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  • Locally adaptive density estimation on Riemannian manifolds 

    Henry, Guillermo; Muñoz, Andrés; Rodríguez, Daniela (Institut d'Estadística de Catalunya, 2014-01)
    Article
    Accés obert
    In this paper, we consider kernel type estimator with variable bandwidth when the random variables belong in a Riemannian manifolds. We study asymptotic properties such as the consistency and the asymptotic distribution. ...
  • Selection and pattern mixture models for modelling longitudinal data with dropout: An application study 

    Satty, Ali; Mwambi, H. (Institut d'Estadística de Catalunya, 2014-01)
    Article
    Accés obert
    Incomplete data are unavoidable in studies that involve data measured or observed longitudinally on individuals, regardless of how well they are designed. Dropout can potentially cause serious bias problems in the analysis ...
  • A nonparametric visual test of mixed hazard models 

    Spreeuw, Jaap; Perch Nielsen, Jens; Fiig Jarner, Søren (Institut d'Estadística de Catalunya, 2014-01-02)
    Article
    Accés obert
    We consider mixed hazard models and introduce a new visual inspection technique capable of detecting the credibility of our model assumptions. Our technique is based on a transformed data approach, where the density of the ...
  • Quantile estimation of the rejection distribution of food products integrating assessor values and interval-censored consumer data 

    Langohr, Klaus; Gómez, Guadalupe; Hough, Guillermo (Institut d'Estadística de Catalunya, 2014-01-02)
    Article
    Accés obert
    Fitting parametric survival models with interval-censored data is a common task in survival analysis and implemented in many statistical software packages. Here, we present a novel approach to fit such models if the values ...
  • An alternative to Kim and Warde’s mixed randomized response model 

    Singh, Housila P.; Tarray, Tanveer A. (Institut d'Estadística de Catalunya, 2014-01)
    Article
    Accés obert
    When open or direct surveys are about sensitive matters (e.g. gambling habits, addiction to drug and others intoxicants, alcoholism, proneness to tax invasion, induced abortions, drunken driving, history of past involvement ...
  • Double bounded Kumaraswamy-power series class of distributions 

    Bidram, Hamid; Nekoukhou, Vahid (Institut d'Estadística de Catalunya, 2013-01)
    Article
    Accés obert
    In this paper, we will introduce the new Kumaraswamy-power series class of distributions. This new class is obtained by compounding the Kumaraswamy distribution of Kumaraswamy (1980) and the family of power series ...
  • Analysis of inequality in fertility curves fitted by gamma distributions 

    Ramos, Héctor M.; Peinado, Antonio; Ollero, Jorge; Ramos, María G. (Institut d'Estadística de Catalunya, 2014-01)
    Article
    Accés obert
    The aim of this paper is to analyse fertility curves from a novel viewpoint, that of inequality. Through sufficient conditions that can be easily verified, we compare inequality, in the Lorenz and Generalized Lorenz sense, ...