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Showing 1-20 of 133 results
  1. Some properties of the unified skew-normal distribution

    For the family of multivariate probability distributions variously denoted as unified skew-normal, closed skew-normal and other names, a number of...

    Reinaldo B. Arellano-Valle, Adelchi Azzalini in Statistical Papers
    Article Open access 05 July 2021
  2. Correction to: Some properties of the unified skew-normal distribution

    Reinaldo B. Arellano-Valle, Adelchi Azzalini in Statistical Papers
    Article Open access 10 March 2023
  3. Likelihood-Based Inference for Linear Mixed-Effects Models with Censored Response Using Skew-Normal Distribution

    Mixed-effects models are commonly used to fit longitudinal or repeated measures data. A complication arises when the response is censored, for...
    Thalita B. Mattos, Larissa A. Matos, Victor H. Lachos in Innovations in Multivariate Statistical Modeling
    Chapter 2022
  4. Expectation Propagation for the Smoothing Distribution in Dynamic Probit

    The smoothing distribution of dynamic probit models with Gaussian state dynamics was recently proved to belong to the unified skew-normal family....
    Niccoló Anceschi, Augusto Fasano, Giovanni Rebaudo in Bayesian Statistics, New Generations New Approaches
    Conference paper 2023
  5. Finite mixture of regression models for censored data based on the skew-t distribution

    Finite mixture models have been widely used to model and analyze data from heterogeneous populations. In practical scenarios, these types of data...

    Jiwon Park, Dipak K. Dey, Víctor H. Lachos in Computational Statistics
    Article 10 February 2024
  6. Estimation and Influence Diagnostics for the Multivariate Linear Regression Models with Skew Scale Mixtures of Normal Distributions

    In this paper, we present recent results in the context of multivariate linear regression models considering that random errors follow multivariate...

    Graciliano M. S. Louredo, Camila B. Zeller, Clécio S. Ferreira in Sankhya B
    Article 20 April 2021
  7. Score Tests for Intercept and Slope Parameters of Doubly Multivariate Linear Models with Skew-Normal Errors

    We generalize the theory of linear models for doubly multivariate data from matrix-variate normally distributed errors to matrix-variate skew...

    Timothy Opheim, Anuradha Roy in Journal of Statistical Theory and Practice
    Article 31 January 2021
  8. Unified Bayesian conditional autoregressive risk measures using the skew exponential power distribution

    Conditional Autoregressive Value-at-Risk and Conditional Autoregressive Expectile have become two popular approaches for direct measurement of market...

    Marco Bottone, Lea Petrella, Mauro Bernardi in Statistical Methods & Applications
    Article 18 November 2020
  9. Unified mean-variance feature screening for ultrahigh-dimensional regression

    Feature screening is a popular and efficient statistical technique in processing ultrahigh-dimensional data. When a regression model consists both...

    Liming Wang, **ngxiang Li, ... Peng Lai in Computational Statistics
    Article 17 January 2022
  10. A Unified Bayesian Framework for Bi-overlap**-Clustering Multi-omics Data via Sparse Matrix Factorization

    The advances of modern sequencing techniques have generated an unprecedented amount of multi-omics data which provide great opportunities to...

    Fangting Zhou, Kejun He, ... Yang Ni in Statistics in Biosciences
    Article 08 July 2022
  11. Variance-mean mixture of multivariate normal distribution and weighted gamma distribution: properties and applications

    In this paper, we propose a weighted extension of the family of multivariate Generalized Asymmetric Laplace (GAL) distributions. This extension is...

    Fatma Zehra Doğru, Olcay Arslan in Journal of the Korean Statistical Society
    Article 19 October 2022
  12. Information quantity evaluation of multivariate SETAR processes of order one and applications

    The Self-Exciting Threshold Autoregressive model (SETAR) is non-linear and considers threshold values to model time series affected by regimes. It is...

    Javier E. Contreras-Reyes in Statistical Papers
    Article 15 June 2023
  13. Efficient recursive computational algorithms for multivariate t and multivariate unified skew-t distributions with applications to inference

    In this paper, we establish efficient recursive algorithms for the computation of the cumulative distribution function (cdf) of multivariate...

    Mehdi Amiri, Yaser Mehrali, ... Ahad Jamalizadeh in Computational Statistics
    Article 16 June 2021
  14. Skew-Normal-Cauchy Linear Mixed Models

    In this work, a flexible class of linear mixed models is introduced by assuming that the random effects and model errors follow a skew-normal-Cauchy...

    F. Kahrari, C. S. Ferreira, R. B. Arellano-Valle in Sankhya B
    Article 19 September 2018
  15. A skew-normal dynamic linear model and Bayesian forecasting

    Dynamic linear models are typically developed assuming that both the observational and system distributions are normal. In this work, we relax this...

    Reinaldo B. Arellano-Valle, Javier E. Contreras-Reyes, ... Abel Valdebenito in Computational Statistics
    Article 16 November 2018
  16. Robust estimation and variable selection in heteroscedastic regression model using least favorable distribution

    The assumption of equal variances is not always appropriate and different approaches for modelling variance heterogeneity have been widely studied in...

    Yeşim Güney, Yetkin Tuaç, ... Olcay Arslan in Computational Statistics
    Article 30 October 2020
  17. Robust finite mixture modeling of multivariate unrestricted skew-normal generalized hyperbolic distributions

    In this paper, we introduce an unrestricted skew-normal generalized hyperbolic (SUNGH) distribution for use in finite mixture modeling or clustering...

    Mohsen Maleki, Darren Wraith, Reinaldo B. Arellano-Valle in Statistics and Computing
    Article 19 May 2018
  18. Realized Stochastic Volatility Model

    In this chapter, we further extend the SV model by incorporating a model-free volatility estimator called realized volatility. The realized...
    Makoto Takahashi, Yasuhiro Omori, Toshiaki Watanabe in Stochastic Volatility and Realized Stochastic Volatility Models
    Chapter 2023
  19. Multivariate Order Statistics Induced by Ordering Linear Combinations of Components of Multivariate Elliptical Random Vectors

    In this chapter, by considering a np-dimensional random vector...
    Ahad Jamalizadeh, Roohollah Roozegar, ... Mehrdad Naderi in Computational and Methodological Statistics and Biostatistics
    Chapter 2020
  20. Families of Discrete Circular Distributions with Some Novel Applications

    We give a unified treatment of constructing families of circular discrete distributions. Some of these families are deduced from established...

    Kanti V. Mardia, Karthik Sriram in Sankhya A
    Article Open access 22 November 2022
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