Bilevel Reinforcement Learning via the Development of Hyper-gradient without Lower-Level Convexity. - Yan Yang 012; Bin Gao; Ya-xiang Yuan (AISTATS, 2025)

LancBiO: Dynamic Lanczos-aided Bilevel Optimization via Krylov Subspace. - Yan Yang 012; Bin Gao; Ya-xiang Yuan (ICLR, 2025)

A space-decoupling framework for optimization on bounded-rank matrices with orthogonally invariant constraints. - Yan Yang 012; Bin Gao; Ya-xiang Yuan (CoRR, 2025)