liuxin-homepage

持之以恒

攀登不止

Persevering timelessly

Ascending ceaselessly

Dr. Xin LIU (刘歆) (1982.8.27 -- )

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An Academic Grandson of Professor Michael J.D. Powell (1936-2015)

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Current Position:

Associate Professor

State Key Laboratory of Scientific and Engineering Computing (LSEC)

Institute of Computational Mathematics and Scientific/Engineering Computing (ICMSEC)

Academy of Mathematics and System Sciences (AMSS)

Chinese Academy of Sciences (CAS)

Email: liuxin at lsec.cc.ac.cn

Tel: (O)+86-10-8254-1041

Web: http://www.cc.ac.cn/staff/liuxin.html

Address: Room 302, LBB, Academy of Mathematics and Systems Science, Chinese Academy of Scienses

55, Zhong Guan Cun East Road, Beijing 100190, China

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Research Interests:

Matrix optimization: matrix decomposition, eigenvalue problems

Data analysis: sparse optimization, distributed optimization

Applications: electronic structure calculation, dynamic data assimilation

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Education:

2004.09-2009.06, Ph.D. Academy of Mathematics and System Sciences, Chinese Academy of Sciences, Beijing, China. Supervisor: Prof. Ya-xiang Yuan

2000.09-2004.06, B.Sc. Department of Scientific and Engineering Computing, School of Mathematics Sciences, Peking University, Beijing, China

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Past Working Experience:

2010.09-2011.08, Visiting scholar, Rice University, Houston, Texas, United States

2009.09-2010.08, Postdoc. Konrad-Zuse-Zentrum für Informationstechnik Berlin(ZIB), Berlin, Germnay

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Selected Experience and Social Activity:

2016.01-, Review Editor of Frontiers in Applied Mathematics and Statistics

2015.09-, Associate Editor of Mathematical Programming Computation

2014.05-, 中国运筹学会数学规划分会理事

2013.01-, 中国运筹学会科普工作委员会秘书长

2012.10, The Young Science Professionals Voluntary Visitor Program of the United States Department of State

2011.12-, 北京运筹学会理事

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Selected Grants:

2015.01-2018.12, 国家自然科学基金面上项目-11471325, 矩阵分解问题的优化算法与理论, 60万, 课题负责人

2012.01-2014.12, 国家自然科学基金青年项目-11101409, 几类矩阵优化问题的算法设计及其理论和应用, 22万元, 课题负责人

2016.01-2018.12, 国家自然科学基金重大研究计划-91530204, 集合变分同化的子空间方法研究, 课题组成员

2015.01-2018.12, 国家自然科学基金国际(地区)合作与交流项目-11461161005, 稀疏优化算法与理论, 课题组成员

2014.01-2018.12, 国家自然科学基金重点项目-11331012, 面向信息技术的优化理论和方法, 课题组成员

2013.12-2016.12, 国家863计划项目-2013AA122902, 被动光学高光谱强度关联成像技术, 课题组成员

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Selected Awards:

2014.12, 中国科学院数学与系统科学研究院陈景润未来之星

2009.07, 中国科学院朱李月华奖学金

2008.09, 中国科学院数学与系统科学研究院院长奖学金特等奖

2008.03, 首届中国科学院博时奖学金

2007.04, Euler Award of Applied Mathematics, Presented by: Swiss State Secretariat for Education and Research

2004.05, 北京大学优秀毕业生

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List of Works:

-- Publications and Preprints

C. Ma, X. Liu and Z. Wen, Globally Convergent Levenberg-Marquardt Method for Phase Retrieval, SIAM Journal on Optimization (under review). [link]

H. Wang, X. Liu, X. Chen and Y. Yuan, SNIG Property of Matrix Low-rank Factorization Model, Mathematical Programming (under review). [link]

Y. Liu, X. Liu and S. Ma, On the non-ergodic convergence rate of an inexact augmented Lagrangian framework for composite convex programming, Mathematical Programming (under review). [link]

C. Chen, M. Li, X. Liu and Y. Ye, Extended ADMM and BCD for Nonseparable Convex Minimization Models with Quadratic Coupling Terms: Convergence Analysis and Insights, Mathematical Programming (under review). [link]

Z. Wen. X. Peng, X. Liu, X. Bai and X. Sun, Asset Allocation under the Basel Accord Risk Measures, SIAM Journal on Financial Mathematics (under review).

J. Hu, B. Jiang, X. Liu and Z. Wen, A Note on Semidefinite Programming Relaxations for Polynomial Optimization Over a Single Sphere, Science China Mathematics, DOI. 10.1007/s11425-016-0301-5. [link]

X. Liu, Z. Wen and Y. Zhang, An Efficient Gauss-Newton Algorithm for Symmetric Low-Rank Product Matrix Approximations, SIAM Journal on Optimization, 25-3 (2015), 1571–1608. [link]

Z. Wen, C. Yang, X. Liu and Y. Zhang, Trace-Penalty Minimization for Large-scale Eigenspace Computation, Journal of Scientific Computing, DOI. 10.1007/s10915-015-0061-0. [link]

X. Liu, Z. Wen, X. Wang, M. Ulbrich and Y. Yuan, On the Analysis of the Discretized Kohn-Sham Density Functional Theory, SIAM Journal on Numerical Analysis, 53-4 (2015), 1758–1785. [link]

Q. Dong, X. Liu, Z. Wen and Y. Yuan, A Parallel Line Search Subspace Correction Method for Convex Optimization Problems, Journal of the Operations Research Society of China, 3 (2015), 163-187. [link]

