• A framework for radial data comparison and its application to fingerprint analysis 

      Marco Detchart, Cedric Upna Orcid; Cerrón González, Juan Upna; Miguel Turullols, Laura de Upna Orcid; López Molina, Carlos Upna Orcid; Bustince Sola, Humberto Upna Orcid; Galar Idoate, Mikel Upna Orcid (Elsevier, 2016)   Artículo / Artikulua  OpenAccess
      This work tackles the comparison of radial data, and proposes comparison measures that are further applied to fingerprint analysis. First, we study the similarity of scalar and non-scalar radial data, elaborated on previous ...
    • 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 ...
    • Fuzzy morphological operators in image processing 

      Burillo López, Pedro Upna; Frago Paños, Noé Natalio Upna; Fuentes González, Ramón Upna Orcid (Universitat Politècnica de Catalunya, 2003)   Artículo / Artikulua  OpenAccess
      First of all, in this paper we propose a family of fuzzy implication operators, which the generalised Luckasiewicz´s one, and to analyse the impacts of Smets and Magrez properties on these operators. The result of this ...
    • Fuzzy rule-based classification systems for multi-class problems using binary decomposition strategies: on the influence of n-dimensional overlap functions in the fuzzy reasoning method 

      Elkano Ilintxeta, Mikel Upna Orcid; Galar Idoate, Mikel Upna Orcid; Sanz Delgado, José Antonio Upna Orcid; Bustince Sola, Humberto Upna Orcid (Elsevier, 2016)   Artículo / Artikulua  OpenAccess
      Multi-class classification problems appear in a broad variety of real-world problems, e.g., medicine, genomics, bioinformatics, or computer vision. In this context, decomposition strategies are useful to increase the ...
    • General overlap functions 

      Miguel Turullols, Laura de Upna Orcid; Gómez, Daniel; Tinguaro, Javier; Montero, Javier; Bustince Sola, Humberto Upna Orcid; Pereira Dimuro, Graçaliz Upna Orcid; Sanz, Jose Antonio (Elsevier, 2019)   Artículo / Artikulua  OpenAccess
      As a generalization of bivariate overlap functions, which measure the degree of overlapping (intersection for non-crisp sets) of n different classes, in this paper we introduce the concept of general overlap functions. We ...
    • Generation of fuzzy mathematical morphologies 

      Burillo López, Pedro Upna; Frago Paños, Noé Natalio Upna; Fuentes González, Ramón Upna Orcid (Universitat Politècnica de Catalunya, 2001)   Artículo / Artikulua  OpenAccess
      Fuzzy Mathematical Morphology aims to extend the binary morphological operators to grey-level images. In order to define the basic morphological operations fuzzy erosion, dilation, opening and closing, we introduce ...
    • A genetic tuning to improve the performance of fuzzy rule-based classification systems with interval-valued fuzzy sets: degree of ignorance and lateral position 

      Sanz Delgado, José Antonio Upna Orcid; Fernández, Alberto; Bustince Sola, Humberto Upna Orcid; Herrera, Francisco (Elsevier, 2011)   Artículo / Artikulua  OpenAccess
      Fuzzy Rule-Based Systems are appropriate tools to deal with classification problems due to their good properties. However, they can suffer a lack of system accuracy as a result of the uncertainty inherent in the definition ...
    • Growth in the number of references in engineering journal papers during the 1972-2013 period 

      Úcar Marqués, Iñaki; López Fernandino, Felipe; Rodríguez Ulibarri, Pablo Upna Orcid; Sesma Sánchez, Laura Upna; Urrea Micó, Verónica Upna; Sevilla Moróder, Joaquín Upna Orcid (Springer, 2014)   Artículo / Artikulua  OpenAccess
      The number of references per paper, perhaps the best single index of a journal’s scholarliness, has been studied in different disciplines and periods. In this paper we present a four decade study of eight engineering ...
    • Handling multicriteria fuzzy decision-making problems based on intuitionistic fuzzy sets 

      Bustince Sola, Humberto Upna Orcid (Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, 1995)   Artículo / Artikulua  OpenAccess
      In this paper we present a new technique for handling multicriteria decision making problems based on intuitionistic fuzzy sets. In this new technique we use the degree of reliability and of non-reliability of each criterion ...
    • A historical account of types of fuzzy sets and their relationships 

      Bustince Sola, Humberto Upna Orcid; Barrenechea Tartas, Edurne Upna Orcid; Pagola Barrio, Miguel Upna Orcid; Fernández Fernández, Francisco Javier Upna Orcid; Xu, Zeshui; Bedregal, Benjamin Upna Orcid; Montero, Javier; Hagras, Hani; Herrera, Francisco; Baets, Bernard de (IEEE, 2016)   Artículo / Artikulua  OpenAccess
      In this work we review the definition and basic properties of the different types of fuzzy sets that have appeared up to now in the literature. We also analyze the relationships between them and enumerate some of the ...
    • Human protein reference database as a discovery resource for proteomics 

