Listar Artículos de revista DEIM - EIMS Aldizkari artikuluak por título
Mostrando ítems 232-251 de 363
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On the nonlinear stability of the triangular points in the circular spatial restricted three-body problem
Cárcamo Díaz, Daniela Jacqueline; Palacián Subiela, Jesús Francisco
; Vidal Díaz, Claudio; Yanguas Sayas, Patricia (Pleiades Publishing, 2020)
Artículo / Artikulua 
The well-known problem of the nonlinear stability of L4 and L5 in the circular spatial restricted three-body problem is revisited. Some new results in the light of the concept of Lie (formal) stability are presented. In ... -
On the norm-preservation of squares in real algebra representation
Albiac Alesanco, Fernando José ; Blasco, Óscar; Briem, E. (Springer, 2021)
Artículo / Artikulua
One of the main results of the article Gelfand theory for real Banach algebras, recently published in [Rev R Acad Cienc Exactas Fís Nat Ser A Mat RACSAM 114(4):163, 2020] is Proposition 4.1, which establishes that the norm ... -
On the normalization of interval data
Santiago, Regivan; Bergamaschi, Flaulles; Bustince Sola, Humberto ; Pereira Dimuro, Graçaliz ; Asmus, Tiago ; Sanz Delgado, José Antonio (MDPI, 2020)
Artículo / Artikulua
The impreciseness of numeric input data can be expressed by intervals. On the other hand, the normalization of numeric data is a usual process in many applications. How do we match the normalization with impreciseness on ... -
On the notion of fuzzy dispersion measure and its application to triangular fuzzy numbers
Roldán López de Hierro, Antonio Francisco; Bustince Sola, Humberto ; Rueda, María del Mar; Roldán, Concepción; Miguel Turullols, Laura de ; Guerra, Carlos (Elsevier, 2023)
Artículo / Artikulua
In this paper, based on the analysis of the most widely used dispersion measure in the real context (namely, the variance), we introduce the notion of fuzzy dispersion measure associated to a finite set of data given by ... -
On the performances of trend and change-point detection methods for remote sensing data
Militino, Ana F. ; Moradi, Mohammad Mehdi ; Ugarte Martínez, María Dolores (MDPI, 2020)
Artículo / Artikulua
Detecting change-points and trends are common tasks in the analysis of remote sensing data. Over the years, many different methods have been proposed for those purposes, including (modified) Mann-Kendall and Cox-Stuart ... -
On the permutative equivalence of squares of unconditional bases
Albiac Alesanco, Fernando José ; Ansorena, José L. (Elsevier, 2022)
Artículo / Artikulua
We prove that if the squares of two unconditional bases are equivalent up to a permutation, then the bases themselves are permutatively equivalent. This settles a twenty-five year-old question raised by Casazza and Kalton ... -
On the role of distance transformations in Baddeley's Delta Metric
López Molina, Carlos ; Iglesias Rey, Sara ; Bustince Sola, Humberto ; Baets, Bernard de (Elsevier, 2021)
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Comparison and similarity measurement have been a key topic in computer vision for a long time. There is, indeed, an extensive list of algorithms and measures for image or subimage comparison. The superiority or inferiority ... -
Online relative risks/rates estimation in spatial and spatio-temporal disease mapping
Adin Urtasun, Aritz ; Goicoa Mangado, Tomás ; Ugarte Martínez, María Dolores (Elsevier, 2019)
Artículo / Artikulua
Background and objective: Spatial and spatio-temporal analyses of count data are crucial in epidemiology and other fields to unveil spatial and spatio-temporal patterns of incidence and/or mortality risks. However, fitting ... -
Onto-semiotic analysis of diagrammatic reasoning
Giacomone, Belén; Godino, Juan D.; Blanco, Teresa F.; Wilhelmi, Miguel R. (Springer, 2022)
Artículo / Artikulua
Diagrams and in general the use of visualization and manipulative material play an important role in mathematics teaching and learning processes. Although several authors warn that mathematics objects should be distinguished ... -
An ontology-based system to avoid UAS flight conflicts and collisions in dense traffic scenarios
Martín Lammerding, David; Astrain Escola, José Javier ; Córdoba Izaguirre, Alberto; Villadangos Alonso, Jesús (Elsevier, 2023)
Artículo / Artikulua
New Unmanned Aerial Systems (UAS) applications will increase air traffic densities in metropolitan regions. Collision avoidance systems (CAS) are a key component in integrating a high number of UAS into the airspace in a ... -
Operations research helps public health services managers planning resources in the COVID-19 crisis
García de Vicuña Bilbao, Daniel ; Cildoz Esquíroz, Marta ; Gastón Romeo, Martín; Azcárate Camio, Cristina ; Mallor Giménez, Fermín ; Esparza, Laida (Sociedad de Estadística e Investigación Operativa, 2020)
