Results 21 to 30 of about 18,044 (270)

Mixture of linear experts model for censored data: A novel approach with scale-mixture of normal distributions [PDF]

open access: yesComputational Statistics & Data Analysis, 2021
21 pages,
Elham Mirfarah   +2 more
openaire   +4 more sources

Inference with normal-gamma prior distributions in regression problems [PDF]

open access: yes, 2010
This paper considers the effects of placing an absolutely continuous prior distribution on the regression coefficients of a linear model. We show that the posterior expectation is a matrix-shrunken version of the least squares estimate where the ...
Griffin, Jim E., Brown, Philip J.
core   +1 more source

mixsmsn: Fitting Finite Mixture of Scale Mixture of Skew-Normal Distributions [PDF]

open access: yesJournal of Statistical Software, 2013
We present the R package mixsmsn, which implements routines for maximum likeli- hood estimation (via an expectation maximization EM-type algorithm) in finite mixture models with components belonging to the class of scale mixtures of the skew-normal distribution, which we call the FMSMSN models.
Prates, Marcos Oliveira   +2 more
openaire   +3 more sources

Threshold Stochastic Volatility Models with Heavy Tails: A Bayesian Approach

open access: yesEconomía, 2019
This paper extends the threshold stochastic volatility (THSV) model specification proposed in So et al. (2002) and Chen et al. (2008) by incorporating thick-tails in the mean equation innovation using the scale mixture of normal distributions (SMN).
Carlos A. Abanto-Valle   +1 more
doaj   +1 more source

Robust mixture modeling based on scale mixtures of skew-normal distributions

open access: yesComputational Statistics & Data Analysis, 2010
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Rodrigo M. Basso   +3 more
openaire   +1 more source

Bayesian Nonparametric Modelling of the Return Distribution with Stochastic Volatility [PDF]

open access: yes, 2011
This paper presents a method for Bayesian nonparametric analysis of the return distribution in a stochastic volatility model. The distribution of the logarithm of the squared return is flexibly modelled using an infinite mixture of Normal distributions ...
Jim E. Griffin   +3 more
core   +1 more source

Real-time solar image classification: Assessing spectral, pixel-based approaches

open access: yesJournal of Space Weather and Space Climate, 2019
In order to utilize solar imagery for real-time feature identification and large-scale data science investigations of solar structures, we need maps of the Sun where phenomena, or themes, are labeled.
Hughes J. Marcus   +5 more
doaj   +1 more source

Evaluation of fecal mRNA reproducibility via a marginal transformed mixture modeling approach

open access: yesBMC Bioinformatics, 2010
Background Developing and evaluating new technology that enables researchers to recover gene-expression levels of colonic cells from fecal samples could be key to a non-invasive screening tool for early detection of colon cancer.
Davidson Laurie A   +5 more
doaj   +1 more source

A normal scale mixture representation of the logistic distribution [PDF]

open access: yesStatistics & Probability Letters, 1991
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

Likelihood Inference of Nonlinear Models Based on a Class of Flexible Skewed Distributions

open access: yesAbstract and Applied Analysis, 2014
This paper deals with the issue of the likelihood inference for nonlinear models with a flexible skew-t-normal (FSTN) distribution, which is proposed within a general framework of flexible skew-symmetric (FSS) distributions by combining with skew-t ...
Xuedong Chen   +2 more
doaj   +1 more source

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