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Author

Ahmet Alacaoglu

3 papers indexed here

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#machine learning Conference Feb 2024

Revisiting Inexact Fixed-Point Iterations for Min-Max Problems: Stochasticity and Structured Nonconvexity

This work provides a refined analysis for inexact Halpern iteration that relaxes the required inexactness level to improve some state-of-the-art complexity results even for constrained stochastic convex-concave min-max problems.

Ahmet Alacaoglu, Donghwan Kim, Stephen J. Wright · 12 citations · ⚡2
#machine learning Preprint Sep 2026

Improving the Last-Iterate Guarantees of Anytime Algorithms for Stochastic Monotone Variational Inequalities

We analyze a stochastic algorithm with Halpern-type anchoring for constrained convex-concave problems and monotone variational inequalities. This single-loop and single-call algorithm uses one unbiased sample of the gradient operator at every iteration, to be applicable to monotone games with noisy feedback. With $t$ d...

Jun-Hyun Kim, Ahmet Alacaoglu · 1 citation
#machine learning Preprint Sep 2026

How to Make the Gradient Mapping Small for Constrained Stochastic Min-Max Problems and Beyond

This work studies the stochastic first-order oracle complexity for constrained or regularized convex-concave min-max optimization and stochastic monotone variational inequalities and extends to prove the same complexity for problems without the bounded variance, by using the Blum-Gladyshev assumption.

Ahmet Alacaoglu · 1 citation

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