Estimation and Accuracy after Model Selection.
Estimation and Accuracy after Model Selection.
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DOI:
10.1080/01621459.2013.823775
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发表时间:
2014-07-01
影响因子:
3.7
通讯作者:
Efron B
中科院分区:
文献类型:
--
作者:
Efron B
Classical statistical theory ignores model selection in assessing estimation accuracy. Here we consider bootstrap methods for computing standard errors and confidence intervals that take model selection into account. The methodology involves bagging, also known as bootstrap smoothing, to tame the erratic discontinuities of selection-based estimators. A useful new formula for the accuracy of bagging then provides standard errors for the smoothed estimators. Two examples, nonparametric and parametric, are carried through in detail: a regression model where the choice of degree (linear, quadratic, cubic, …) is determined by the Cp criterion, and a Lasso-based estimation problem.
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影响因子:
3.7
作者:
EFRON, B;FELDMAN, D
通讯作者:
FELDMAN, D
影响因子:
0.8
作者:
HURVICH, CM;TSAI, CL
通讯作者:
TSAI, CL
DOI:
10.1198/016214503000000828
发表时间:
2003-12-01
影响因子:
3.7
作者:
Hjort, NL;Claeskens, G
通讯作者:
Claeskens, G
影响因子:
4.9
作者:
Perlmutter, S;Aldering, G;Couch, WJ
通讯作者:
Couch, WJ
DOI:
10.1214/12-aoas571
发表时间:
2012-10-01
期刊:
The annals of applied statistics
影响因子:
--
作者:
Efron B
通讯作者:
Efron B