Results 81 to 90 of about 483 (131)

MODIFIED BRANCHING PROCESS AND SADDLEPOINT APPROXIMATIONS

open access: yes, 2020
This article presents a brief on using a saddlepoint approximations technique to solve some branching process problems; this method of approximation provides a good understanding of branching process behaviors such as probability density, mass function ...
ALMUTAIRI, ALYA
core  

Tail Exactness of Multivariate Saddlepoint Approximations

open access: yes, 2007
We consider a log-concave density f in R m satisfying certain weak conditions, particularly on the Hessian matrix of \Gamma log f . For such a density, we prove tail exactness of the multivariate saddlepoint approximation. The proof is based on a local
O.E. Barndorff-Nielsen, C. Klüppelberg
core  

Empirical saddlepoint approximations of the Studentized ratio and regression estimates for finite populations

open access: yes
We obtain saddlepoint approximations for tail probabilities of the Studentized ratio and regression estimates of the population mean for a simple random sample taken without replacement from a finite population.
Agho, Kingsley, Dai, Wen, Robinson, John
core  

Evaluating the Anderson-Darling Distribution

open access: yes
Except for n = 1, only the limit as n approaches infinity for the distribution of the Anderson-Darling test for uniformity has been found, and that in so complicated a form that published values for a few percentiles had to be determined by numerical ...
George Marsaglia, John Marsaglia
core  

Robust tests based on dual divergence estimators and saddlepoint approximations

open access: yes
This paper is devoted to robust hypothesis testing based on saddlepoint approximations in the framework of general parametric models. As is known, two main problems can arise when using classical tests. First, the models are approximations of reality and
Toma, Aida, Leoni-Aubin, Samuela
core  

A Comparison of Saddlepoint Approximations for Marginal Distributions

open access: yes, 1997
We discuss some recent (nonparametric) approximations of tail probabilities of marginal distributions. They are based on saddlepoint techniques and have an error of order n-1.
Ronchetti, Elvezio
core  

An evaluation of saddlepoint approximations in the generalized linear model

open access: yes, 1996
Thesis (Ph. D.)--University of Washington, 1996Higher order asymptotic methods based on the saddlepoint approximation to a density provide fast and accurate approximate inference in a variety of situations.
Platt, Robert William, 1968-
core  

Uniformity of Double Saddlepoint Conditional Probability Approximations

open access: yes
This paper presents results showing that the error involved in using the double saddlepoint distribution function approximations of Skovgaard (1987,J. Appl. Probab.24875-887) are uniformly bounded.
Kolassa, John E.
core  

General saddlepoint approximations of marginal densities and tail probabilities

open access: yes, 2009
Saddlepoint approximations of marginal densities and tail probabilities of general nonlinear statistics are derived. They are based on the expansion of the statistic up to the second order.
Ronchetti, Elvezio   +2 more
core  

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