Artículo / Artikulua
This article presents the usefulness of operational research models tosupport the decision-making in management problems on the COVID-19 pandemic. The work describes a discrete event simulation model combined with population ... -
Optical fiber sensors based on microstructured optical fibers to detect gases and volatile organic compounds: a review
López Torres, Diego ; Elosúa Aguado, César ; Arregui San Martín, Francisco Javier (MDPI, 2020)
Artículo / Artikulua
Since the first publications related to microstructured optical fibers (MOFs), the development of optical fiber sensors (OFS) based on them has attracted the interest of many research groups because of the market niches ... -
Optical system based on multiplexed FBGs to monitor hand movements
Socorro Leránoz, Abián Bentor ; Díaz Lucas, Silvia ; Castillo, Silvia; Dreyer, Uilian José; Martelli, Cicero; Cardozo da Silva, Jean Carlos; Uzqueda Esteban, Itziar ; Gómez Fernández, Marisol ; Ruiz Zamarreño, Carlos (IEEE, 2021)
Artículo / Artikulua
This contribution reports the development and characterization of an optical system based on parallel Fiber Bragg Gratings (FBGs) to monitor the movements of the wrist and fingers of a hand. The system consisted of a ... -
Ordered directional monotonicity in the construction of edge detectors
Marco Detchart, Cedric ; Bustince Sola, Humberto ; Fernández Fernández, Francisco Javier ; Mesiar, Radko; Lafuente López, Julio ; Barrenechea Tartas, Edurne ; Pintor Borobia, Jesús María (Elsevier, 2021)
Artículo / Artikulua
In this paper we provide a specific construction method of ordered directionally monotone functions. We show that the functions obtained with this construction method can be used to build edge detectors for grayscale images. ... -
Organic carbon storage and dynamics as affected by the adoption of irrigation in a cultivated calcareous mediterranean soil
Antón Sobejano, Rodrigo; Derrien, Delphine; Urmeneta Martín-Calero, Henar; Van der Heijden, Gregory; Enrique Martín, Alberto ; Virto Quecedo, Íñigo (Frontiers Media, 2022)
Artículo / Artikulua
Irrigation is in the spotlight of land-use planning in semi-arid and sub-humid regions. It can be a promising practice to promote soil organic C storage (SOC), although it may also involve an increase in soil GHG emissions. ... -
Orness for real m-dimensional interval-valued OWA operators and its application to determine a good partition
Miguel Turullols, Laura de ; Paternain Dallo, Daniel ; Lizasoain Iriso, María Inmaculada ; Ochoa Lezaun, Gustavo ; Bustince Sola, Humberto (Taylor & Francis, 2019)
Artículo / Artikulua
Ordered Weighted Averaging (OWA) operators are a profusely applied class of averaging aggregation functions, i.e. operators that always yield a value between the minimum and the maximum of the inputs. The orness measure ... -
Orness measurements for lattice m-dimensional interval-valued OWA operators
Miguel Turullols, Laura de ; Paternain Dallo, Daniel ; Lizasoain Iriso, María Inmaculada ; Ochoa Lezaun, Gustavo ; Bustince Sola, Humberto (Elsevier, 2018)
Artículo / Artikulua
Ordered weighted average (OWA) operators are commonly used to aggregate information in multiple situations, such as decision making problems or image processing tasks. The great variety of weights that can be chosen to ... -
Oscillatory source tensor discriminant analysis (OSTDA): a regularized tensor pipeline for SSVEP-based BCI systems
Jorajuría, Tania ; Jamshidi Idaji, Mina; İşcan, Zafer; Gómez Fernández, Marisol ; Nikulin, Vadim V.; Vidaurre, Carmen (Elsevier, 2021)
Artículo / Artikulua
Periodic signals called Steady-State Visual Evoked Potentials (SSVEP) are elicited in the brain by flickering stimuli. They are usually detected by means of regression techniques that need relatively long trial lengths to ... -
Outcomes for design and learning when teenagers with autism codesign a serious game: a pilot study
Bossavit, Benoît ; Parsons, Sarah (Wiley, 2018)
Artículo / Artikulua
Digital educational games research tends to lack ecological validity by not adequately taking into account the views and perspectives of children and young people with autism spectrum disorders (ASD). This paper is a pilot ... -
An overlapping decomposition framework for wave propagation in heterogeneous and unbounded media: formulation, analysis, algorithm, and simulation
Domínguez Baguena, Víctor ; Ganesh, M.; Sayas, Francisco Javier (Elsevier, 2020)
Artículo / Artikulua
A natural medium for wave propagation comprises a coupled bounded heterogeneous region and an unbounded homogeneous free-space. Frequency-domain wave propagation models in the medium, such as the variable coefficient ...
