Stacked regressions
Stacked regressions
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DOI:
10.1007/bf00117832
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发表时间:
2004
期刊:
影响因子:
7.5
通讯作者:
L. Breiman
中科院分区:
文献类型:
--
作者:
L. Breiman
Stacking regressions is a method for forming linear combinations of different predictors to give improved prediction accuracy. The idea is to use cross-validation data and least squares under non-negativity constraints to determine the coefficients in the combination. Its effectiveness is demonstrated in stacking regression trees of different sizes and in a simulation stacking linear subset and ridge regressions. Reasons why this method works are explored. The idea of stacking originated with Wolpert (1992).