Enviaments recents

  • Nonlinear loads model for harmonics flow prediction, using multivariate regression 

    Lamich Arocas, Manuel; Balcells Sendra, Josep; Corbalán Fuertes, Montserrat; Griful Ponsati, Eulàlia (Institute of Electrical and Electronics Engineers (IEEE), 2017-06)
    Article
    Accés obert
    This paper describes a method for obtaining a model of a single or a set of nonlinear loads (NLL) connected to a certain point of an electrical network. The basic assumption is that the network supplying the NLL has ...
  • Comparison of production strategies and degree of postponement when incorporating additive manufacturing to product supply chains 

    Minguella Canela, Joaquim; Muguruza Blanco, Asier; Bonada Bo, Jordi; Ramón Lumbierres, Daniel Jacobo; Heredia, F.-Javier (Francisco Javier); Gimeno Feu, Robert; Guo, Ping; Hamilton, Mary; Shastry, Kiron; Webb, Sunny (Elsevier, 2017)
    Text en actes de congrés
    Accés obert
    The best-selling products manufactured nowadays are made in long series along rigid product value chains. Product repetition and continuous/stable manufacturing is seen as a chance for achieving economies of scale. ...
  • Choosing the most relevant level sets for depicting a sample of densities 

    Delicado Useros, Pedro Francisco; Vieu, Philippe (2017-09-01)
    Article
    Accés obert
    When exploring a sample composed with a set of bivariate density functions, the question of the visualisation of the data has to front with the choice of the relevant level set(s). The approach proposed in this paper ...
  • On geometrical properties of preconditioners in IPMs for classes of block-angular problems 

    Castro Pérez, Jordi; Nasini, Stefano (2017)
    Article
    Accés obert
    One of the most efficient interior-point methods for some classes of block-angular structured problems solves the normal equations by a combination of Cholesky factorizations and preconditioned conjugate gradient for, ...
  • A linear optimization based method for data privacy in statistical tabular data 

    Castro Pérez, Jordi; González Alastrué, José Antonio (2017-06-15)
    Article
    Accés obert
    National Statistical Agencies routinely disseminate large amount of data. Prior to dissemination these data have to be protected to avoid releasing confidential information. Controlled tabular adjustment (CTA) is one of ...
  • CHROMA: a maturity model for the information-driven decision-making process 

    Tort-Martorell Llabrés, Xavier; Parra, Xileidys (2017)
    Article
    Accés restringit per política de l'editorial
    A novel maturity model for the information-driven decision-making process (DMP) in organisations is presented. The 'circumplex hierarchical representation of organisation maturity assessment' (CHROMA) model was developed ...
  • Puntos de servicio en aseos públicos para minimizar y equilibrar los tiempos de espera de hombres y mujeres 

    Grima Cintas, Pedro; Marco Almagro, Lluís; Tort-Martorell Llabrés, Xavier (Consejo Superior de Investigaciones Científicas (CSIC), 2017-07-01)
    Article
    Accés obert
    The article raises the issue of the queues that usually appear in the ladies toilets in contrast to the fluidity with which gentlemen can access theirs, and points that this situation is only due to bad dimensioning of the ...
  • A methodology to discover and understand complex patterns: interpreted integrative multiview clustering (I2MC) 

    Sevilla-Villanueva, Beatriz; Gibert, Karina; Sànchez-Marrè, Miquel (Elsevier, 2017-02-10)
    Article
    Accés restringit per política de l'editorial
    The main goal of this work is to develop a methodology for finding nutritional patterns from a variety of individual characteristics which can contribute to better understand the interactions between nutrition and health, ...
  • Measuring non-linear dependence for two random variables distributed along a curve 

    Delicado Useros, Pedro Francisco; Marcelo, Smrekar (2009-09)
    Article
    Accés obert
    We propose new dependence measures for two real random variables not necessarily linearly related. Covariance and linear correlation are expressed in terms of principal components and are generalized for variables distributed ...
  • Visualizing type II error in normality tests 

    Sánchez Espigares, Josep Anton; Grima Cintas, Pedro; Marco Almagro, Lluís (2017-01)
    Article
    Accés restringit per política de l'editorial
    A Skewed Exponential Power Distribution, with parameters defining kurtosis and skewness, is introduced as a way to visualize Type II error in normality tests. By varying these parameters a mosaic of distributions is built, ...

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