Efron, Hastie, Johnstone and Tibshirani: least angle regression

What changed

Introduced least angle regression as a model-selection algorithm and showed modifications that efficiently trace lasso and forward-stagewise regression paths.

Scientific scope

The record is the exact 2004 Annals of Statistics paper. The lasso itself, later coordinate-descent algorithms, generalized linear-model extensions and software implementations remain separate.

Evidence

The linked sources identify this contribution and its scope. WRS has not independently reconstructed the scientific claims. The record is the exact 2004 Annals of Statistics paper. The lasso itself, later coordinate-descent algorithms, generalized linear-model extensions and software implementations remain separate.

Contributors

• Bradley Efron · SCIENCE: Named source author of the scoped work; individual effort shares are not measured.
• Trevor Hastie · SCIENCE: Named source author of the scoped work; individual effort shares are not measured.
• Iain Johnstone · SCIENCE: Named source author of the scoped work; individual effort shares are not measured.
• Robert Tibshirani · SCIENCE: Named source author of the scoped work; individual effort shares are not measured.

• Author manuscript for least angle regression
• Crossref record for least angle regression

Provisional WRS assessment, edition 2026-10-16.1. Independent expert calibration is pending. This grade does not certify correctness or assign ownership.

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