Cited by 7,470Statistical Methods and InferenceAdvanced Statistical Methods and ModelsSparse and Compressive Sensing Techniques

The adaptive lasso and its oracle properties

Zou, Hui·2006·Journal of the American Statistical Association

Abstract

The lasso is a popular technique for simultaneous estimation and variable selection. Lasso variable selection has been shown to be consistent under certain conditions. In this work we derive a necessary condition for the lasso variable selection to be consistent. Consequently, there exist certain scenarios where the lasso is inconsistent for variable selection. We then propose a new version of the lasso, called the adaptive lasso, where adaptive weights are used for penalizing different coefficients in the ℓ1 penalty. We show that the adaptive lasso enjoys the oracle properties; namely, it performs as well as if the true underlying model were given in advance. Similar to the lasso, the adaptive lasso is shown to be near-minimax optimal. Furthermore, the adaptive lasso can be solved by the same efficient algorithm for solving the lasso. We also discuss the extension of the adaptive lasso in generalized linear models and show that the oracle properties still hold under mild regularity conditions. As a byproduct of our theory, the nonnegative garotte is shown to be consistent for variable selection.

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Crossref · 10.1198/016214506000000735

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Authors
Zou, H.
Affiliations
University of Minnesota (US)
Corresponding author
Zou, Hui
Venue
Journal of the American Statistical Association
Published
2006-12-01
Volume
101
Issue
476
Pages
1418-1429
ISSN
  • 0162-1459 (ISSN-L)
  • 1537-274X
OpenAlex
W2020925091
Cited by
7,470
References
23
Citations by year
2026: 324 · 2025: 476 · 2024: 474 · 2023: 454 · 2022: 567 · 2021: 639 · 2020: 528 · 2019: 548 · 2018: 473 · 2017: 443 · 2016: 416 · 2015: 388 · 2014: 385 · 2013: 361 · 2012: 304
FWCI
76.03
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of the American Statistical Association (publishedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
Topics
  • Physical Sciences › Mathematics › Statistics and Probability › Statistical Methods and Inference
  • Physical Sciences › Mathematics › Statistics and Probability › Advanced Statistical Methods and Models
  • Physical Sciences › Engineering › Computational Mechanics › Sparse and Compressive Sensing Techniques
Keywords
adaptive LASSO, LASSO, feature selection, oracle property, consistency, adaptive weighting, l1 penalty, generalized linear models

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