Results 51 to 60 of about 539,449 (277)

Bayesian model selection and isocurvature perturbations [PDF]

open access: yes, 2005
Present cosmological data are well explained assuming purely adiabatic perturbations, but an admixture of isocurvature perturbations is also permitted. We use a Bayesian framework to compare the performance of cosmological models including isocurvature ...
Beltrán, María   +4 more
core   +2 more sources

Predictive Bayesian Model Selection [PDF]

open access: yesAmerican Journal of Mathematical and Management Sciences, 2011
SYNOPTIC ABSTRACTWe investigate the problem of evaluating the goodness of the predictive distributions of Bayesian models. Recently, deviance information criteria (DIC) has been extensively employed in various study areas to evaluate the Bayesian models, thanks to its simplicity of calculation from the posterior simulation outputs. Unfortunately, it is
openaire   +1 more source

Bayesian Computation and Model Selection Without Likelihoods [PDF]

open access: yesGenetics, 2010
AbstractUntil recently, the use of Bayesian inference was limited to a few cases because for many realistic probability models the likelihood function cannot be calculated analytically. The situation changed with the advent of likelihood-free inference algorithms, often subsumed under the term approximate Bayesian computation (ABC).
Leuenberger, Christoph, Wegmann, Daniel
openaire   +3 more sources

Bayesian Variable Selection for Pareto Regression Models with Latent Multivariate Log Gamma Process with Applications to Earthquake Magnitudes

open access: yesGeosciences, 2019
Generalized linear models are routinely used in many environment statistics problems such as earthquake magnitudes prediction. Hu et al. proposed Pareto regression with spatial random effects for earthquake magnitudes.
Hou-Cheng Yang, Guanyu Hu, Ming-Hui Chen
doaj   +1 more source

Model selection in Medical Research: A simulation study comparing Bayesian Model Averaging and Stepwise Regression

open access: yesBMC Medical Research Methodology, 2010
Background Automatic variable selection methods are usually discouraged in medical research although we believe they might be valuable for studies where subject matter knowledge is limited.
Steineck Gunnar   +3 more
doaj   +1 more source

Bayesian inference with information content model check for Langevin equations [PDF]

open access: yes, 2017
The Bayesian data analysis framework has been proven to be a systematic and effective method of parameter inference and model selection for stochastic processes.
Krog, Jens, Lomholt, Michael A.
core   +2 more sources

Bayesian Variable Selection for Latent Class Models [PDF]

open access: yesBiometrics, 2010
In this article we develop a latent class model with class probabilities that depend on subject-specific covariates. One of our major goals is to identify important predictors of latent classes. We consider methodology that allows estimation of latent classes while allowing for variable selection uncertainty.
Ghosh, Joyee   +2 more
openaire   +3 more sources

Evolutionary dynamics of the chloroplast genome in Daphne (Thymelaeaceae): comparative analysis with related genera and insights into phylogenetics

open access: yesFEBS Open Bio, EarlyView.
Comparative analysis of chloroplast genomes from 14 genera of Thymelaeaceae revealed variation in gene content, ranging from 128 to 142 genes, primarily influenced by IR expansion/contraction events and pseudogenization of ndhF, ndhI, and ndhG. Two large inversions were detected within the large single‐copy region, including a synapomorphic inversion ...
Abdullah   +8 more
wiley   +1 more source

Channel estimation using variational Bayesian learning for multi‐user mmWave MIMO systems

open access: yesIET Communications, 2021
This paper presents a novel variational Bayesian learning‐based channel estimation scheme for hybrid pre‐coding‐employed wideband multiuser millimetre wave multiple‐input multiple‐output communication systems.
Bo Xiao   +4 more
doaj   +1 more source

Bayesian Model Selection Based on Proper Scoring Rules

open access: yes, 2015
Bayesian model selection with improper priors is not well-defined because of the dependence of the marginal likelihood on the arbitrary scaling constants of the within-model prior densities.
Dawid, A. Philip, Musio, Monica
core   +1 more source

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