García Mollá, Víctor Manuel; Alonso-Jordá, Pedro(Springer-Verlag, 2023-01)
[EN] Border tracking in binary images is an important operation in many computer vision applications. The problem consists in finding borders in a 2D binary image (where all of the pixels are either 0 or 1). There are ...
García Mollá, Víctor Manuel; Alonso-Jordá, Pedro; García-Laguía, Ricardo(Springer-Verlag, 2020-01-19)
[EN] Border tracking in binary images is an important kernel for many applications. There are very efficient sequential algorithms, most notably, the algorithm proposed by Suzuki et al., which has been implemented for CPUs ...
Campos, Carmen; Román Moltó, José Enrique(Wiley, 2016-08)
Methods for the polynomial eigenvalue problem sometimes need to be followed by an iterative refinement process to improve the accuracy of the computed solutions. This can be accomplished by means of a Newton iteration ...
Campos, Carmen; Román Moltó, José Enrique(Society for Industrial and Applied Mathematics, 2016)
Polynomial eigenvalue problems are often found in scientific computing applications. When the coefficient matrices of the polynomial are large and sparse, usually only a few eigenpairs are required and projection methods ...
García Mollá, Víctor Manuel; Simarro, M. Angeles; Martínez Zaldívar, Francisco José; Boratto, Murilo; Alonso-Jordá, Pedro; Gonzalez, Alberto(Springer-Verlag, 2022-04)
[EN] Generalized Spatial Modulation is a recently developed technique that is designed to enhance the efficiency of transmissions in MIMO Systems. However, the procedure for correctly retrieving the sent signal at the ...
Ramiro Sánchez, Carla; López-Espín, José J.; Giménez, Domingo; Vidal, Antonio M.(Universitat Politècnica de València, 2012-03-06)
Today it is usual to have computational systems formed by a multicore together with one or more GPUs. These systems are heterogeneous, due to the di erent types of memory in the GPUs and to the di erent speeds of computation ...
The parallelization of the finite-difference time-domain (FDTD) method for room acoustic simulation using graphic processing units (GPUs) has been subject of study even prior to the introduction of GPGPU (general-purpose ...
Mellado Pinto, Blanca(Universitat Politècnica de València, 2023-10-22)
[ES] El trabajo se centra en el software Yambo, un programa de código abierto que implementa métodos de primeros principios basados en la función de Green para describir las propiedades de estados excitados en materiales ...
Muñoz-Montoro, A. J.; Ranilla, J.; Vera-Candeas, P.; Combarro, E. F.; Alonso-Jordá, Pedro(Springer-Verlag, 2019)
[EN] This paper presents a parallel real-time sound source separation system for decomposing an audio signal captured with a single microphone in so many audio signals as the number of instruments that are really playing. ...
Moinelo Torres, Mateo José(Universitat Politècnica de València, 2022-10-17)
[CA] Les ones estacionàries són pertorbacions oscil·latòries en les quals uns determinats punts romanen immòbils mentre la resta es desplacen de posició. Un exemple d’aquest fenomen serien les figures de Chladni, uns patrons ...
López Espín, José Juan; Vidal Maciá, Antonio Manuel; Giménez ., Domingo(Elsevier, 2012-09)
This paper analyzes the solution of simultaneous equations models. Efficient algorithms for the two-stage least squares method using QR-decomposition are developed and studied. The reduction of the execution time when the ...
Ramos Peinado, Enrique; Roman Moltó, José Enrique; Abarca Giménez, Agustín; Miró Herrero, Rafael; Bermejo, Juan A.; Ortego, Alberto; Posada-Barral, Jose Maria(Taylor & Francis, 2017)
[EN] Thanks to advances in computer technology, it is feasible to obtain detailed reactor core descriptions for safety analysis of the light water reactor (LWR), in order to represent realistically the fuel elements design, ...