arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2008.10876stat.ME
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基于$L_q$ -Likestrank的重尾误差线性模型正则化方法

Regularization Methods Based on the $L_q$-Likelihood for Linear Models with Heavy-Tailed Errors

Yoshihiro Hirose

摘要:

我们提出了正则化方法的线性模型的基础上的$L_q$ -似然,这是一个推广的对数似然使用幂函数。一些重尾分布被称为$q$ -正态分布。我们发现,所提出的方法线性模型与$q$ -正常的错误与正则化方法,适用于正常的线性模型。所提出的方法工作得很好,效率很高,可以使用现有的软件包进行计算。我们研究所提出的方法,使用数值实验,表明该方法表现良好,即使当错误是重尾。

英文摘要:

We propose regularization methods for linear models based on the $L_q$-likelihood, which is a generalization of the log-likelihood using a power function. Some heavy-tailed distributions are known as $q$-normal distributions. We find that the proposed methods for linear models with $q$-normal errors coincide with the regularization methods that are applied to the normal linear model. The proposed methods work well and efficiently, and can be computed using existing packages. We examine the proposed methods using numerical experiments, showing that the methods perform well, even when the error is heavy-tailed.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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