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Counterexamples in isometric theory of symmetric and greedy bases
Albiac Alesanco, Fernando José
; Ansorena, José L.; Blasco, Óscar; Chu, Hùng Việt; Oikhberg, Timur (Elsevier, 2024)
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We continue the study initiated in Albiac and Wojtaszczyk (2006) of properties related to greedy bases in the case when the constants involved are sharp, i.e., in the case when they are equal to 1. Our main goal here is ... -
Ultrametrics for context-aware comparison of binary images
López Molina, Carlos ; Iglesias Rey, Sara ; Baets, Bernard de (Elsevier, 2024)
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Quantitative image comparison has been a key topic in the image processing literature for the past 30 years. The reasons for it are diverse, and so is the range of applications in which measures of comparison are needed. ... -
Large-scale unsupervised spatio-temporal semantic analysis of vast regions from satellite images sequences
Echegoyen Arruti, Carlos; Pérez, Aritz; Santafé Rodrigo, Guzmán ; Pérez-Goya, Unai ; Ugarte Martínez, María Dolores (Springer, 2024)
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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 ... -
A criterion and incremental design construction for simultaneous kriging predictions
Waldl, Helmut; Müller, Werner G.; Trandafir, Paula Camelia (Elsevier, 2024)
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In this paper, we further investigate the problem of selecting a set of design points for universal kriging, which is a widely used technique for spatial data analysis. Our goal is to select the design points in order to ... -
Nyström discretizations of boundary integral equations for the solution of 2D elastic scattering problems
Domínguez Baguena, Víctor ; Turc, Catalin (Elsevier, 2024)
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We present three high-order Nyström discretization strategies of various boundary integral equation formulations of the impenetrable time-harmonic Navier equations in two dimensions. One class of such formulations is ... -
Logistic regression versus XGBoost for detecting burned areas using satellite images
Militino, Ana F. ; Goyena Baroja, Harkaitz; Pérez-Goya, Unai ; Ugarte Martínez, María Dolores (Springer, 2024)
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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 ... -
UAVradio: Radio link path loss estimation for UAVs
Aláez Gómez, Daniel; Celaya Echarri, Mikel; Azpilicueta Fernández de las Heras, Leyre ; Villadangos Alonso, Jesús (Elsevier, 2024)
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The UAVRadio Python module is a comprehensive toolkit designed to facilitate the analysis and prediction of radio signal path loss in Unmanned Aerial Vehicle (UAV) communication scenarios. The module encompasses a range ... -
A new family of aggregation functions for intervals
Díaz-Vázquez, Susana; Torres-Manzanera, Emilio; Rico, Noelia; Mesiar, Radko; Rodríguez Martínez, Iosu ; Lafuente López, Julio ; Díaz, Irene; Montes, Susana; Bustince Sola, Humberto (Springer, 2024)
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Aggregation operators are unvaluable tools when different pieces of information have to be taken into account with respect to the same object. They allow to obtain a unique outcome when different evaluations are available ... -
A simplified spatial+ approach to mitigate spatial confounding in multivariate spatial areal models
Urdangarin Iztueta, Arantxa; Goicoa Mangado, Tomás; Kneib, Thomas; Ugarte Martínez, María Dolores (Elsevier, 2024)
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Spatial areal models encounter the well-known and challenging problem of spatial confounding. This issue makes it arduous to distinguish between the impacts of observed covariates and spatial random effects. Despite previous ... -
Admissible OWA operators for fuzzy numbers
García-Zamora, Diego; Cruz, Anderson; Neres, Fernando; Santiago, Regivan; Roldán López de Hierro, Antonio Francisco; Paiva, Rui; Dimuro, Graçaliz P.; Martínez López, Luis; Bedregal, Benjamin ; Bustince Sola, Humberto (Elsevier, 2024)
Artículo / Artikulua
Ordered Weighted Averaging (OWA) operators are some of the most widely used aggregation functions in classic literature, but their application to fuzzy numbers has been limited due to the complexity of defining a total ... -
The uniform asymptotic method "saddle point near an end point" revisited
López García, José Luis ; Pagola Martínez, Pedro Jesús ; Palacios Herrero, Pablo (Elsevier, 2024)
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We continue the program initiated in [López & all, 2009–2011] to simplify asymptotic methods for integrals: in this paper we revise the uniform method ‘‘saddle point near an end point’’. We obtain a more systematic version ... -
Jordan 3-graded Lie algebras with polynomial identities
Montaner, Fernando; Paniello Alastruey, Irene (Elsevier, 2024)
Artículo / Artikulua
We study Jordan 3-graded Lie algebras satisfying 3-graded polynomial identities. Taking advantage of the Tits-Kantor-Koecher construction, we interpret the PI-condition in terms of their associated Jordan pairs, which ... -
Comment on 'Effects of Vivifrail multicomponent intervention on functional capacity' by Casas-Herrero et al.-The authors reply.
