3 papers
math.OC2026
Stochastic Dynamic Barrier Perturbed Gradient Methods for Nonconvex Simple Bilevel Optimization
Mohammad Mahdi Ahmadi, Jincheng Cao, Aryan Mokhtari +1
We study stochastic simple bilevel optimization with smooth, possibly nonconvex upper- and lower-level objectives accessed only through stochastic gradient oracles. A key challenge…
math.OC2026
On the Analysis of Misspecified Variational Inequalities with Nonlinear Constraints
Novel Kumar Dey, Mohammad Mahdi Ahmadi, Erfan Yazdandoost Hamedani +1
In this paper, we study a class of misspecified variational inequalities (VIs) where both the monotone operator and nonlinear convex constraints depend on an unknown parameter lear…
cs.LG2025
Simultaneous Learning and Optimization via Misspecified Saddle Point Problems
Mohammad Mahdi Ahmadi, Erfan Yazdandoost Hamedani
We study a class of misspecified saddle point (SP) problems, where the optimization objective depends on an unknown parameter that must be learned concurrently from data. Unlike ex…