Exploració per tema "Approximation"

Ara es mostren els items 1-7 de 7

    • A new approach to role and position detection in networks 

      Vega d'Aurelio, Davide; Magnani, Matteo; Montesi, Danilo; Meseguer Pallarès, Roc; Freitag, Fèlix (2016-06)
      Article
      Accés obert
      We rethink and extend the concepts of position and role in a network, basing them on various well-known measures that were not previously associated with these concepts, such as geodesic distance and modularity. The ...

    • Approximation of tensor fields on surfaces of arbitrary topology based on local Monge parametrizations 

      Torres Sánchez, Alejandro; Santos Oliván, Daniel; Arroyo Balaguer, Marino (2020-03-15)
      Article
      Accés obert
      We introduce a new method, the Local Monge Parametrizations (LMP) method, to approximate tensor fields on general surfaces given by a collection of local parametrizations, e.g. as in finite element or NURBS surface ...

    • Colored spanning graphs for set visualization 

      Hurtado Díaz, Fernando Alfredo; Korman, Matias; Van Kreveld, Matias; Löffler, Maarten; Sacristán Adinolfi, Vera; Shioura, Akiyoshi; Silveira, Rodrigo Ignacio; Speckmann, Bettina; Tokuyama, Takeshi (2018-03)
      Article
      Accés obert
      We study an algorithmic problem that is motivated by ink minimization for sparse set visualizations. Our input is a set of points in the plane which are either blue, red, or purple. Blue points belong exclusively to the ...

    • Decision and approximation complexity for identifying codes and locating-dominating sets in restricted graph classes 

      Foucaud, Florent (2015-03-01)
      Article
      Accés obert
      An identifying code is a subset of vertices of a graph with the property that each vertex is uniquely determined (identified) by its nonempty neighbourhood within the identifying code. When only vertices out of the code ...

    • Finite element dynamical subgrid-scale model for low Mach number flows with radiative heat transfer 

      Ávila Salinas, Matias Oscar; Codina, Ramon; Principe, Ricardo Javier (2015)
      Article
      Accés restringit per política de l'editorial
      The purpose of this paper is to present a finite element approximation of the low Mach number equations coupled with radiative equations to account for radiative heat transfer. For high-temperature flows this coupling can ...

    • Non-linear set-membership identification approach based on the Bayesian framework 

      Fernández Canti, Rosa M.; Tornil Sin, Sebastián; Blesa Izquierdo, Joaquim; Puig Cayuela, Vicenç (2015-06-06)
      Article
      Accés obert
      This study deals with the problem of set-membership identification of non-linear-in-the-parameters models. To solve this problem, this study illustrates how the Bayesian approach can be used to determine the feasible ...

    • Optimal estimation of the roughness coefficient and friction factor of a pipeline 

      Santos Ruiz, Ildeberto de los; Puig Cayuela, Vicenç; López Estrada, Francisco Ronay; Torres Ortiz, Flor Lizeth; Valencia Palomo, Guillermo; Gómez Peñate, Samuel (2021-05-01)
      Article
      Accés obert
      This work addresses the estimation of two interrelated parameters of the fluid flow in pipes. First, a numerical and experimental evaluation of some proposed methods to compute the friction factor in turbulent regime is ...