      Peri, Suraj; Navarro, J. Daniel; Kristiansen, Troels Z.; Amanchy, Ramars; Surendranath, Vineeth; Muthusamy, Babylakshmi; Gandhi, T. K. B.; Chandrika, K. N.; Deshpande, Nandan; Suresh, Shubha; Rashmi, B. P.; Shanker, K.; Padma, N.; Niranjan, Vidya; Harsha, H. C.; Talreja, Naveen; Vrushabendra, B. M.; Ramya, M. A.; Yatish, A. J.; Joy, Mary; Shivashankar, H. N.; Kavitha, M. P.; Menezes, Minal; Choudhury, Dipanwita Roy; Ghosh, Neelanjana; Saravana, R.; Chandran, Sreenath; Mohan, Sujatha; Jonnalagadda, Chandra Kiran; Prasad, C. K.; Kumar-Sinha, Chandan; Deshpande, Krishna S.; Pandey, Akhilesh (Oxford University Press, 2004)   Artículo / Artikulua  OpenAccess
      The rapid pace at which genomic and proteomic data is being generated necessitates the development of tools and resources for managing data that allow integration of information from disparate sources. The Human Protein ...
    • IIVFDT: ignorance functions based interval-valued fuzzy decision tree with genetic tuning 

      Sanz Delgado, José Antonio Upna Orcid; Fernández, Alberto; Bustince Sola, Humberto Upna Orcid; Herrera, Francisco (World Scientific Publishing Company, 2012)   Artículo / Artikulua  OpenAccess
      The choice of membership functions plays an essential role in the success of fuzzy systems. This is a complex problem due to the possible lack of knowledge when assigning punctual values as membership degrees. To face this ...
    • Image reduction using means on discrete product lattices 

      Beliakov, Gleb Upna; Bustince Sola, Humberto Upna Orcid; Paternain Dallo, Daniel Upna Orcid (IEEE, 2012)   Artículo / Artikulua  OpenAccess
      We investigate the problem of averaging values on lattices, and in particular on discrete product lattices. This problem arises in image processing when several color values given in RGB, HSL, or another coding scheme, ...
    • Improving the performance of fuzzy rule-based classification systems with interval-valued fuzzy sets and genetic amplitude tuning 

      Sanz Delgado, José Antonio Upna Orcid; Fernández, Alberto; Bustince Sola, Humberto Upna Orcid; Herrera, Francisco (Elsevier, 2010)   Artículo / Artikulua  OpenAccess
      Among the computational intelligence techniques employed to solve classification problems, Fuzzy Rule-Based Classification Systems (FRBCSs) are a popular tool because of their interpretable models based on linguistic ...
    • INFFC: an iterative class noise filter based on the fusion of classifiers with noise sensitivity control 

      Sáez, José Antonio; Galar Idoate, Mikel Upna Orcid; Luengo, Julián; Herrera, Francisco (Elsevier, 2015)   Artículo / Artikulua  OpenAccess
      In classification, noise may deteriorate the system performance and increase the complexity of the models built. In order to mitigate its consequences, several approaches have been proposed in the literature. Among them, ...
    • Internet traffic shaping for IP over WDM links with source output buffering or multiple parallel wavelengths 

      Aracil Rico, Javier Upna; Izal Azcárate, Mikel Upna Orcid; Morató Osés, Daniel Upna Orcid (Kluwer Academic Publishers, 2001)   Artículo / Artikulua  OpenAccess
      Since the number of wavelengths per fiber is growing in an exponential fashion the over- flow traffic can be routed through overflow lightpaths, thus providing an ideal network with near-infinite capacity and almost ...
    • Interval type-2 fuzzy sets are generalization of interval-valued fuzzy sets: towards a wider view on their relationship 

      Bustince Sola, Humberto Upna Orcid; Fernández Fernández, Francisco Javier Upna Orcid; Hagras, Hani; Herrera, Francisco; Pagola Barrio, Miguel Upna Orcid; Barrenechea Tartas, Edurne Upna Orcid (IEEE, 2015)   Artículo / Artikulua  OpenAccess
      In this paper, we will present a wider view on the relationship between interval-valued fuzzy sets and interval type- 2 fuzzy sets where we will show that interval-valued fuzzy sets are a particular case of the interval ...
    • Interval-valued Atanassov intuitionistic OWA aggregations using admissible linear orders and their application to decision making 

      Miguel Turullols, Laura de Upna Orcid; Bustince Sola, Humberto Upna Orcid; Pekala, Barbara; Bentkowska, Urszula; Silva, Ivanoska da; Bedregal, Benjamin Upna Orcid; Mesiar, Radko; Ochoa Lezaun, Gustavo Upna Orcid (IEEE, 2016)   Artículo / Artikulua  OpenAccess
      Based on the definition of admissible order for interval-valued Atanassov intuitionistic fuzzy sets, we study OWA operators in these sets distinguishing between the weights associated to the membership and those associated ...
    • Intuitionistic fuzzy relations (Part I) 

      Burillo López, Pedro Upna; Bustince Sola, Humberto Upna Orcid (Universitat Politècnica de Catalunya, 1995)   Artículo / Artikulua  OpenAccess
      This paper introduces the concept of intuitionistic fuzzy relation. We also study the choice of t-norms and t-conorms which must be done in order that the composition of intuitionistic fuzzy relations fulfills the largest ...
    • Intuitionistic fuzzy relations (Part II). Effect of Atanassov's operators on the properties of the intuitionistic fuzzy relations 

      Burillo López, Pedro Upna; Bustince Sola, Humberto Upna Orcid (Universitat Politècnica de Catalunya, 1995)   Artículo / Artikulua  OpenAccess
      In this paper we study the effect of Atanassov's operator on the properties of properties reflexive, symmetric, antisymmetric, perfect antisymmetric and transitive intuitionistic fuzzy relations. We finish the paper analysing ...

      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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