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On Stein's method and perturbations [PDF]

open access: greenALEA-Latin American Journal of Probability and Mathematical Statistics, 2007
34 ...
Andrew D. Barbour   +2 more
core   +6 more sources

Stein's method and stochastic orderings [PDF]

open access: greenAdvances in Applied Probability, 2009
A stochastic ordering approach is applied with Stein's method for approximation by the equilibrium distribution of a birth-death process. The usual stochastic order and the more generals-convex orders are discussed. Attention is focused on Poisson and translated Poisson approximations of a sum of dependent Bernoulli random variables, for example,k-runs
Fraser Daly   +2 more
openalex   +6 more sources

The Stein-Dirichlet-Malliavin method [PDF]

open access: yesESAIM: Proceedings and Surveys, 2015
The Stein’s method is a popular method used to derive upper-bounds of distances between probability distributions. It can be viewed, in certain of its formulations, as an avatar of the semi-group or of the smart-path method used ...
Decreusefond L.
doaj   +3 more sources

Stein's method for diffusion approximations [PDF]

open access: bronzeProbability Theory and Related Fields, 1990
Stein's method of obtaining distributional approximations is developed in the context of functional approximation by the Wiener process and other Gaussian processes. An appropriate analogue of the one-dimensional Stein equation is derived, and the necessary properties of its solutions are established.
A. D. Barbour
openalex   +4 more sources

Stein's method for rough paths [PDF]

open access: greenPotential Analysis, 2017
The original Donsker theorem says that a standard random walk converges in distribution to a Brownian motion in the space of continuous functions. It has recently been extended to enriched random walks and enriched Brownian motion. We use the Stein-Dirichlet method to precise the rate of this convergence in the topology of fractional Sobolev spaces.
Laure Coutin, Laurent Decreusefond
openalex   +7 more sources

Self-supervised MRI denoising: leveraging Stein’s unbiased risk estimator and spatially resolved noise maps [PDF]

open access: yesScientific Reports, 2023
Thermal noise caused by the imaged object is an intrinsic limitation in magnetic resonance imaging (MRI), resulting in an impaired clinical value of the acquisitions.
Laura Pfaff   +8 more
doaj   +2 more sources

Automated Parameter Selection for Accelerated MRI Reconstruction via Low-Rank Modeling of Local k-Space Neighborhoods [PDF]

open access: yesZeitschrift für Medizinische Physik, 2023
Purpose: Image quality in accelerated MRI rests on careful selection of various reconstruction parameters. A common yet tedious and error-prone practice is to hand-tune each parameter to attain visually appealing reconstructions.
Efe Ilicak   +2 more
doaj   +2 more sources

Orthogonal Polynomials in Stein's Method [PDF]

open access: bronzeJournal of Mathematical Analysis and Applications, 2001
The paper systematically develops a relationship between the classical families of orthogonal polynomials and Stein's method as applied to the distributions in the Pearson and Ord families, that was also discussed by \textit{P. Diaconis} and \textit{S. Zabell} [Stat. Sci. 6, No. 3, 284-302 (1991)].
Wim Schoutens
openalex   +2 more sources

Stein's Method and Birth-Death Processes [PDF]

open access: bronzeThe Annals of Probability, 2001
The representation of a distribution \(Q\) on \(\mathbb{Z}_+\) as the equilibrium distribution of a birth and death process allows a particular realization of Stein's method for \(Q\). The probabilistic argument of \textit{A. Xia} [J. Appl. Probab. 36, No. 1, 287-290 (1999; Zbl 0942.60006)] is extended to yield bounds for the resulting `Stein factors':
Timothy C. Brown, Aihua Xia
openalex   +5 more sources

On Stein factors in Stein's method for normal approximation [PDF]

open access: greenStatistics & Probability Letters
Building on the rather large literature concerning the regularity of the solution of the standard normal Stein equation, we provide a complete description of the best possible uniform bounds for the derivatives of the solution of the standard normal Stein equation when the test functions belong to the class of real-valued functions whose $k$-th order ...
Robert E. Gaunt
openalex   +4 more sources

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