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math.OC2025
Efficient Curvature-Aware Hypergradient Approximation for Bilevel Optimization
Youran Dong, Junfeng Yang, Wei Yao +1
Bilevel optimization is a powerful tool for many machine learning problems, such as hyperparameter optimization and meta-learning. Estimating hypergradients (also known as implicit…
math.OC2025
A Provably Convergent Plug-and-Play Framework for Stochastic Bilevel Optimization
Tianshu Chu, Dachuan Xu, Wei Yao +2
Bilevel optimization has recently attracted significant attention in machine learning due to its wide range of applications and advanced hierarchical optimization capabilities. In…
cs.LG2025
qNBO: quasi-Newton Meets Bilevel Optimization
Sheng Fang, Yong-Jin Liu, Wei Yao +2
Bilevel optimization, addressing challenges in hierarchical learning tasks, has gained significant interest in machine learning. The practical implementation of the gradient descen…