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arXiv 0808.0657stat.ME
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高故障鲁棒多元方法

High-Breakdown Robust Multivariate Methods

Mia Hubert, Peter J. Rousseeuw, Stefan Van Aelst

摘要:

在实践中应用统计方法时,经常会出现一些观察结果偏离通常的假设。然而,许多经典方法对离群值敏感。鲁棒统计的目标是开发一种方法,该方法对数据中任何地方可能出现一个或多个未经宣布的离群值的可能性具有鲁棒性。然后,这些方法允许通过稳健拟合的残差检测离群观测值。我们专注于高故障的方法,它可以处理数据中的离群值的相当大的一部分。我们给出了一个概述最近的高故障强大的方法,如协方差估计,多元和多元回归,判别分析,主成分和多元校正的多元设置。

英文摘要:

When applying a statistical method in practice it often occurs that some observations deviate from the usual assumptions. However, many classical methods are sensitive to outliers. The goal of robust statistics is to develop methods that are robust against the possibility that one or several unannounced outliers may occur anywhere in the data. These methods then allow to detect outlying observations by their residuals from a robust fit. We focus on high-breakdown methods, which can deal with a substantial fraction of outliers in the data. We give an overview of recent high-breakdown robust methods for multivariate settings such as covariance estimation, multiple and multivariate regression, discriminant analysis, principal components and multivariate calibration.

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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