Tag: spike

Risk Phase Transitions in Spiked Regression: Alignment Driven Benign and Catastrophic Overfitting arXiv:2510.01414v1 Announce Type: new Abstract: This paper analyzes the generalization error of minimum-norm interpolating solutions in linear regression using spiked covariance data models. The paper characterizes how varying spike strengths and target-spike alignments can affect risk, especially in overparameterized settings. The study presents…