Persistence in high-dimensional linear predictor selection and the virtue of overparametrization

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Summary

Under various sparsity assumptions on the optimal predictor there is “asymptotically no harm” in introducing many more explanatory variables than observations, and such practice can be beneficial in comparison with a procedure that screens in advance a small subset of explanatory variables.

Type
article
Published
2004-12-01
Cited by
379
References
24
Access
Open access

Keywords

Mathematics, Lasso (programming language), Independent and identically distributed random variables, Combinatorics, Set (abstract data type)

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