Rufeng Xiao

2 accepted papers

2025

An Adaptive Algorithm for Bilevel Optimization on Riemannian Manifolds

NeurIPS 2025poster

Existing methods for solving Riemannian bilevel optimization (RBO) problems require prior knowledge of the problem's first- and second-order information and curvature parameter of the Riemannian manifold to determine step sizes, which poses practical limitations when these parameters are unknown or…

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2023

A Unified Framework for Rank-based Loss Minimization

Rufeng Xiao, Yuze Ge, Rujun Jiang, Yifan Yan

NeurIPS 2023poster

The empirical loss, commonly referred to as the average loss, is extensively utilized for training machine learning models. However, in order to address the diverse performance requirements of machine learning models, the use of the rank-based loss is prevalent, replacing the empirical loss in many…

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