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- W4280491872 abstract "Estimating the model evidence - or mariginal likelihood of the data - is a notoriously difficult task for finite and infinite mixture models and we reexamine here different Monte Carlo techniques advocated in the recent literature, as well as novel approaches based on Geyer (1994) reverse logistic regression technique, Chib (1995) algorithm, and Sequential Monte Carlo (SMC). Applications are numerous. In particular, testing for the number of components in a finite mixture model or against the fit of a finite mixture model for a given dataset has long been and still is an issue of much interest, albeit yet missing a fully satisfactory resolution. Using a Bayes factor to find the right number of components K in a finite mixture model is known to provide a consistent procedure. We furthermore establish the consistence of the Bayes factor when comparing a parametric family of finite mixtures against the nonparametric 'strongly identifiable' Dirichlet Process Mixture (DPM) model." @default.
- W4280491872 created "2022-05-22" @default.
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- W4280491872 date "2022-05-11" @default.
- W4280491872 modified "2023-09-26" @default.
- W4280491872 title "Evidence estimation in finite and infinite mixture models and applications" @default.
- W4280491872 doi "https://doi.org/10.48550/arxiv.2205.05416" @default.
- W4280491872 hasPublicationYear "2022" @default.
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