Sánchez Sánchez, Juan Luis; Izquierdo Redín, Mikel; López Saez de Asteasu, Mikel; Antón Rodrigo, Iván; Galbete Jiménez, Arkaitz ; Álvarez Bustos, Alejandro; Casas Herrero, Álvaro (Wiley, 2024)
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In this response letter, we would like to clarify some aspects related to the methodology and inferences derived from our work entitled 'Effects of Vivifrail multicomponent intervention on functional capacity', which was ... -
Construction methods of fuzzy implications on bounded posets
Wang, Mei; Zhang, Xiaohong; Bustince Sola, Humberto ; Fernández Fernández, Francisco Javier (Elsevier, 2024)
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The fuzzy implication on bounded lattices was introduced by Palmeira et al., and the method of extending fuzzy implications on bounded lattices by using retraction was provided. However, we find that the extension of fuzzy ... -
A study on the suitability of different pooling operators for convolutional neural networks in the prediction of COVID-19 through chest x-ray image analysis
Rodríguez Martínez, Iosu ; Ursúa Medrano, Pablo; Fernández Fernández, Francisco Javier ; Takáč, Zdenko; Bustince Sola, Humberto (Elsevier, 2024)
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The 2019 coronavirus disease outbreak, caused by the severe acute respiratory syndrome type-2 virus (SARS-CoV-2), was declared a pandemic in March 2020. Since its emergence to the present day, this disease has brought ... -
Supervised penalty-based aggregation applied to motor-imagery based brain-computer-interface
Fumanal Idocin, Javier ; Vidaurre, Carmen ; Fernández Fernández, Francisco Javier ; Gómez Fernández, Marisol ; Andreu-Perez, J.; Prasad, M.; Bustince Sola, Humberto (Elsevier, 2024)
Artículo / Artikulua
In this paper we propose a new version of penalty-based aggregation functions, the Multi Cost Aggregation choosing functions (MCAs), in which the function to minimize is constructed using a convex combination of two relaxed ... -
Body composition and resting energy expenditure in a group of children with achondroplasia
Garde-Etayo, Laura; Trandafir, Paula Camelia ; Saint-Laurent, Céline; Ugarte Martínez, María Dolores ; Insausti Serrano, Ana María (Elsevier, 2024)
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Background: Persons with achondroplasia develop early obesity, which is a comorbidity associated with other complications. Currently, there are no validated specific predictive equations to estimate resting energy expenditure ... -
Probabilistic study of induced ordered linear fusion operators for time series forecasting
Baz, Juan; Ferrero Jaurrieta, Mikel; Díaz, Irene; Montes, Susana; Beliakov, Gleb; Bustince Sola, Humberto (Elsevier, 2024)
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The aggregation of several predictors in time series forecasting has been used intensely in the last decade in order to construct a better resulting model. Some of the most used alternatives are the ones related to the ... -
Optimizing last-mile delivery: a multi-criteria approach with automated smart lockers, capillary distribution and crowdshipping
(MDPI, 2024) Artículo / Artikulua
Background: This publication presents a review, multiple criteria optimization models, and a practical example pertaining to the integration of automated smart locker systems, capillary distribution networks, crowdshipping, ... -
The optimal container selection problem for parts transportation in the automotive sector
Cildoz Esquíroz, Marta ; Mateo, Pedro; Alonso, María Teresa; Parreño, Francisco; Alvarez-Valdes, Ramon; Mallor Giménez, Fermín (Elsevier, 2024)
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Today's automotive factories are essentially assembly plants that receive parts from a vast network of suppliers around the world. Transporting thousands of part types over very long distances is a major logistic problem ...