X. Liu, X. Wang, Z. Wen and Y. Yuan, On the Convergence of the Self-Consistent Field Iteration in Kohn-Sham Density Functional Theory, SIAM Journal on Matrix Analysis and Applications, 35-2 (2014), 546-558. [link]

X. Liu, Z. Wen and Y. Zhang, Limited Memory Block Krylov Subspace Optimization for Computing Dominant Singular Value Decompositions, SIAM Journal on Scientific Computing, 35-3 (2013), A1641-A1668. [link]

X. Liu, C. Hao and M. Cheng, A sequential subspace project method for linear eigenvalue problem, Asia Pacific Journal of Operational Research, 30-3 (2013). [link]

Z. Wen, C. Yang, X. Liu and S. Machesini, Alternating direction methods for classical and ptychographic phase retrieval, Inverse Problems, 28-11 (2012). [link]

Z. Wen, W. Yin, X. Liu and Y. Zhang, Introduction to compressive sensing and sparse optimization, OR Transactions, 16-3 (2012), 49-64. [link]

X. Liu, S. McKeeb, J. Yuan and Y. Yuan, Uniform bounds on the 1-norm of the inverse of lower triangular Toeplitz matrices, Linear Algebra and its Applications, 435 (2011), 1157–1170. [link]

X. Liu, Numerical Methods for Special Nonlinear Least Squares Problems and L1 Norm Minimization Problems, Ph.D. thesis, AMSS, CAS (2009). [pdf]

X. Liu, Global Minimization of Quadratic Least-Squares Problems, Global-Link Informatics Limited, Hong Kong, Proceedings of the Ninth National Conference of Operation Research Society of China (2008), 188-193.

X. Liu and Y. Yuan, On the Separable Nonlinear Least Squares Problems, Journal of Computational Mathematics, 26 (2008), 390-403. [link]

X. Liu, An Efficient Unseparated Scheme for Separable Nonlinear Least Squares Problem, Global-Link Informatics Limited, Hong Kong, Proceedings of the Eighth National Conference of Operation Research Society of China (2006), 132-137.

X. Liu, Optimization Methods for Large-scale Sylvester Equation and the Separation of two Matrices, B.Sc. thesis, SMS, PKU (2004). [pdf]

-- Working Papers

B. Gao, X. Liu, X. Chen and Y. Yuan, A Gradient Reflection Method for Othorgonal Constrained Optimization Problems.

J. Yang, X. Liu and Y. Zhang, Local Convergence of a Class of Generalized Stationary Iterative Methods for Nonlinear Saddle Point Problems.

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Selected Presentations:

2015.07, The 22nd International Symposium on Mathematical Programming (ISMP 2015), Pittsburgh, United States

2015.03, 6th International Conference on High Performance Scientific Computing, Hanoi, Vietnam

2014.10, The 3rd Workshop on Optimization and Risk Management, Hong Kong, China

2014.05, Southern California Optimization Day, San Diego, United States

2014.05, SIAM Conference on Optimization (SIAMOP 2014), San Diego, United States

2013.12, International Conference on Engineering and computational Mathematics, Hong Kong, China

2013.09, Sino-German Symposium on Operations Research, Spitzingsee, Germany

2013.09, The 9th International Conference on Numerical Optimization and Numerical Linear Algebra, Changchun, Jilin, China

2013.07, The Fourth International Conference on Continuous Optimization, Lisbon, Portugal

2013.06, The 11th EUROPT Workshop on Advances in Continuous Opitmization, Firenze, Italy

2012.10, Fifteenth Chinese-American Kavli Frontiers of Science Symposium, Irvine, California, United States

2012.09, The 2nd Sino-German Workshop on Optimization, Modeling, Methods and Applications in Industry and Management, Beijing, China

2012.08, The 21st International Symposium on Mathematical Programming (ISMP 2012), Berlin, Germany

2012.05, The 3rd Conference on Optimization Methods and Software, Chania, Crete, Greece

2011.11, The 8th International Conference on Numerical Optimization and Numerical Linear Algebra, Xiamen, Fujian, China

2011.09, The 5th Sino-Japan Optimization Meeting, Beijing, China

2011.08, Sino-German Workshop on Optimization, Modeling, Methods and Applications in Industry and Management, Berlin, Germany

2011.07, The 7th International Congress on Industrial and Applied Mathematics (ICIAM 2011), Vancouver, Canada

2011.05, SIAM Conference on Optimization (SIAMOP 2011), Darmstadt, Germany

2010.08, Sino-German Workshop on Algorithm Engineering, Shanghai, China

2009.08, The 20th International Symposium of Mathematical Programming (ISMP 2009), Chicago, Illinois, United States

2009.08, The 7th International Conference on Numerical Optimization and Numerical Linear Algebra, Lijiang, Yunnan, China

2008.07, The VII Brazilian Workshop on Continuous Optimization, Campinas, Sao Paulo, Brazil

2007.09, The 6th International Conference on Numerical Linear Algebra and Optimization, Urumqi, Xinjiang, China

2007.07, The 6th International Congress on Industrial and Applied Mathematics (ICIAM 2007), Zurich, Switzerland

2006.09, International Conference on Numerical Analysis and Optimization dedicated to M.J.D. Powell’s 70th Birthday, Beijing, China

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Solvers:

LMSVD, a dominant singular value decomposition solver. (In the case you like this code, please rate it at MATLAB File Exchange, thanks.)
EigPen, an eigenspace solver.
SLRP, an eigenspace solver.