3 papers
math.OC2026
Projection-Free Algorithms for Minimax Problems
Khanh-Hung Giang-Tran, Soroosh Shafiee, Nam Ho-Nguyen
This paper addresses constrained smooth saddle-point problems in settings where projection onto the feasible sets is computationally expensive. We bridge the gap between projection…
math.OC2025
Convergence, Duality and Well-Posedness in Convex Bilevel Optimization
Khanh-Hung Giang-Tran, Nam Ho-Nguyen, Fatma Kılınç-Karzan +1
We consider the convex bilevel optimization problem, also known as simple bilevel programming. There are two challenges in solving convex bilevel optimization problems. Firstly, st…
math.OC2025
Conditional Gradient Methods with Standard LMO for Stochastic Simple Bilevel Optimization
Khanh-Hung Giang-Tran, Soroosh Shafiee, Nam Ho-Nguyen
We propose efficient methods for solving stochastic simple bilevel optimization problems with convex inner levels, where the goal is to minimize an outer stochastic objective funct…