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Last Layer Marginal Likelihood for Invariance Learning [PDF]

open access: yes, 2022
Data augmentation is often used to incorporate inductive biases into models. Traditionally, these are hand-crafted and tuned with cross validation. The Bayesian paradigm for model selection provides a path towards end-to-end learning of invariances using
Jørgensen, Martin   +3 more
core  

Gaussian Copula Regression in R

open access: yesJournal of Statistical Software, 2017
This article describes the R package gcmr for fitting Gaussian copula marginal regression models. The Gaussian copula provides a mathematically convenient framework to handle various forms of dependence in regression models arising, for example, in time ...
Guido Masarotto, Cristiano Varin
doaj   +1 more source

A Comparison of Limited Information Estimation Methods for the Two-Parameter Normal-Ogive Model with Locally Dependent Items

open access: yesStats
The two-parameter normal-ogive (2PNO) model is one of the most popular item response theory (IRT) models for analyzing dichotomous items. Consistent parameter estimation of the 2PNO model using marginal maximum likelihood estimation relies on the local ...
Alexander Robitzsch
doaj   +1 more source

Marginal Likelihoods in Phylogenetics: A Review of Methods and Applications

open access: yesSystematic Biology, 2019
AbstractBy providing a framework of accounting for the shared ancestry inherent to all life, phylogenetics is becoming the statistical foundation of biology. The importance of model choice continues to grow as phylogenetic models continue to increase in complexity to better capture micro- and macroevolutionary processes.
Oaks, Jamie R   +3 more
openaire   +5 more sources

Marginal Likelihood Estimation with the Cross-Entropy Method [PDF]

open access: yesEconometric Reviews, 2012
We consider an adaptive importance sampling approach to estimating the marginal likelihood, a quantity that is fundamental in Bayesian model comparison and Bayesian model averaging. This approach is motivated by the difficulty of obtaining an accurate estimate through existing algorithms that use Markov chain Monte Carlo (MCMC) draws, where the draws ...
Chan, Chi Chun (Joshua), Eisenstat, Eric
openaire   +6 more sources

Recursive pathways to marginal likelihood estimation with prior-sensitivity analysis [PDF]

open access: yes, 2014
We investigate the utility to computational Bayesian analyses of a particular family of recursive marginal likelihood estimators characterized by the (equivalent) algorithms known as "biased sampling" or "reverse logistic regression" in the statistics ...
Cameron, Ewan, Pettitt, Anthony N.
core   +1 more source

EPSOM-Hyb: A General Purpose Estimator of Log-Marginal Likelihoods with Applications in Probabilistic Graphical Models

open access: yesAlgorithms
We consider the estimation of the marginal likelihood in Bayesian statistics, with primary emphasis on Gaussian graphical models, where the intractability of the marginal likelihood in high dimensions is a frequently researched problem.
Eric Chuu   +3 more
doaj   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

open access: yesFEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee   +3 more
wiley   +1 more source

Impacts of prior parameter distributions on Bayesian evaluation of groundwater model complexity

open access: yesWater Science and Engineering, 2018
This study used the marginal likelihood and Bayesian posterior model probability for evaluation of model complexity in order to avoid using over-complex models for numerical simulations.
Saeideh Samani   +6 more
doaj   +1 more source

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