Enviaments recents

  • The probabilistic p-center problem: Planning service for potential customers 

    Martínez Merino, Luisa I.; Albareda Sambola, Maria; Rodríguez Chía, Antonio Manuel (Elsevier, 2017-10-16)
    Article
    Accés restringit per política de l'editorial
    This work deals with the probabilistic p-center problem, which aims at minimizing the expected maximum distance between any site with demand and its center, considering that each site has demand with a specific probability. ...
  • Dimensionality reduction for samples of bivariate density level sets: an application to electoral results 

    Delicado Useros, Pedro Francisco (Springer, 2017)
    Text en actes de congrés
    Accés obert
    A bivariate densities can be represented as a density level set containing a fixed amount of probability (0.75, for instance). Then a functional dataset where the observations are bivariate density functions can be analyzed ...
  • Another look at principal curves and surfaces 

    Delicado Useros, Pedro Francisco (2001-03)
    Article
    Accés obert
    Principal curves have been defined as smooth curves passing through the “middle” of a multidimensional data set. They are nonlinear generalizations of the first principal component, a characterization of which is the basis ...
  • Influence of data resolution in nonlinear loads model for harmonics prediction 

    Balcells Sendra, Josep; Lamich Arocas, Manuel; Griful Ponsati, Eulàlia; Corbalán Fuertes, Montserrat (2016)
    Article
    Accés obert
    This paper describes the influence of data resolution in the agreement of models to predict harmonics generated by nonlinear loads (NLL), basically formed by single phase and three phase rectifiers, eventually combined ...
  • Optimal level sets for representing a bivariate density function 

    Delicado Useros, Pedro Francisco; Vieu, Philippe (2014)
    Text en actes de congrés
    Accés obert
    We deal with the problem of representing a bivariate density function by level sets. The choice of which levels are used in this representation are commonly arbitrary (most usual choices being those with probability ...
  • Load-sharing policies in parallel simulation of agent-based demographic models 

    Pellegrini, Alessandro; Montañola Sales, Cristina; Quaglia, Francesco; Casanovas Garcia, Josep (2017)
    Article
    Accés obert
    Execution parallelism in agent-Based Simulation (ABS) allows to deal with complex/large-scale models. This raises the need for runtime environments able to fully exploit hardware parallelism, while jointly offering ABS-suited ...
  • Contagion between United States and european markets during the recent crises 

    Muñoz Gracia, María del Pilar; Márquez Cebrián, Dolores; Sánchez Espigares, Josep Anton (2011-07)
    Article
    Accés obert
    The main objective of this paper is to detect the existence of financial contagion between the North American and European markets during the recent crises. To accomplish this, the relationships between the US and the Euro ...
  • Exploring link covering and node covering formulations of detection layout problem 

    Barceló Bugeda, Jaime; Gilliéron, Fanny; Linares Herreros, Mª Paz; Serch Muni, Oriol; Montero Mercadé, Lídia (2012-02)
    Article
    Accés obert
    The primary data input used in principal traffic models comes from Origin-Destination (OD) trip matrices, which describe the patterns of traffic behavior across the network. In this way, OD matrices become a critical ...
  • Marshall-Olkin extended Zipf distribution 

    Pérez Casany, Marta; Duarte López, Ariel; Prat Pérez, Arnau (Springer, 2015-12-18)
    Capítol de llibre
    Accés obert
    Being able to generate large synthetic graphs resembling those found in the real world, is of high importance for the design of new graph algorithms and benchmarks. In this paper, we first compare several probability models ...
  • Use of results from honing test machines to determine roughness in industrial honing machines 

    Buj Corral, Irene; Rodero de Lamo, Lourdes; Marco Almagro, Lluís (Elsevier Ltd, 2017-08-01)
    Article
    Accés restringit per política de l'editorial
    In the present work, a new methodology is presented to translate roughness results from a test machine to different industrial machines without the need to stop production for a long time. First, mathematical models were ...

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