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变量惩罚效应在贝叶斯分位数回归模型的应用 被引量:2

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摘要 尽管贝叶斯分位数回归方法能够有效克服经济金融数据的尖峰厚尾、结构突变等问题,充分借鉴已有研究成果信息,但是其并不能很好解决多维变量模型的维数灾难问题。为此,文章在贝叶斯分位数回归基础上,结合自适应Lasso变量惩罚作用,构建了基于MH抽样的自适应Lasso惩罚贝叶斯分位数回归模型。通过仿真模拟实验以及MCMC链条检验,证明上述模型具有优良拟合性质,尤其是在小样本情形下。
作者 郭俊峰
出处 《统计与决策》 CSSCI 北大核心 2016年第19期20-22,共3页 Statistics & Decision
基金 国家自然科学基金面上项目(71373219) 国家自然科学基金青年项目(71103150) 中央高校基本科研业务费专项资金资助项目(2013221012)
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参考文献6

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二级参考文献20

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