BackExaminar por departamento (eus.) "Matematika aplikatua eta estatistika"
Now showing items 21-37 of 37
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Model reduction techniques for the fast inversion of Borehole resistivity Measurements
(2016-12-15)Las medidas de resistividad en perforaciones a traves de tubos se utilizan de manera común para obteneruna mejor caracterización del subsuelo de la tierra. El uso de un tubo que cubre el pozo complicaenormemente las ... -
On a formula of Thompson and McEnteggert for the adjugate matrix
Castillo, Kenier; Zaballa Tejada, Juan Bernardo
(Elsevier, 2022)
For an eigenvalue lambda(0) of a Hermitian matrix A, the formula of Thompson and McEnteggert gives an explicit expression of the adjugate of lambda I-0 - A, Adj(lambda I-0 - A), in terms of eigenvectors of Afor lambda(0) ... -
On downloading and using COIN-OR for solving linear/integer optimization problems
Pérez Sainz de Rozas, Gloria; Garín Martín, María Araceli (2010)
The aim of this technical report is to present some detailed explanations in order to help to use the open source software for optimization COIN-OR. In particular, we describe how to download, install and use the corresponding ... -
On Downloading and Using CPLEX within COIN-OR for Solving Linear/Integer Optimization Problems
Pérez Sainz de Rozas, Gloria; Garín Martín, María Araceli (2011-11)
The aim of this technical report is to present some detailed explanations in order to use the solver CPLEX within COIN-OR environment. In particular, we describe how to download, install and use the corresponding source ... -
On parallel computing for stochastic optimization models and algorithms
(Servicio Editorial de la Universidad del País Vasco/Euskal Herriko Unibertsitatearen Argitalpen Zerbitzua, 2015-01-13)Esta tesis tiene como objetivo principal la resolución de problemas de optimización bajo incertidumbre a gran escala, mediante la interconexión entre las disciplinas de Optimización estocástica y Computación en paralelo. ... -
On solving two stage stochastic linear problems by using a new approach, Cluster Benders Decomposition
Aranburu Laka, Larraitz; Escudero Bueno, Laureano F.; Garín Martín, María Araceli; Pérez Sainz de Rozas, Gloria (2010-11)
The optimization of stochastic linear problems, via scenario analysis, based on Benders decomposition requires to appending feasibility and/or optimality cuts to the master problem until the iterative procedure reaches the ... -
On the use of Neural Networks to solve Differential Equations
(2021-11-13)[EN]Artificial neural networks are parametric models, generally adjusted to solve regression and classification problem. For a long time, a question has laid around regarding the possibility of using these types of models ... -
Predictive factors over time of health-related quality of life in COPD patients
Esteban, Cristóbal; Arostegui Madariaga, Inmaculada; Aramburu, Amaia; Moraza, Javier; Najera Zuloaga, Josu; Aburto, Myriam; Aizpiri, Susana; Chasco, Leyre; Quintana López, José María (BMC, 2020-06-05)
BACKGROUND: Health-related quality of life (HRQoL) should be seen as a tool that provides an overall view of the general clinical condition of a COPD patient. The aims of this study were to identify variables associated ... -
Refined isogeometric analysis: a solver-based discretization method
(2018-06-22)Isogeometric Analysis (IGA) is a computational approach frequently employed nowadaysto study problems governed by partial differential equations (PDEs). This approach definesthe geometry using conventional CAD functions ... -
Subtypes of Patients Experiencing Exacerbations of COPD and Associations with Outcomes
Arostegui Madariaga, Inmaculada; Esteban, Cristóbal; García-Gutierrez, Susana; Baré Mañas, Marisa; Fernández de Larrea, Nerea; Briones, Eduardo; Quintana López, José María (Public Library Science, 2014-06-03)
Chronic obstructive pulmonary disease (COPD) is a complex and heterogeneous condition characterized by occasional exacerbations. Identifying clinical subtypes among patients experiencing COPD exacerbations (ECOPD) could ... -
Symmetrical Motifs in Young Children’s Drawings: A Study on Their Representations of Plant Life
; Merino Maestre, María; Antón Baranda, Álvaro (MDPI, 2018-12-29)
Young children love drawing; this is without question. Besides that, drawings are also of interest to scholars and educators, since they seem to provide food for thought regarding children's conceptual development during ... -
The IRYSS-COPD appropriateness study: objectives, methodology, and description of the prospective cohort
Quintana López, José María; Esteban, Cristóbal; ; García Gutiérrez, Susana; González, Nerea; Arostegui Madariaga, Inmaculada; Lafuente Guerrero, Iratxe; Baré Mañas, Marisa; Blasco, Juan Antonio; Vidal, Silvia; IRYSS-COPD Group (BioMed Central, 2011-11)
Background: Patients with chronic obstructive pulmonary disease (COPD) often experience exacerbations of the disease that require hospitalization. Current guidelines offer little guidance for identifying patients whose ... -
The nucleus does not significantly affect the migratory trajectories of amoeba in two-dimensional environments
; ; Malaina Celada, Iker; ; Pérez Samartín, Alberto Luis ; Boyano López, María Dolores ; ; ; Pérez-Yarza Pérez-Irezabal, Gorka ; ; (Springer Nature, 2019-11-08)
For a wide range of cells, from bacteria to mammals, locomotion movements are a crucial systemic behavior for cellular life. Despite its importance in a plethora of fundamental physiological processes and human pathologies, ... -
The Number of Catalytic Elements Is Crucial for the Emergence of Metabolic Cores
Martínez de la Fuente Martínez, Ildefonso Abel; Vadillo Arroyo, Fernando; Pérez Pinilla, Martín Blas; Vera López, Antonio; Veguillas Losada, Juan Emilio (Public Library of Science, 2009-10-19)
Background: Different studies show evidence that several unicellular organisms display a cellular metabolic structure characterized by a set of enzymes which are always in an active state (metabolic core), while the rest ... -
Use of generalised additive models to categorise continuous variables in clinical prediction
; Arostegui Madariaga, Inmaculada; Quintana López, José María; IRYSS-COPD Group (BioMed Central, 2013-06-26)
Background: In medical practice many, essentially continuous, clinical parameters tend to be categorised by physicians for ease of decision-making. Indeed, categorisation is a common practice both in medical research and ... -
Vortex Filament Equation for some Regular Polygonal Curves
(2020-06-15)Uno de los fenómenos más interesantes en la literatura sobre fluidos es la aparición yevolución de filamentos de vórtice. Algunos de sus ejemplos en el mundo real son los anillosde humo, los remolinos y los tornados. En ... -
What mechanism of niche segregation allows the coexistence of sympatric sibling rhinolophid bats?
Salsamendi Pagola, Egoitz; Garín Atorrasagasti, Ignacio ; Arostegui Madariaga, Inmaculada ; Goiti Ugarte, Urtzi ; Aiartza Azurtza, José Ramón (Biomed Central, 2012)
Introduction: Our purpose was to assess how pairs of sibling horseshoe bats coexists when their morphology and echolocation are almost identical. We collected data on echolocation, wing morphology, diet, and habitat use ...