• Aggregation functions to combine RGB color channels in stereo matching 

      Galar Idoate, Mikel Upna Orcid; Jurío Munárriz, Aránzazu Upna Orcid; López Molina, Carlos Upna Orcid; Sanz Delgado, José Antonio Upna Orcid; Paternain Dallo, Daniel Upna Orcid; Bustince Sola, Humberto Upna Orcid (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 Orcid; Sesma Sara, Mikel Upna Orcid; Elkano Ilintxeta, Mikel Upna Orcid; Asiain Ollo, María José Upna; Bustince Sola, Humberto Upna Orcid (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 ...
    • Analysis and stochastic characterization of TCP flows 

      Aracil Rico, Javier Upna; Morató Osés, Daniel Upna Orcid; Izal Azcárate, Mikel Upna Orcid (Springer, 2000)   Artículo / Artikulua  OpenAccess
      Since the most Internet services use TCP as a transport protocol there is a growing interest in the characterization of TCP flows. However, the flow characteristics depend on a large number of factors, due to the complexity ...
    • 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 ...
    • 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 Orcid; Bustince Sola, Humberto Upna Orcid; Paternain Dallo, Daniel Upna Orcid; Miguel Turullols, Laura de Upna Orcid (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 Orcid; Díaz, Irene; Montes Rodríguez, Susana (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 ...
    • Binary relations coming from solutions of functional equations: orderings and fuzzy subsets 

      Campión Arrastia, María Jesús Upna Orcid; Miguel Turullols, Laura de Upna Orcid; García Catalán, Olga Raquel Upna; Induráin Eraso, Esteban Upna Orcid; Abrísqueta Usaola, Francisco Javier Upna (World Scientific Publishing Company, 2017)   Artículo / Artikulua  OpenAccess
      We analyze the main properties of binary relations, defined on a nonempty set, that arise in a natural way when dealing with real-valued functions that satisfy certain classical functional equations on two variables. We ...
    • BioBuilder as a database development and functional annotation platform for proteins 

      Navarro, J. Daniel; Talreja, Naveen; Peri, Suraj; Vrushabendra, B. M.; Rashmi, B. P.; Padma, N.; Surendranath, Vineeth; Jonnalagadda, Chandra Kiran; Kousthub, P. S.; Deshpande, Nandan; Shanker, K.; Pandey, Akhilesh (BioMed Central, 2004)   Artículo / Artikulua  OpenAccess
      Background: The explosion in biological information creates the need for databases that are easy to develop, easy to maintain and can be easily manipulated by annotators who are most likely to be biologists. However, ...
    • 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 Orcid; Bernardo, Darío; Herrera, Francisco; Bustince Sola, Humberto Upna Orcid; 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 ...
    • 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 ...
    • Consensus image method for unknown noise removal 

      González Jaime, Luis; Kerre, Etienne E.; Nachtegael, Mike; Bustince Sola, Humberto Upna Orcid (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 Orcid; Bustince Sola, Humberto Upna Orcid; Fernández Fernández, Francisco Javier Upna Orcid; Induráin Eraso, Esteban Upna Orcid; 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 ...
    • Convolution lattices 

      Miguel Turullols, Laura de Upna Orcid; Bustince Sola, Humberto Upna Orcid; 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 ...
    • d-XC integrals: on the generalization of the expanded form of the Choquet integral by restricted dissimilarity functions and their applications 

      Wieczynski, Jonata; Fumanal Idocin, Javier Upna Orcid; Lucca, Giancarlo; Borges, Eduardo N.; Asmus, Tiago Upna Orcid; Emmendorfer, Leonardo R.; Bustince Sola, Humberto Upna Orcid; Pereira Dimuro, Graçaliz Upna Orcid (IEEE, 2022)   Artículo / Artikulua  OpenAccess
      Restricted dissimilarity functions (RDFs) were introduced to overcome problems resulting from the adoption of the standard difference. Based on those RDFs, Bustince et al. introduced a generalization of the Choquet integral ...
    • A decision tree based approach with sampling techniques to predict the survival status of poly-trauma patients 

      Sanz Delgado, José Antonio Upna Orcid; Fernández Fernández, Francisco Javier Upna Orcid; Bustince Sola, Humberto Upna Orcid; Gradín Purroy, Carlos; Belzunegui Otano, Tomás Upna Orcid (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 ...
    • Delay-throughput curves for timer-based OBS burstifiers with light load 

      Izal Azcárate, Mikel Upna Orcid; Aracil Rico, Javier Upna; Morató Osés, Daniel Upna Orcid; Magaña Lizarrondo, Eduardo Upna Orcid (IEEE, 2006)   Artículo / Artikulua  OpenAccess
      The OBS burstifier delay-throughput curves are analyzed in this paper. The burstifier incorporates a timer-based scheme with minimum burst size, i. e., bursts are subject to padding in light-load scenarios. Precisely, due ...
    • Desarrollo de un sistema de decisión basado en lógica borrosa para el uso de bombas de insulina 

      Galván Herrera, José Basilio Upna Orcid; Recarte Mendiburu, Leticia; Pérez-Ilzarbe Serrano, María José Upna Orcid (AISTI - Associação Ibérica de Sistemas e Tecnologias de Informação, 2014)   Artículo / Artikulua  OpenAccess
      Basándonos en el conocimiento de un usuario experto en la utilización de bombas de insulina, hemos desarrollado un software de apoyo para usuarios noveles de dicha tecnología. Nuestro sistema de decisión tiene en cuenta ...
    • Descubrimiento de conocimiento en bases de datos utilizando técnicas de morfología matemática borrosa 

      Frago Paños, Noé Natalio Upna; Fuentes González, Ramón Upna Orcid (Centro de Información Tecnológica, 2007)   Artículo / Artikulua  OpenAccess
      En este artículo se analiza el efecto, la utilidad y la interpretación de los filtros asociados a la Morfología Matemática Borrosa en procesos de Descubrimiento de Conocimiento en Bases de Datos. En particular se estudian ...
    • Enhancing multi-class classification in FARC-HD fuzzy classifier: on the synergy between n-dimensional overlap functions and decomposition strategies 

      Elkano Ilintxeta, Mikel Upna Orcid; Galar Idoate, Mikel Upna Orcid; Sanz Delgado, José Antonio Upna Orcid; Fernández, Alberto; Barrenechea Tartas, Edurne Upna Orcid; Herrera, Francisco; Bustince Sola, Humberto Upna Orcid (IEEE, 2014)   Artículo / Artikulua  OpenAccess
      There are many real-world classification problems involving multiple classes, e.g., in bioinformatics, computer vision or medicine. These problems are generally more difficult than their binary counterparts. In this scenario, ...
    • EUSC: a clustering-based surrogate model to accelerate evolutionary undersampling in imbalanced classification 

      Le, Hoang Lam; Landa-Silva, Darío; Galar Idoate, Mikel Upna Orcid; García, Salvador; Triguero, Isaac (Elsevier, 2021)   Artículo / Artikulua  OpenAccess
      Learning from imbalanced datasets is highly demanded in real-world applications and a challenge for standard classifiers that tend to be biased towards the classes with the majority of the examples. Undersampling approaches ...

      El Repositorio ha recibido la ayuda de la Fundación Española para la Ciencia y la Tecnología para la realización de actividades en el ámbito del fomento de la investigación científica de excelencia, en la Línea 2. Repositorios institucionales (convocatoria 2020-2021).
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