Liu Tianxiang ＬｉｕＴｉａｎｘｉａｎｇ

Researcher Number	90835216
Other IDs	https://orcid.org/0000-0001-7096-2668
Affiliation (Current)	2025: 東京科学大学, 情報理工学院, 助教
Affiliation (based on the past Project Information) *help	2025: 東京科学大学, 情報理工学院, 助教 2023: 国立研究開発法人理化学研究所, 革新知能統合研究センター, 特別研究員 2021: 国立研究開発法人理化学研究所, 革新知能統合研究センター, 特別研究員 2020: 東京工業大学, 情報理工学院, 助教 2019: 国立研究開発法人理化学研究所, 革新知能統合研究センター, 特別研究員
Review Section/Research Field	Principal Investigator Basic Section 60020:Mathematical informatics-related Except Principal Investigator Basic Section 60020:Mathematical informatics-related
Keywords	Except Principal Investigator 低ランクスパース最適化 / 確率的DCアルゴリズム / ペナルティ法 / ホモトピー法 / ２段階最適化問題 / ランダム行列理論 / 錐最適化問題 / 確率最適化 / 大域収束性 / 最悪反復計算量 / DC最適化 / 機械学習 / 非凸非平滑最適化

Fast numerical methods for nonconvex nonsmooth problems without global Lipschitz gradients and applications to machine learningPrincipal Investigator
- Principal Investigator
  
  Liu Tianxiang
- Project Period (FY)
  2025 – 2028
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 60020:Mathematical informatics-related
- Research Institution
  Institute of Science Tokyo
Developing efficient algorithms for nonconvex non smooth optimization and its application to machine learning
- Principal Investigator
  
  Takeda Akiko
- Project Period (FY)
  2019 – 2022
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 60020:Mathematical informatics-related
- Research Institution
  The University of Tokyo

All 2023 2020 2019

All Journal Article

[Journal Article] Doubly majorized algorithm for sparsity-inducing optimization problems with regularizer-compatible constraints2023
- Author(s)
  Liu Tianxiang、Pong Ting Kei、Takeda Akiko
- Journal Title
  
  Computational Optimization and Applications
  
  Volume: 86 Issue: 2 Pages: 521-553
- DOI
  10.1007/s10589-023-00503-1
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19H04069, KAKENHI-PROJECT-23K28041
[Journal Article] A hybrid penalty method for a class of optimization problems with multiple rank constraints2020
- Author(s)
  Tianxiang Liu, Ivan Markovsky, Ting Kei Pong, Akiko Takeda
- Journal Title
  
  SIAM Journal on Matrix Analysis and Applications
  
  Volume: 41 Issue: 3 Pages: 1260-1283
- DOI
  10.1137/19m1269919
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17H01699, KAKENHI-PROJECT-19H04069
[Journal Article] Data-driven structured noise filtering via common dynamics estimation2020
- Author(s)
  Ivan Markovsky, Tianxiang Liu, Akiko Takeda
- Journal Title
  
  IEEE Transactions on Signal Processing
  
  Volume: 68 Pages: 3064-3073
- DOI
  10.1109/tsp.2020.2993676
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17H01699, KAKENHI-PROJECT-19H04069
[Journal Article] A successive difference-of-convex approximation method for a class of nonconvex nonsmooth optimization problems2019
- Author(s)
  Tianxiang Liu, Ting Kei Pong, Akiko Takeda
- Journal Title
  
  Mathematical Programming
  
  Volume: 176 Issue: 1-2 Pages: 339-367
- DOI
  10.1007/s10107-018-1327-8
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19H04069, KAKENHI-PROJECT-15K00031
[Journal Article] Subspace methods for multi-channel sum-of-exponentials common dynamics estimation2019
- Author(s)
  Ivan Markovsky, Tianxiang Liu, Akiko Takeda
- Journal Title
  
  2019 IEEE 58th Conference on Decision and Control (CDC)}, Nice, France, 2019, pp. 2672-2675.
  
  Volume: - Pages: 2672-2675
- Data Source
  KAKENHI-PROJECT-19H04069
[Journal Article] A refined convergence analysis of pDCAe with applications to simultaneous sparse recovery and outlier detection2019
- Author(s)
  Liu Tianxiang、Pong Ting Kei、Takeda Akiko
- Journal Title
  
  Computational Optimization and Applications
  
  Volume: 73 Issue: 1 Pages: 69-100
- DOI
  10.1007/s10589-019-00067-z
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K00031, KAKENHI-PROJECT-19H04069

1. Takeda Akiko (80361799)

# of Collaborated Projects: 1 results

# of Collaborated Products: 6 results
2. ロウレンソブルノ・フィゲラ (80778720)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
3. Metel MichaelRos (40839081)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results

Liu Tianxiang Ｌｉｕ Ｔｉａｎｘｉａｎｇ

Research Projects

Research Products

Co-Researchers

Fast numerical methods for nonconvex nonsmooth problems without global Lipschitz gradients and applications to machine learningPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Developing efficient algorithms for nonconvex non smooth optimization and its application to machine learning

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

[Journal Article] Doubly majorized algorithm for sparsity-inducing optimization problems with regularizer-compatible constraints2023

Author(s)

Journal Title

DOI

Data Source

[Journal Article] A hybrid penalty method for a class of optimization problems with multiple rank constraints2020

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Data-driven structured noise filtering via common dynamics estimation2020

Author(s)

Journal Title

DOI

Data Source

[Journal Article] A successive difference-of-convex approximation method for a class of nonconvex nonsmooth optimization problems2019

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Subspace methods for multi-channel sum-of-exponentials common dynamics estimation2019

Author(s)

Journal Title

Data Source

[Journal Article] A refined convergence analysis of pDCAe with applications to simultaneous sparse recovery and outlier detection2019

Author(s)

Journal Title

DOI

Data Source

Liu Tianxiang ＬｉｕＴｉａｎｘｉａｎｇ