• Large-scale unsupervised spatio-temporal semantic analysis of vast regions from satellite images sequences 

      Echegoyen Arruti, Carlos; Pérez, Aritz; Santafé Rodrigo, Guzmán Upna Orcid; Pérez-Goya, Unai Upna Orcid; Ugarte Martínez, María Dolores Upna Orcid (Springer, 2024)   Artículo / Artikulua  OpenAccess
      Temporal sequences of satellite images constitute a highly valuable and abundant resource for analyzing regions of interest. However, the automatic acquisition of knowledge on a large scale is a challenging task due to ...
    • The law of O-conditionality for fuzzy implications constructed from overlap and grouping functions 

      Pereira Dimuro, Graçaliz Upna Orcid; Bedregal, Benjamin Upna Orcid; 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  OpenAccess
      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 ...
    • LeviPrint: contactless additive manufacturing using acoustic levitation with position and orientation control of elongated parts 

      Ezcurdia Aguirre, Íñigo Fermín Upna Orcid; Morales González, Rafael; Marzo Pérez, Asier Upna Orcid (2021)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      LeviPrint assembles small objects in a contactless way using ultrasonic phased-arrays and optimization algorithms. We explore a set of methods that enables 6 Degrees-of-Freedom (DoF) control of elongated bodies. We then ...
    • 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 ...
    • LevPet: a magnetic levitating spherical pet with affective reactions 

      Sorbet Molina, Josune; Elizondo Martínez, Sonia; Iriarte Cárdenas, Naroa; Ortiz Nicolás, Amalia; Marzo Pérez, Asier Upna Orcid (ACM, 2022)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      LevPet combines affective computing and magnetic levitation to create an artificial levitating pet with affective responses and novel ways of moving to express emotions. Our interactive pet can recognise the user's emotional ...
    • A linearly implicit splitting method for solving time dependent semilinear reaction-diffusion systems 

      Clavero, Carmelo; Jorge Ulecia, Juan Carlos Upna Orcid (Springer, 2020)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In this paper we deal with the efficient resolution of a coupled system of two one dimensional, time dependent, semilinear parabolic singularly perturbed partial differential equations of reaction-diffusion type, with ...
    • Lipschitz algebras and Lipschitz-Free spaces over unbounded metric spaces 

      Albiac Alesanco, Fernando José Upna Orcid; Ansorena, José L.; Cúth, Marek; Doucha, Michal (Oxford University Press, 2021)   Artículo / Artikulua  OpenAccess
      We investigate a way to turn an arbitrary (usually, unbounded) metric space M into a bounded metric space B in such a way that the corresponding Lipschitz-free spaces F(M) and F(B) are isomorphic. The construction we provide ...
    • 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  OpenAccess
      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 ...
    • Lipschitz free spaces isomorphic to their infinite sums and geometric applications 

      Albiac Alesanco, Fernando José Upna Orcid; Ansorena, José L.; Cúth, Marek; Doucha, Michal (American Mathematical Society, 2021)   Artículo / Artikulua  OpenAccess
      We find general conditions under which Lipschitz-free spaces over metric spaces are isomorphic to their infinite direct _1-sum and exhibit several applications. As examples of such applications we have that Lipschitz-free ...
    • Local properties of strengthened ordered directional and other forms of monotonicity 

      Sesma Sara, Mikel Upna Orcid; Miguel Turullols, Laura de Upna Orcid; Mesiar, Radko; Fernández Fernández, Francisco Javier Upna Orcid; Bustince Sola, Humberto Upna Orcid (Springer, 2019)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In this study we discuss some of the recent generalized forms of monotonicity, introduced in the attempt of relaxing the monotonicity condition of aggregation functions. Specifically, we deal with weak, directional, ordered ...
    • Locally adaptive change-point detection (LACPD) with applications to environmental changes 

      Moradi, Mohammad Mehdi Upna Orcid; Montesino San Martín, Manuel Upna Orcid; Ugarte Martínez, María Dolores Upna Orcid; Militino, Ana F. Upna Orcid (Springer, 2021)   Artículo / Artikulua  OpenAccess
      We propose an adaptive-sliding-window approach (LACPD) for the problem of change-point detection in a set of time-ordered observations. The proposed method is combined with sub-sampling techniques to compensate for the ...
    • Logistic regression versus XGBoost for detecting burned areas using satellite images 

      Militino, Ana F. Upna Orcid; Goyena Baroja, Harkaitz; Pérez-Goya, Unai Upna Orcid; Ugarte Martínez, María Dolores Upna Orcid (Springer, 2024)   Artículo / Artikulua  OpenAccess
      Classical statistical methods prove advantageous for small datasets, whereas machine learning algorithms can excel with larger datasets. Our paper challenges this conventional wisdom by addressing a highly significant ...
    • Machine learning procedures for daily interpolation of rainfall in Navarre (Spain) 

      Militino, Ana F. Upna Orcid; Ugarte Martínez, María Dolores Upna Orcid; Pérez Goya, Unai Upna Orcid (Springer, 2023)   Capítulo de libro / Liburuen kapitulua
      Kriging is by far the most well known and widely used statistical method for interpolating data in spatial random fields. The main reason is that it provides the best linear unbiased predictor and it is an exact interpolator ...
    • Magnetic confinement of a neutral atom in a double-wire waveguide: a nonlinear dynamics approach 

      Salas, José Pablo; Iñarrea, Manuel; Lanchares, Víctor; Palacián Subiela, Jesús Francisco Upna Orcid; Yanguas Sayas, Patricia Upna Orcid (Elsevier, 2021)   Artículo / Artikulua  OpenAccess
      In this paper we focus on the classical dynamics of a neutral atom trapped in a doublewire waveguide in the presence of two uniform bias fields. Because the trapping region takes place in a plane perpendicular to the ...
    • A management flight simulator of an intensive care unit 

      García de Vicuña Bilbao, Daniel Upna Orcid; Mallor Giménez, Fermín Upna Orcid; Esparza, Laida; Mateo, Pedro (IEEE, 2019)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      Management Flight Simulators (MFS) supply a simulated environment in which managers can learn from experience in a controlled setting. Although its use is usual in other areas, no such software has been developed to learn ...
    • 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. ...
    • A mathematical approach to law and deal modelling: legislation and agreements 

      Benito Ostolaza, Juan Miguel Upna Orcid; Campión Arrastia, María Jesús Upna Orcid; Estevan Muguerza, Asier Upna Orcid (MDPI, 2021)   Artículo / Artikulua  OpenAccess
      Social norms are a set of rules to be followed by the people of a community in order to have a better coexistence, to which the behaviors, tasks, and activities of the human being must be adjusted. The set or system of ...
    • 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 ...
    • Measures of embedding for interval-valued fuzzy sets 

      Bouchet, Agustina; Sesma Sara, Mikel Upna Orcid; Ochoa Lezaun, Gustavo Upna Orcid; Bustince Sola, Humberto Upna Orcid; Montes, Susana; Díaz, Irene (Elsevier, 2023)   Artículo / Artikulua  OpenAccess
      Interval-valued fuzzy sets are a generalization of classical fuzzy sets where the membership values are intervals. The epistemic interpretation of interval-valued fuzzy sets assumes that there is one real-valued membership ...

      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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