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Showing 1 to 3 of 3 for “"Polya tree"”.
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Applications and Computation of Stateful Polya Trees
<p>Polya trees are a class of nonparametric priors on distributions which are able to model absolutely continuous distributions directly, rather than modeling a discrete distribution over parameters of a mixing kernel to obtain an absolutely continuous distribution. The Polya tree discretizes the …
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Bayesian Nonparametric Models and Tests for Association in Survival Data
… normal, or log-logistic, specifically the Polya tree prior and a novel transformed Bernstein polynomial prior. Both priors start from an initial parametric model, but then allow data to add details that deviate from the parametric family; thus both priors blend the merits of parametric and …
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Tree-based Methods for Learning Probability Distributions
… and mainly discussed herein are two types of new tree-based methods: a single-tree method and an ensemble method. The new single tree method, the main topic of Chapter 2, is introduced by constructing a generalized Polya tree process, that is, a new Bayesian nonparametric model, equipped with a …