Surprises in High-Dimensional Ridgeless Least Squares Interpolation

19 Mar 2019Trevor HastieAndrea MontanariSaharon RossetRyan J. Tibshirani

Interpolators---estimators that achieve zero training error---have attracted growing attention in machine learning, mainly because state-of-the art neural networks appear to be models of this type. In this paper, we study minimum $\ell_2$ norm ("ridgeless") interpolation in high-dimensional least squares regression... (read more)

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