo matching problem. We introduce color information from images to the stereo matching ...
    • An algorithm for group decision making using n -dimensional fuzzy sets, admissible orders and OWA operators 

      Miguel Turullols, Laura de Upna; Sesma Sara, Mikel Upna; Elkano Ilintxeta, Mikel Upna; Asiain Ollo, María José Upna; Bustince Sola, Humberto Upna (Elsevier, 2017)   Artículo / Artikulua  OpenAccess
      In this paper we propose an algorithm to solve group decision making problems using n -dimensional fuzzy sets, namely, sets in which the membership degree of each element to the set is given by an in- creasing tuple of n ...
    • Application of two different methods for extending lattice-valued restricted equivalence functions used for constructing similarity measures on L-fuzzy sets 

      Palmeira, Eduardo S.; Bedregal, Benjamin Upna; Bustince Sola, Humberto Upna; Paternain Dallo, Daniel Upna; Miguel Turullols, Laura de Upna (Elsevier, 2018)   Artículo / Artikulua  OpenAccess
      Based on previous investigations, we have proposed two different methods to extend lattice-valued fuzzy connectives (t-norms, t-conorms, negations and implications) and other related operators, considering a generalized ...
    • Applications of finite interval-valued hesitant fuzzy preference relations in group decision making 

      Pérez Fernández, Raúl; Alonso, Pedro; Bustince Sola, Humberto Upna; Díaz, Irene; Montes, S. (Elsevier, 2016)   Artículo / Artikulua  OpenAccess
      The main purpose of this paper is to present the twofold group decision making problem, which is a new point of view of the group decision making problem where several experts and criteria can be considered at the same ...
    • CFM-BD: a distributed rule induction algorithm for building compact fuzzy models in Big Data classification problems 

      Elkano Ilintxeta, Mikel Upna; Sanz Delgado, José Antonio Upna; Barrenechea Tartas, Edurne Upna; Bustince Sola, Humberto Upna; Galar Idoate, Mikel Upna (IEEE, 2020)   Artículo / Artikulua  OpenAccess
      Interpretability has always been a major concern for fuzzy rule-based classifiers. The usage of human-readable models allows them to explain the reasoning behind their predictions and decisions. However, when it comes to ...
    • Comments on "Interval type-2 fuzzy sets are generalization of interval-valued fuzzy sets: towards a wider view on their relationship" [2] 

      Mendel, Jerry M.; Hagras, Hani; Bustince Sola, Humberto Upna; Herrera, Francisco (IEEE, 2016)   Otros / Bestelakoak  OpenAccess
      This letter makes some observations about “Interval type-2 fuzzy sets are generalization of interval-valued fuzzy sets: Towards a wide view on their relationship,” IEEE Trans. Fuzzy Systems that further support the ...
    • A compact evolutionary interval-valued fuzzy rule-based classification system for the modeling and prediction of real-world financial applications with imbalanced data 

      Sanz Delgado, José Antonio Upna; Bernardo, Dario; Herrera, Francisco; Bustince Sola, Humberto Upna; Hagras, Hani (IEEE, 2014)   Artículo / Artikulua  OpenAccess
      The current financial crisis has stressed the need of obtaining more accurate prediction models in order to decrease the risk when investing money on economic opportunities. In addition, the transparency of the process ...
    • Computing with uncertainty truth degrees: a convolution-based degrees 

      Miguel Turullols, Laura de Upna (2017)   Tesis doctoral / Doktoretza tesia  OpenAccess
      La teoría de los conjuntos difusos puede contemplarse como un conjunto de herramientas matemáticas excepcionalmente adaptadas para trabajar con información incompleta, falta de nitidez e incertidumbre no aleatoria. De ...
    • Consensus image method for unknown noise removal 

      González Jaime, Luis; Kerre, Etienne E.; Nachtegael, Mike; Bustince Sola, Humberto Upna (Elsevier, 2014)   Artículo / Artikulua  OpenAccess
      Noise removal has been, and it is nowadays, an important task in computer vision. Usually, it is a previous task preceding other tasks, as segmentation or reconstruction. However, for most existing denoising algorithms the ...
    • Construction of admissible linear orders for interval-valued Atanassov intuitionistic fuzzy sets with an application to decision making 

