Experience

 
 
 
 
 

(tenured) Associate Professor

Academy of Mathematics and Systems Science, Chinese Academy of Sciences

Apr 2025 – Present Beijing, China
Academic staff of ICMSEC
 
 
 
 
 

(tenure-track) Associate Professor

Academy of Mathematics and Systems Science, Chinese Academy of Sciences

Sep 2022 – Mar 2025 Beijing, China
Academic staff of LSEC and ICMSEC
 
 
 
 
 

Postdoc

University of Münster

Sep 2021 – Aug 2022 Münster, Germany
Host: Benedikt Wirth
 
 
 
 
 

Postdoc

UCLouvain

Sep 2019 – Aug 2021 Louvain-la-Neuve, Belgium
Host: P.-A. Absil

Publications

A full list on Google Scholar >>

Refereed papers & preprints

Distributed retraction-free and communication-efficient optimization on the Stiefel manifold. Proceedings of the 42st International Conference on Machine Learning (ICML 2025), (2025), accepted.

Preprint

Optimization on product manifolds under a preconditioned metric. SIAM Journal on Matrix Analysis and Applications, (2025), accepted.

Code Preprint Slides

Riemannian optimization for Holevo capacity. 2025 IEEE International Symposium on Information Theory (ISIT), (2025), accepted.

Code Preprint

First-order methods on bounded-rank tensors converging to stationary points. arXiv:2503.04523, (2025).

Code Preprint

A space-decoupling framework for optimization on bounded-rank matrices with orthogonally invariant constraints. arXiv:2501.13830, (2025).

Code Preprint

LancBiO: dynamic Lanczos-aided bilevel optimization via Krylov subspace. The 13th International Conference on Learning Representations (ICLR 2025), (2025), accepted.

Code Preprint

Bilevel reinforcement learning via the development of hyper-gradient without lower-level convexity. The 28th International Conference on Artificial Intelligence and Statistics (AISTATS 2025), (2025), accepted.

Preprint

Low-rank optimization on Tucker tensor varieties. Mathematical Programming, (2024), accepted.

DOI Code Preprint Slides

Infeasible deterministic, stochastic, and variance-reduction algorithms for optimization under orthogonality constraints. Journal of Machine Learning Research, 25(389) (2024), 1–38.

DOI Code Preprint Slides

Desingularization of bounded-rank tensor sets. arXiv:2411.14093, (2024).

Code Preprint

Symplectic Stiefel manifold: tractable metrics, second-order geometry and Newton's methods. arXiv:2406.14299, (2024).

Preprint

Optimization without retraction on the random generalized Stiefel manifold. Proceedings of the 41st International Conference on Machine Learning (ICML 2024), PMLR 235 (2024), 49226–49248.

DOI Code Preprint Slides

Riemannian preconditioned algorithms for tensor completion via tensor ring decomposition. Computational Optimization and Applications, 88 (2024), 443–468.

DOI Code Preprint

Optimization on the symplectic Stiefel manifold: SR decomposition-based retraction and applications. Linear Algebra and Its Applications, 682 (2024), 50–85.

DOI Code Preprint

Alternating minimization algorithms for graph regularized tensor completion. arXiv:2008.12876, (2023).

Code Preprint

Optimization flows landing on the Stiefel manifold. 25th IFAC Symposium on Mathematical Theory of Networks and Systems (MTNS 2022), IFAC-PapersOnLine, 55-30 (2022), 25–30.

DOI Preprint Slides

On the analysis of optimization with fixed-rank matrices: a quotient geometric view. arXiv:2203.06765, (2022).

Preprint

An orthogonalization-free parallelizable framework for all-electron calculations in density functional theory. SIAM Journal on Scientific Computing, 44-3 (2022), B723–B745.

DOI Preprint

New Riemannian preconditioned algorithms for tensor completion via polyadic decomposition. SIAM Journal on Matrix Analysis and Applications, 43-2 (2022), 840–866.

DOI Code Preprint

A Riemannian rank-adaptive method for low-rank matrix completion. Computational Optimization and Applications, 81 (2022), 67–90.

DOI Code Preprint

Computing symplectic eigenpairs of symmetric positive-definite matrices via trace minimization and Riemannian optimization. SIAM Journal on Matrix Analysis and Applications, 42-4 (2021), 1732–1757.

