V2EX reml

REML

Definition / 释义

REML:受限最大似然(Restricted Maximum Likelihood)的缩写,一种用于估计统计模型(尤其是线性混合效应模型)中方差成分的方法。它通过“扣除”固定效应带来的影响,使方差估计在小样本情境下往往比普通最大似然(ML/MLE)更稳健。(该词也可能在其他领域作为缩写出现,但统计学中最常见。)

Pronunciation / 发音

/r i m l/

Examples / 例句

REML is often used to estimate variance components in mixed models.
REML 常用于混合模型中估计方差成分。

Using REML, the analyst compared random-effects structures and then refit the final model to obtain more reliable variance estimates.
使用 REML,分析者比较了不同的随机效应结构,并在确定最终模型后重新拟合,以获得更可靠的方差估计。

Etymology / 词源

REML 来自短语 Restricted Maximum Likelihood 的首字母缩写。该方法在统计学中与方差成分估计、混合模型的发展密切相关,常被认为由 Patterson & Thompson(1971) 系统提出并推广,用以改进仅用最大似然估计方差时可能出现的偏差问题。

Related Words / 相关词

Literary Works / 文学与作品

  • Mixed-Effects Models in S and S-PLUS(Pinheiro & Bates)讨论混合效应模型拟合时常涉及 REML/ML 的选择
  • Linear Mixed Models for Longitudinal Data(Verbeke & Molenberghs)在纵向数据的混合模型框架中使用并比较 REML
  • Data Analysis Using Regression and Multilevel/Hierarchical Models(Gelman & Hill)多层/层级模型分析中会提到 REML 等估计思想
  • The Analysis of Linear Mixed Models(相关混合模型专著中常见条目)REML 作为方差成分估计的标准方法之一频繁出现
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