      Miguel Turullols, Laura de Upna; Bustince Sola, Humberto Upna; Fernández Fernández, Francisco Javier Upna; Induráin Eraso, Esteban Upna; Kolesárová, Anna; Mesiar, Radko (Elsevier, 2015)   Artículo / Artikulua  OpenAccess
      In this work we introduce a method for constructing linear orders between pairs of intervals by using aggregation functions. We adapt this method to the case of interval-valued Atanassov intuitionistic fuzzy sets and we ...
    • Construction of capacities from overlap indexes 

      Sanz Delgado, José Antonio Upna; Galar Idoate, Mikel Upna; Mesiar, Radko; Bustince Sola, Humberto Upna; Fernández Fernández, Francisco Javier Upna (Springer, 2017)   Capítulos de libro / Liburuen kapituluak  OpenAccess
      In this chapter, we show how the concepts of overlap function and overlap index can be used to define fuzzy measures which depend on the specific data of each considered problem.
    • Convolution lattices 

      Miguel Turullols, Laura de Upna; Bustince Sola, Humberto Upna; Baets, Bernard de (Elsevier, 2018)   Artículo / Artikulua  OpenAccess
      We propose two convolution operations on the set of functions between two bounded lattices and investigate the algebraic structure they constitute, in particular the lattice laws they satisfy. Each of these laws requires ...
    • Cuantificar los hechos represivos: explicación y retos de la base de datos del fondo documental de la memoria histórica en Navarra 

      Majuelo Gil, Emilio Upna; Mendiola Gonzalo, Fernando Upna; Garmendia Amutxastegi, Gotzon; Piérola Narvarte, Gemma Upna; García Funes, Juan Carlos Upna; Yániz Berrio, Edurne; Pérez Ibarrola, Nerea Upna; Barrenechea Tartas, Edurne Upna; Rodríguez Martínez, Iosu Upna; Sesma Redín, Rubén; Bustince Sola, Humberto Upna (2019)   Documento de trabajo / Lan gaia  OpenAccess
      En este documento se presentan los fundamentos historiográficos y metodológicos de la base de datos del Fondo Documental de la Memoria Histórica en Navarra, desarrollada en la Universidad Pública de Navarra como consecuencia ...
    • Curve-based monotonicity: a generalization of directional monotonicity 

      Roldán López de Hierro, Antonio F.; Sesma Sara, Mikel Upna; Špirková, Jana; Lafuente López, Julio Upna; Pradera, Ana; Mesiar, Radko; Bustince Sola, Humberto Upna (Taylor & Francis, 2019)   Artículo / Artikulua  OpenAccess
      In this work we propose a generalization of the notion of directional monotonicity. Instead of considering increasingness or decreasingness along rays, we allow more general paths defined by curves in the n-dimensional ...
    • d-Choquet integrals: Choquet integrals based on dissimilarities 

      Bustince Sola, Humberto Upna; Mesiar, Radko; Fernández Fernández, Francisco Javier Upna; Galar Idoate, Mikel Upna; Paternain Dallo, Daniel Upna; Altalhi, A. H.; Pereira Dimuro, Graçaliz Upna; Bedregal, Benjamin Upna; Takáč, Zdenko (Elsevier, 2020)   Artículo / Artikulua
      The paper introduces a new class of functions from [0,1]n to [0,n] called d-Choquet integrals. These functions are a generalization of the 'standard' Choquet integral obtained by replacing the difference in the definition ...
    • A decision tree based approach with sampling techniques to predict the survival status of poly-trauma patients 

      Sanz Delgado, José Antonio Upna; Fernández Fernández, Francisco Javier Upna; Bustince Sola, Humberto Upna; Gradin Purroy, Carlos; Belzunegui Otano, Tomás Upna (Atlantis Press, 2017)   Artículo / Artikulua  OpenAccess
      Survival prediction of poly-trauma patients measure the quality of emergency services by comparing their predictions with the real outcomes. The aim of this paper is to tackle this problem applying C4.5 since it achieves ...
    • Description and properties of curve-based monotone functions 

      Sesma Sara, Mikel Upna; Miguel Turullols, Laura de Upna; Roldán López de Hierro, Antonio F.; Špirková, Jana; Mesiar, Radko; Bustince Sola, Humberto Upna (Springer, 2019)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      Curve-based monotonicity is one of the lately introduced relaxations of monotonicity. As directional monotonicity regards monotonicity along fixed rays, which are given by real vectors, curve-based monotonicity studies the ...