Now showing items 64-83 of 135

    • The law of O-conditionality for fuzzy implications constructed from overlap and grouping functions 

      Pereira Dimuro, Graçaliz Upna Orcid; Bedregal, Benjamin Upna; Fernández Fernández, Francisco Javier Upna Orcid; Sesma Sara, Mikel Upna Orcid; Pintor Borobia, Jesús María Upna Orcid; Bustince Sola, Humberto Upna Orcid (Elsevier, 2019)   Artículo / Artikulua  OpenAccess
      Overlap and grouping functions are special kinds of non necessarily associative aggregation operators proposed for many applications, mainly when the associativity property is not strongly required. The classes of overlap ...
    • Learning ordered pooling weights in image classification 

      Forcén Carvalho, Juan Ignacio; Pagola Barrio, Miguel Upna Orcid; Barrenechea Tartas, Edurne Upna Orcid; Bustince Sola, Humberto Upna Orcid (Elsevier, 2020)   Artículo / Artikulua
      Spatial pooling is an important step in computer vision systems like Convolutional Neural Networks or the Bag-of-Words method. The spatial pooling purpose is to combine neighbouring descriptors to obtain a single descriptor ...
    • LeviSense: a platform for the multisensory integration in levitating food and insights into its effect on flavour perception 

      Chi, Thanh Vi; Marzo Pérez, Asier Upna Orcid; Memoli, Gianluca; Maggioni, Emanuela; Ablart, Damien (Elsevier, 2020)   Artículo / Artikulua  OpenAccess
      Eating is one of the most multisensory experiences in everyday life. All of our five senses (i.e. taste, smell, vision, hearing and touch) are involved, even if we are not aware of it. However, while multisensory integration ...
    • Lipschitz free p-spaces for 0 < p < 1 

      Albiac Alesanco, Fernando José Upna Orcid; Ansorena, José L.; Cúth, Marek; Doucha, Michal (SpringerHebrew University Magnes Press, 2020)   Artículo / Artikulua
      This paper initiates the study of the structure of a new class of p-Banach spaces, 0 <p < 1, namely the Lipschitz free p-spaces (alternatively called Arens—Eells p-spaces) Fp(M) over p-metric spaces. We systematically ...
    • Managing transportation externalities in the Pyrenees region: measuring the willingness-to-pay for road freight noise reduction using an experimental auction mechanism 

      Denant-Boemont, Laurent; Faulín Fajardo, Javier Upna Orcid; Hammiche, Sabrina; Serrano Hernández, Adrián Upna Orcid (Elsevier, 2018)   Artículo / Artikulua  OpenAccess
      The estimation of the noise impact caused by road freight transportation is critical to have acknowledgment of the ambiance pollution caused by road traffic crossing geographical areas containing important natural resources. ...
    • Mathematical content on STEM activities 

      Lasa Oyarbide, Aitzol Upna; Abaurrea Larrayoz, Jaione Upna Orcid; Iribas Pardo, Haritz Upna Orcid (Indonesian Mathematical SocietySriwijaya University (Indonesia), 2020)   Artículo / Artikulua  OpenAccess
      In this paper, a number of STEM educational proposals are systematically analyzed from the lens of mathematics education. An extensive innovation project was implemented during the 2019/2020 academic year in a pilot study ...
    • Mixed-dimensional geometric multigrid methods for single-phase flow in fractured porous media 

      Arrarás Ventura, Andrés Upna Orcid; Gaspar, F. J.; Portero Egea, Laura Upna Orcid; Rodrigo, C. (SIAM, 2019)   Artículo / Artikulua  OpenAccess
      This paper deals with the efficient numerical solution of single-phase flow problems in fractured porous media. A monolithic multigrid method is proposed for solving two-dimensional arbitrary fracture networks with vertical ...
    • Mixture functions and their monotonicity 

      Špirková, Jana; Beliakov, Gleb Upna; Bustince Sola, Humberto Upna Orcid; Fernández Fernández, Francisco Javier Upna Orcid (Elsevier, 2019)   Artículo / Artikulua  OpenAccess
      We consider mixture functions, which are a type of weighted averages for which the corresponding weights are calculated by means of appropriate continuous functions of their inputs. In general, these mixture function need ...
    • Moderate deviation and restricted equivalence functions for measuring similarity between data 

      Altalhi, A. H.; Forcén Carvalho, Juan Ignacio; Pagola Barrio, Miguel Upna Orcid; Barrenechea Tartas, Edurne Upna Orcid; Bustince Sola, Humberto Upna Orcid; Takáč, Zdenko (Elsevier, 2019)   Artículo / Artikulua
      In this work we study the relation between moderate deviation functions, restricted dissimilarity functions and restricted equivalence functions. We use moderate deviation functions in order to measure the similarity or ...
    • Multigrid solvers for multipoint flux approximations of the Darcy problem on rough quadrilateral grids 

      Arrarás Ventura, Andrés Upna Orcid; Gaspar, F. J.; Portero Egea, Laura Upna Orcid; Rodrigo, C. (Springer, 2020)   Artículo / Artikulua  OpenAccess
      In this work, an efficient blackbox-type multigrid method is proposed for solving multipoint flux approximations of the Darcy problem on logically rectangular grids. The approach is based on a cell-centered multigrid ...
    • Multimodal fuzzy fusion for enhancing the motor-imagery-based brain computer interface 

