2022: Vol. 46, Núm. 1

Summary

  • Fifty years later: new directions in Hawkes processes 

    Worrall, John; Browning, Raiha; Wu, Paul; Mengersen, Kerrie (Institut d'Estadística de Catalunya, 2022-06-02)
    Article
    Open Access
    The Hawkes process is a self-exciting Poisson point process, characterised by a conditional intensity function. Since its introduction fifty years ago, it has been the subject of numerous research directions and continues ...

  • Unusual-event processes for count data 

    Skulpakdee, Wanrudee; Hunkrajok, Mongkol (Institut d'Estadística de Catalunya, 2022-06-02)
    Article
    Open Access
    At least one unusual event appears in some count datasets. It will lead to a more concentrated (or dispersed) distribution than the Poisson, gamma, Weibull, Conway-Maxwell-Poisson (CMP), and Faddy (1997) models can ...

  • Estimation of finite population distribution function with auxiliary information in a complex survey sampling 

    Abbas, Mohsin; Haq, Abdul (Institut d'Estadística de Catalunya, 2022-06-02)
    Article
    Open Access
    In this paper, we consider the problem of estimating the finite population cumulative distribution function (CDF) in a complex survey sampling, which includes two-stage and three-stage cluster sampling schemes with and ...

  • Penalized spline smoothing using Kaplan-Meier weights in semiparametric censored regression models 

    Orbe, Jesus; Virto, Jorge (Institut d'Estadística de Catalunya, 2022-06-02)
    Article
    Open Access
    In this article we consider an extension of the penalized splines approach in the context of censored semiparametric modelling using Kaplan-Meier weights to take into account the effect of censorship. We proposed an ...

  • Estimation of cut-off points under complex-sampling design data 

    Iparragirre, Amaia; Barrio, Irantzu; Aramendi, Jorge; Arostegui, Inmaculada (Institut d'Estadística de Catalunya, 2022-06-02)
    Article
    Open Access
    In the context of logistic regression models, a cut-off point is usually selected to dichotomize the estimated predicted probabilities based on the model. The techniques proposed to estimate optimal cut-off points in the ...