Results 21 to 30 of about 122,222 (300)

bridgesampling: An R Package for Estimating Normalizing Constants

open access: yesJournal of Statistical Software, 2020
Statistical procedures such as Bayes factor model selection and Bayesian model averaging require the computation of normalizing constants (e.g., marginal likelihoods).
Quentin F. Gronau   +2 more
doaj   +1 more source

A topology-marginal composite likelihood via a generalized phylogenetic pruning algorithm

open access: yesAlgorithms for Molecular Biology, 2023
Bayesian phylogenetics is a computationally challenging inferential problem. Classical methods are based on random-walk Markov chain Monte Carlo (MCMC), where random proposals are made on the tree parameter and the continuous parameters simultaneously ...
Seong-Hwan Jun   +8 more
doaj   +1 more source

Outlier-Robust Surrogate Modeling of Ion–Solid Interaction Simulations

open access: yesEntropy, 2023
Data for complex plasma–wall interactions require long-running and expensive computer simulations. Furthermore, the number of input parameters is large, which results in low coverage of the (physical) parameter space.
Roland Preuss, Udo von Toussaint
doaj   +1 more source

Computing expectations and marginal likelihoods for permutations [PDF]

open access: yesComputational Statistics, 2019
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ben Powell, Paul A. Smith
openaire   +4 more sources

A Variant of AIC Based on the Bayesian Marginal Likelihood [PDF]

open access: yesSankhya B, 2018
We propose information criteria that measure the prediction risk of a predictive density based on the Bayesian marginal likelihood from a frequentist point of view. We derive criteria for selecting variables in linear regression models, assuming a prior distribution of the regression coefficients.
Kawakubo, Yuki   +2 more
openaire   +3 more sources

Bayesian Inference for Seasonal ARMA Models [PDF]

open access: yesThe Egyptian Statistical Journal, 1987
An essential ingredient of any time series anatysis is the estimation of the modcl parameters. The main objective of this paper is to develop a convenient Rayesian technique for estimation which can be used to analyze ‘seasonal autoregressive moving ...
Samir Shaarawy, Mohamed Ismail
doaj   +1 more source

Marginalization using the metric of likelihood

open access: yesAIP Conference Proceedings, 2001
Although the likelihood function is normalizeable with respect to the data there is no guarantee that the same holds with respect to the model parameters. This may lead to singularities in the expectation value integral of these parameters, especially if the prior information is not sufficient to take care of finite integral values.
Preuss, R., Dose, V.
  +6 more sources

Logarithmic marginal likelihood of different estimation models. [PDF]

open access: yes, 2023
Logarithmic marginal likelihood of different estimation models.
Jiamu Hu (17334114)
core   +1 more source

A bimatrix variate gamma distribution

open access: yesResults in Applied Mathematics, 2022
In this article, a bimatrix gamma distributions is introduced. Various mathematical properties of the proposed distribution like marginal distributions, expected values, entropies, and moment generating function are derived.
Maryam Rafiei   +4 more
doaj   +1 more source

Improved Laplace approximation for marginal likelihoods

open access: yesElectronic Journal of Statistics, 2016
Statistical applications often involve the calculation of intractable multidimensional integrals. The Laplace formula is widely used to approximate such integrals. However, in high-dimensional or small sample size problems, the shape of the integrand function may be far from that of the Gaussian density, and thus the standard Laplace approximation can ...
RULI, ERLIS   +2 more
openaire   +4 more sources

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