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math.NA2026
Minimax-Optimal Early Stopping for Continuous-Time SGD via the Discrepancy Principle
Tim Jahn, Loucas Pillaud-Vivien, Adrien Schertzer
We study early stopping for a continuous-time model of stochastic gradient descent (SGD) in ill-posed linear inverse problems. We consider an a posteriori stopping rule based on th…
math.NA2026
On the convergence of an adaptive denoiser driven iterative regularization with early stopping
Harshit Bajpai, Ankik Kumar Giri, Tim Jahn +1
Solving inverse problems requires appropriate regularization techniques to ensure well-posedness and stability. In recent years, denoiser-driven methods have emerged as effective r…