Bayesian inference for joint location and scale nonlinear models with skew-normal errors

Bayesian inference for joint location and scale nonlinear models with skew-normal errors
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具有偏斜正态误差的关节位置和尺度非线性模型的贝叶斯推理

DOI:
10.1080/03610918.2014.977913
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发表时间:
2017-01
影响因子:
0.9
通讯作者:
Zhang, Zhongzhan
Zhang, Zhongzhan
中科院分区:
数学4区
文献类型:
--
作者:
Xu, Dengke;Zhang, Zhongzhan

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摘要 当所考虑的数据集涉及不对称结果时,具有偏态正态误差的回归模型为普通正态回归模型提供了有用的扩展。在本文中,我们探索使用马尔可夫链蒙特卡罗 (MCMC) 方法来开发具有偏斜法向误差的关节位置和尺度非线性模型的贝叶斯分析,该模型放宽了正态性假设,并将正常模型作为一种特殊情况。这类分布的主要优点是它们具有良好的分层表示,允许实现 MCMC 方法来模拟来自联合后验分布的样本。最后,使用模拟研究和实际例子来说明所提出的方法。
ABSTRACT A regression model with skew-normal errors provides a useful extension for ordinary normal regression models when the dataset under consideration involves asymmetric outcomes. In this article, we explore the use of Markov Chain Monte Carlo (MCMC) methods to develop a Bayesian analysis for joint location and scale nonlinear models with skew-normal errors, which relax the normality assumption and include the normal one as a special case. The main advantage of these class of distributions is that they have a nice hierarchical representation that allows the implementation of MCMC methods to simulate samples from the joint posterior distribution. Finally, simulation studies and a real example are used to illustrate the proposed methodology.
DOI: 10.1016/b978-0-12-809633-8.20361-0
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