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arXiv 0906.3935stat.ME
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小样本下的精确参数推断

Accurate Parametric Inference for Small Samples

Alessandra R. Brazzale, Anthony C. Davison

摘要:

我们概述了如何现代似然理论,它提供了基本上是准确的推论,在各种参数统计问题,可能会经常在实践中应用。虽然似然程序的基础上分析渐近近似,本文的重点不是理论,而是实施和应用。数值例子给出了逻辑斯谛回归,非线性模型和线性非正态模型,我们描述了这些类的第三个抽样方法。在逻辑斯谛回归的情况下,我们认为,近似往往比“精确”的程序,即使这些存在更合适。

英文摘要:

We outline how modern likelihood theory, which provides essentially exact inferences in a variety of parametric statistical problems, may routinely be applied in practice. Although the likelihood procedures are based on analytical asymptotic approximations, the focus of this paper is not on theory but on implementation and applications. Numerical illustrations are given for logistic regression, nonlinear models, and linear non-normal models, and we describe a sampling approach for the third of these classes. In the case of logistic regression, we argue that approximations are often more appropriate than `exact' procedures, even when these exist.

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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