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Showing 1-20 of 59 results
  1. Asymptotically Normal Estimators for Zipf’s Law

    We study an infinite urn scheme with probabilities corresponding to a power function. Urns here represent words from an infinitely large vocabulary....

    Mikhail Chebunin, Artyom Kovalevskii in Sankhya A
    Article 13 July 2018
  2. Multiple Categorical Covariates-Based Multinomial Dynamic Response Model

    Regression models for multinomial responses with time dependent covariates have been studied recently both in longitudinal and time series setup. For...

    R. Prabhakar Rao, Brajendra C. Sutradhar in Sankhya A
    Article 18 April 2019
  3. Asymptotic Theory for Longitudinal Data with Missing Responses Adjusted by Inverse Probability Weights

    In this article, we propose a new method for analyzing longitudinal data which contain responses that are missing at random. This method consists in...

    R. M. Balan, D. Jankovic in Mathematical Methods of Statistics
    Article 01 April 2019
  4. A New Look at the Models for Ordinal Categorical Data Analysis

    The multinomial/categorical responses, whether they are nominal or ordinal, are recorded in counts under all categories/cells involved. The analysis...

    Brajendra C. Sutradhar, Asokan M. Variyath in Sankhya B
    Article 26 November 2018
  5. Inferences in Binary Dynamic Fixed Models in a Semi-parametric Setup

    In a longitudinal setup, the so-called generalized estimating equations approach was a popular inference technique to obtain efficient regression...

    Brajendra C. Sutradhar, Nan Zheng in Sankhya B
    Article 16 April 2018
  6. Generalised least squares estimation of regularly varying space-time processes based on flexible observation schemes

    Regularly varying stochastic processes model extreme dependence between process values at different locations and/or time points. For such stationary...

    Sven Buhl, Claudia Klüppelberg in Extremes
    Article 03 January 2019
  7. Estimators of the Parameters of Beta Distribution

    The iteration algorithm of computation of effective estimators of the shape parameters of beta distributions using the unbiased estimators of the end...

    Kartlos Joseph Kachiashvili, David I. Melikdzhanjan in Sankhya B
    Article 03 April 2018
  8. Semi-parametric Dynamic Models for Longitudinal Ordinal Categorical Data

    The over all regression function in a semi-parametric model involves a partly specified regression function in some primary covariates and a...

    Brajendra C. Sutradhar in Sankhya A
    Article 17 May 2017
  9. A Variant of AIC Based on the Bayesian Marginal Likelihood

    We propose information criteria that measure the prediction risk of a predictive density based on the Bayesian marginal likelihood from a frequentist...

    Yuki Kawakubo, Tatsuya Kubokawa, Muni S. Srivastava in Sankhya B
    Article 09 February 2018
  10. A Parameter Dimension-Split Based Asymptotic Regression Estimation Theory for a Multinomial Panel Data Model

    In this paper we revisit the so-called non-stationary regression models for repeated categorical/multinomial data collected from a large number of...

    Brajendra C Sutradhar in Sankhya A
    Article 04 December 2017
  11. Statistical inference for the unbalanced two-way error component regression model with errors-in-variables

    In this paper, we investigate the estimation and testing problems of unbalanced two-way error component regression model with errors-in-variables....

    Lili Yue, Gaorong Li, Junhua Zhang in Journal of the Korean Statistical Society
    Article 23 June 2017
  12. A supermartingale argument for characterizing the functional Hill process weak law for small parameters

    The paper deals with the asymptotic laws of functionals of standard exponential random variables. These classes of statistics are closely related to...

    A. M. Fall, G. S. Lo, ... C. H. Ndiaye in Mathematical Methods of Statistics
    Article 01 January 2017
  13. Distribution-free inference in record series

    Let { X t , t = 1} be a time series. A (upper) record is a value X j such that X j > max{ X 1 ,…, X j -1 }. Some popular models in record theory are the...

    Anis S. Hoayek, Gilles R. Ducharme, Zaher Khraibani in Extremes
    Article 01 February 2017
  14. Asymptotic behavior of truncated stochastic approximation procedures

    We study asymptotic behavior of stochastic approximation procedures with three main characteristics: truncations with random moving bounds, a...

    T. Sharia, L. Zhong in Mathematical Methods of Statistics
    Article 01 January 2017
  15. Adaptive fused LASSO in grouped quantile regression

    This article considers the quantile model with grouped explanatory variables. In order to have the sparsity of the parameter groups but also the...

    Article 01 March 2017
  16. Rate of convergence of truncated stochastic approximation procedures with moving bounds

    The paper is concerned with stochastic approximation procedures having three main characteristics: truncations with random moving bounds, a...

    T. Sharia, L. Zhong in Mathematical Methods of Statistics
    Article 01 October 2016
  17. Semi-Parametric Models for Negative Binomial Panel Data

    This paper considers a semi-parametric model for longitudinal negative binomial counts under the assumption that the repeated count responses follow...

    Brajendra C. Sutradhar, Vandna Jowaheer, R. Prabhakar Rao in Sankhya A
    Article 01 August 2016
  18. Least squares estimator for non-ergodic Ornstein-Uhlenbeck processes driven by Gaussian processes

    The statistical analysis for equations driven by fractional Gaussian process (fGp) is relatively recent. The development of stochastic calculus with...

    Mohamed El Machkouri, Khalifa Es-Sebaiy, Youssef Ouknine in Journal of the Korean Statistical Society
    Article 28 December 2015
  19. Anisotropic Brown-Resnick space-time processes: estimation and model assessment

    Spatially isotropic max-stable processes have been used to model extreme spatial or space-time observations. One prominent model is the Brown-Resnick...

    Sven Buhl, Claudia Klüppelberg in Extremes
    Article 04 June 2016
  20. Bivariate zero truncated Poisson INAR(1) process

    In this paper, we propose a new stationary bivariate first order integer-valued autoregressive (BINAR(1)) process with zero truncated Poisson...

    Yan Liu, Dehui Wang, ... Ningzhong Shi in Journal of the Korean Statistical Society
    Article 05 December 2015
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