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Bayesian shrinkage in mixture-of-experts models: identifying robust determinants of class membership

A method for implicit variable selection in mixture-of-experts frameworks is proposed.
We introduce a prior structure where information is taken from a set of independent
covariates. Robust class membership predictors are identified using a normal gamma
prior. The resulting model setup is used in a finite mixture of Bernoulli distributions
to find homogenous clusters of women in Mozambique based on their information
sources on HIV. Fully Bayesian inference is carried out via the implementation of a
Gibbs sampler.

Identiferoai:union.ndltd.org:VIENNA/oai:epub.wu-wien.ac.at:6843
Date13 February 2019
CreatorsZens, Gregor
PublisherSpringer
Source SetsWirtschaftsuniversität Wien
LanguageEnglish
Detected LanguageEnglish
TypeArticle, PeerReviewed
Formatapplication/pdf
RightsCreative Commons: Attribution 4.0 International (CC BY 4.0)
Relationhttp://dx.doi.org/10.1007/s11634-019-00353-y, https://www.springer.com/de, http://epub.wu.ac.at/6843/

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