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20232026
most citedPhase transitions for the existence of unregularized M-estimators in single index models

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math.ST2026

Generalization Error Estimation for Primal--Dual Algorithms in Non-Smooth Regression

Kai Tan, Pierre C Bellec

This paper studies trajectory-wise estimation of generalization error for primal--dual algorithms in non-smooth regression. Motivating examples include \(\ell_1\)-penalized least a…