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stat.ML2026
High-dimensional learning dynamics of multi-pass Stochastic Gradient Descent in multi-index models
Zhou Fan, Leda Wang
We study the learning dynamics of a multi-pass, mini-batch Stochastic Gradient Descent (SGD) procedure for empirical risk minimization in high-dimensional multi-index models with i…
stat.ML2024★ 1 cited
Nonlinear spiked covariance matrices and signal propagation in deep neural networks
Zhichao Wang, Denny Wu, Zhou Fan
Many recent works have studied the eigenvalue spectrum of the Conjugate Kernel (CK) defined by the nonlinear feature map of a feedforward neural network. However, existing results…