A Simple Sampler for the Horseshoe Estimator

A Simple Sampler for the Horseshoe Estimator
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DOI:
10.1109/lsp.2015.2503725
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发表时间:
2016-01-01
影响因子:
3.9
通讯作者:
Schmidt, Daniel F.
Schmidt, Daniel F.
中科院分区:
工程技术2区
文献类型:
--
作者:
Makalic, Enes;Schmidt, Daniel F.

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在本文中,我们推导出一个简单的贝叶斯抽样线性回归与马蹄层次。马蹄模型的一个新的解释,并扩展逻辑回归和替代层次结构,如马蹄+,进行了讨论。由于所提出的层次结构的共轭性,Chib算法可以被用来容易地计算模型的边际似然。
In this note we derive a simple Bayesian sampler for linear regression with the horseshoe hierarchy. A new interpretation of the horseshoe model is presented, and extensions to logistic regression and alternative hierarchies, such as horseshoe+, are discussed. Due to the conjugacy of the proposed hierarchy, Chib's algorithm may be used to easily compute the marginal likelihood of the model.