Bias, Variance and Prediction Error for Classification Rules

Bias, Variance and Prediction Error for Classification Rules
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发表时间:
1996
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通讯作者:
R. Tibshirani
R. Tibshirani
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其他
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作者:
R. Tibshirani

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我们研究了分类规则的偏差和方差的概念。继Efron(1978)之后,我们将预测误差分解为其自然分量。然后,我们推导出这些分量的自举估计,并说明如何在实践中使用它们来描述分类器的错误行为。在此过程中,我们还获得了一个“袋装”分类器误差的自举估计。
We study the notions of bias and variance for classiication rules. Following Efron (1978) we develop a decomposition of prediction error into its natural components. Then we derive bootstrap estimates of these components and illustrate how they can be used to describe the error behaviour of a classiier in practice. In the process we also obtain a bootstrap estimate of the error of a \bagged" classiier.