      Ko, Li-Wei; Lu, Yi-Chen; Bustince Sola, Humberto Upna Orcid; Chang, Yu-Cheng; Chang, Yang; Fernández Fernández, Francisco Javier Upna Orcid; Wang, Yu-Kai; Sanz Delgado, José Antonio Upna Orcid; Pereira Dimuro, Graçaliz Upna Orcid; Lin, Chin-Teng (IEEE, 2019)   Artículo / Artikulua  OpenAccess
      Brain–computer interface technologies, such as steady-state visually evoked potential, P300, and motor imagery are methods of communication between the human brain and the external devices. Motor imagery–based brain–computer ...
    • Multipoint flux mixed finite element methods for slightly compressible flow in porous media 

      Arrarás Ventura, Andrés Upna Orcid; Portero Egea, Laura Upna Orcid (Elsevier, 2019)   Artículo / Artikulua  OpenAccess
      In this paper, we consider multipoint flux mixed finite element discretizations for slightly compressible Darcy flow in porous media. The methods are formulated on general meshes composed of triangles, quadrilaterals, ...
    • Multiscale edge detection using first-order derivative of anisotropic Gaussian kernels 

      Wang, Gang; López Molina, Carlos Upna Orcid; Baets, Bernard de (Springer, 2019)   Artículo / Artikulua  OpenAccess
      Spatially scaled edges are ubiquitous in natural images. To better detect edges with heterogeneous widths, in this paper, we propose a multiscale edge detection method based on first-order derivative of anisotropic Gaussian ...
    • Nested formulation paradigms for induced ordered weighted averaging aggregation for decision‐making and evaluation 

      Zhu, Chen; Jin, LeSheng; Mesiar, Radko; Yager, Ronald R.; Paternain Dallo, Daniel Upna Orcid; Bustince Sola, Humberto Upna Orcid (Wiley, 2019)   Artículo / Artikulua  OpenAccess
      Existing extensions to Yager's ordered weighted aver-aging (OWA) operators enlarge the application rangeand to encompass more principles and properties relatedto OWA aggregation. However, these extensions do notprovide a ...
    • New fractional step Runge-Kutta-Nyström methods up to order three 

      Bujanda Cirauqui, Blanca Upna Orcid; Moreta, M. Jesús; Jorge Ulecia, Juan Carlos Upna Orcid (Elsevier, 2020)   Artículo / Artikulua
      Fractional Step Runge–Kutta–Nyströ (FSRKN) methods have been revealed to be an excellent option to integrate numerically many multidimensional evolution models governed by second order in time partial differential equations. ...
    • Non-superreflexivity of Garling sequence spaces and applications to the existence of special types of conditional bases 

      Albiac Alesanco, Fernando José Upna Orcid; Ansorena, José L.; Dilworth, S. J.; Kutzarova, Denka (Instytut Matematyczny, 2020)   Artículo / Artikulua  OpenAccess
      We settle in the negative the problem of the superreflexivity of Garling sequence spaces by showing that they contain a complemented subspace isomorphic to a non-superreflexive mixed-norm sequence space. As a by-product, ...
    • Normalization through invariants in n-dimensional Kepler problems 

      Meyer, Kenneth Ray; Palacián Subiela, Jesús Francisco Upna Orcid; Yanguas Sayas, Patricia Upna Orcid (Pleiades Publishing, 2018)   Artículo / Artikulua  OpenAccess
      We present a procedure for the normalization of perturbed Keplerian problems in n dimensions based on Moser regularization of the Kepler problem and the invariants associated to the reduction process. The approach allows ...
    • The null space of fuzzy inclusion measures 

      Couso, Inés; Bustince Sola, Humberto Upna Orcid; Fernández Fernández, Francisco Javier Upna Orcid; Sánchez, Luciano (IEEE, 2019)   Artículo / Artikulua  OpenAccess
      Some formal relationships between the different axiomatic definitions of inclusion measure are analysed. In particular, the links between the different proposals about the null-space (the collection of pairs associated ...
    • Numerical and experimental investigation of the stability of a drop in a single-axis acoustic levitator 

      Andrade, Marco Aurélio Brizzotti; Marzo Pérez, Asier Upna Orcid (American Institute of Physics, 2019)   Artículo / Artikulua  OpenAccess
      Acoustic levitation can be employed to hold liquid drops in midair, enabling novel applications in X-ray scattering of proteins, amorphous crystallization of solutions, or contactless mixing. Multiple studies have characterized ...
    • On a particular class of Meijer's G functions appearing in fractional calculus 

      Karp, D. B.; López García, José Luis Upna Orcid (Academic Publications, 2018)   Artículo / Artikulua  OpenAccess
      In this paper we investigate the Meijer G-function G p+1,p+1 p,1 which, for certain parameter values, represents the Riemann-Liouville fractional integral of the Meijer-Nørlund function G p,p. p,0 The properties of this ...