DOI Code Preprint

Geometry of the symplectic Stiefel manifold endowed with the Euclidean metric. Geometric Science of Information: 5th International Conference (GSI 2021), Lecture Notes in Computer Science, 12829 (2021), 789–796.

DOI Code Preprint

Riemannian optimization on the symplectic Stiefel manifold. SIAM Journal on Optimization, 31-2 (2021), 1546–1575.

DOI Code Preprint

Multipliers correction methods for optimization problems over the Stiefel manifold. CSIAM Transactions on Applied Mathematics, 2-3 (2021), 508–531.

DOI Preprint

Parallelizable algorithms for optimization problems with orthogonality constraints. SIAM Journal on Scientific Computing, 41-3 (2019), A1949–A1983.

DOI Code Preprint

A new first-order algorithmic framework for optimization problems with orthogonality constraints. SIAM Journal on Optimization, 28-1 (2018), 302–332.

DOI Code Preprint

First-order algorithms for optimization problems with orthogonality constraints. OR Transactions (in Chinese), 21-4 (2017), 57–68.

DOI

On the Łojasiewicz exponent of the quadratic sphere constrained optimization problem. arXiv:1611.08781, (2016).

Preprint

Thesis

Bin Gao, Optimization with Orthogonality Constraints: Theory, Algorithms and Applications, Ph.D. thesis, University of Chinese Academy of Sciences (2019, in Chinese). PDF Slides

Research

Collaborators & students

Long-term collaborators:

popman group @ AMSS

PhD & students in collaboration
Pengfei Hao 2025.9- from Beijing Normal University
Xinhui Xiong 2024.9- from Wuhan University
Yan Yang (collaborator) 2023.8- from the University of Chinese Academy of Sciences
Renfeng Peng (collaborator) 2022.11- from Tongji University
Postdocs
Zhen Peng 2023.11- PhD from Beihang University

Selected presentations

Date Conference Place
2024.06 The 21st EUROPT Conference on Advances in Continuous Optimization (EUROPT 2024) Lund, Sweden
2024.05 SIAM Conference on Applied Linear Algebra (LA24) Paris, France
2023.09 Autumn School on Control of Dynamical Systems and Nonlinear Optimization Hanoi, Vietnam
2023.08 10th International Congress on Industrial and Applied Mathematics (ICIAM 2023) Tokyo, Japan
2021.07 5th conference on Geometric Science of Information (GSI’21) Paris, France
2018.07 The 23nd International Symposium on Mathematical Programming (ISMP 2018) Bordeaux, France
2016.06 The 11th East Asia SIAM Conference (EASIAM2016) Macao, China

Academic visits

Duration Place Host
2023.09.07-09.22 Vietnam Institute for Advanced Study in Mathematics, Hanoi, Vietnam VIASM
2019.07.20-08.18 University of Macau, Macau Guanghui Hu

Selected awards
2021 Zhong Jiaqing Mathematics Award 钟家庆数学奖
2018 Best student paper award of CSIAM 2018
2018 CAS special prize of president scholarship 中科院院长特别奖
2017 National scholarship for doctoral student 国家奖学金 博士
2016 Honor student award of international workshop on modern optimizaion and application

Grants & programs

As the PI
2023.12-2026.12 National High-level Young Talents Program 国家海外高层次人才计划
2023.06-2025.05 National Science and Technology Major Project
2023.02-2025.12 Talents Program of the Chinese Academy of Sciences 中科院海外高层次人才计划
2023.01-2025.12 Young Elite Scientist Sponsorship Program by CAST 中国科协青年人才托举工程
As a member
2023.12-2028.12 National Key R&D Program of China

Software

*
All Orthogonality constraints Symplectic Stiefel manifold Low rank

A Riemannian Rank-Adaptive Method for low-rank matrix completion
MATLAB Code Reference

Symplectic eigenvalue problem via trace minimization and Riemannian optimization
MATLAB Code Reference

Riemannian optimization on the symplectic Stiefel manifold
MATLAB Code Reference

Parallelizable Column-wise Augmented Lagrangian approaches for optimization with orthogonality constraints
MATLAB Code Reference

A First-Order Framework for optimization problems with orthogonality constraints.
MATLAB Code Reference

Contact

  • gaobin (.a.t.) lsec.cc.ac.cn
  • Office: (+86)10-82541028
  • Office: LanBai Building - 218, No.55, ZhongGuanCun East Road, Beijing 100190, China