Gibbs Priors for Bayesian Nonparametric Variable Selection with Weak Learners
Gibbs Priors for Bayesian Nonparametric Variable Selection with Weak Learners
复制标题
弱学习者贝叶斯非参数变量选择的吉布斯先验
DOI:
10.1080/10618600.2022.2142594
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发表时间:
2023
影响因子:
2.4
通讯作者:
Du, Junliang
中科院分区:
文献类型:
--
作者:
Linero, Antonio R.;Du, Junliang
We consider the problem of high-dimensional Bayesian nonparametric variable selection using an aggregation of so-called “weak learners.” The most popular variant of this is the Bayesian additive regression trees (BART) model, which is the natural Bayesian analog to boosting decision trees. In this article, we use Gibbs distributions on random partitions to induce sparsity in ensembles of weak learners. Looking at BART as a special case, we show that the class of Gibbs priors includes two recently proposed models—the Dirichlet additive regression trees (DART) model and the spike-and-forest model—as extremal cases, and we show that certain Gibbs priors are capable of achieving the benefits of both the DART and spike-and-forest models while avoiding some of their key drawbacks. We then show the promising performance of Gibbs priors for other classes of weak learners, such as tensor products of spline basis functions. A Pólya Urn scheme is developed for efficient computations. Supplementary materials for this article are available online.
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DOI:
--
发表时间:
2021
期刊:
Handbook of Bayesian Variable Selection
影响因子:
--
作者:
A. Linero;Junliang Du
通讯作者:
Junliang Du
DOI:
10.1080/10618600.2019.1677243
发表时间:
2020-04
影响因子:
2.4
作者:
M. Pratola;H. Chipman;Edward I. George;R. McCulloch
通讯作者:
M. Pratola;H. Chipman;Edward I. George;R. McCulloch
影响因子:
4.5
作者:
Buhlmann, Peter
通讯作者:
Buhlmann, Peter
影响因子:
0.7
作者:
Jeffrey W. Miller
通讯作者:
Jeffrey W. Miller
DOI:
--
发表时间:
2019
期刊:
Proceedings of the 36th International Conference on Machine Learning
影响因子:
--
作者:
Du, Junliang;Linero, Antonio Ricardo
通讯作者:
Linero, Antonio Ricardo