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
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作者:
R. Tibshirani
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.