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Practical Consequences of the Bias in the Laplace Approximation to Marginal Likelihood for Hierarchical Models [PDF]

open access: yesEntropy
Due to the high dimensional integration over latent variables, computing marginal likelihood and posterior distributions for the parameters of a general hierarchical model is a difficult task.
Subhash R. Lele   +2 more
doaj   +2 more sources

Marginal likelihood estimate comparisons to obtain optimal species delimitations in Silene sect. Cryptoneurae (Caryophyllaceae). [PDF]

open access: yesPLoS ONE, 2014
Coalescent-based inference of phylogenetic relationships among species takes into account gene tree incongruence due to incomplete lineage sorting, but for such methods to make sense species have to be correctly delimited. Because alternative assignments
Zeynep Aydin   +3 more
doaj   +2 more sources

Stepwise Signal Extraction via Marginal Likelihood. [PDF]

open access: yesJ Am Stat Assoc, 2016
This article studies the estimation of a stepwise signal. To determine the number and locations of change-points of the stepwise signal, we formulate a maximum marginal likelihood estimator, which can be computed with a quadratic cost using dynamic programming.
Du C, Kao CM, Kou SC.
europepmc   +4 more sources

On the use of marginal posteriors in marginal likelihood estimation via importance sampling [PDF]

open access: yesComputational Statistics and Data Analysis, 2014
We investigate the efficiency of a marginal likelihood estimator where the product of the marginal posterior distributions is used as an importance-sampling function. The approach is generally applicable to multi-block parameter vector settings, does not require additional Markov Chain Monte Carlo (MCMC) sampling and is not dependent on the type of ...
Konstantinos Perrakis   +2 more
exaly   +5 more sources

On the marginal likelihood and cross-validation [PDF]

open access: yesBiometrika, 2020
SummaryIn Bayesian statistics, the marginal likelihood, also known as the evidence, is used to evaluate model fit as it quantifies the joint probability of the data under the prior. In contrast, non-Bayesian models are typically compared using cross-validation on held-out data, either through $k$-fold partitioning or leave-$p$-out subsampling.
Fong, E, Holmes, CC
openaire   +3 more sources

Parallel power posterior analyses for fast computation of marginal likelihoods in phylogenetics [PDF]

open access: yesPeerJ, 2021
In Bayesian phylogenetic inference, marginal likelihoods can be estimated using several different methods, including the path-sampling or stepping-stone-sampling algorithms.
Sebastian Höhna   +2 more
doaj   +2 more sources

Bayesian Inference for the Loss Models via Mixture Priors

open access: yesRisks, 2023
Constructing an accurate model for insurance losses is a challenging task. Researchers have developed various methods to model insurance losses, such as composite models. Composite models combine two distributions: one for part of the data with small and
Min Deng, Mostafa S. Aminzadeh
doaj   +1 more source

An MM Algorithm for the Frailty-Based Illness Death Model with Semi-Competing Risks Data

open access: yesMathematics, 2022
For analyzing multiple events data, the illness death model is often used to investigate the covariate–response association for its easy and direct interpretation as well as the flexibility to accommodate the within-subject dependence.
Xifen Huang   +4 more
doaj   +1 more source

On Masked Pre-training and the Marginal Likelihood

open access: yesAdvances in Neural Information Processing Systems 36, 2023
Masked pre-training removes random input dimensions and learns a model that can predict the missing values. Empirical results indicate that this intuitive form of self-supervised learning yields models that generalize very well to new domains. A theoretical understanding is, however, lacking.
Moreno Muñoz, Pablo   +2 more
openaire   +5 more sources

Geometric Approach to Analytic Marginalisation of the Likelihood Ratio for Continuous Gravitational Wave Searches

open access: yesUniverse, 2021
The likelihood ratio for a continuous gravitational wave signal is viewed geometrically as a function of the orientation of two vectors; one representing the optimal signal-to-noise ratio, and the other representing the maximised likelihood ratio or F ...
Karl Wette
doaj   +1 more source

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