Fujiwara Yuichiro 藤原祐一郎

Researcher Number	20756142
Other IDs
Affiliation (Current)	2025: 千葉大学, 大学院情報学研究院, 准教授
Affiliation (based on the past Project Information) *help	2024: 千葉大学, 大学院情報学研究院, 准教授 2017 – 2022: 千葉大学, 大学院工学研究院, 准教授 2016: 千葉大学, 大学院融合科学研究科, 助教 2015: 千葉大学, 融合科学研究科(研究院), 助教
Review Section/Research Field	Principal Investigator Basic Section 60010:Theory of informatics-related / Theory of informatics
Keywords	Principal Investigator 符号理論 / 確率的組合せ論 / 組合せ論 / 誤り訂正 / 極値集合論 / 誤り訂正符号 / 有限幾何 / レーベンシュタイン限界 / センサーネットワーク / グループテスティング … More / ネットワーク / グラフ理論 / 同期 / 組合せ符号 / 自己同期符号 / 確率論 / 次世代情報処理 / DNAストレージ / 量子情報 / データ圧縮 / デザイン理論 / 確率的手法 / 消失誤り / 確率伝搬法 / X符号 / 有限幾何学 / 組合せデザイン論 / 情報圧縮 / 量子情報理論 / 量子計算 / LDPC符号 / 量子誤り訂正符号 Less

Research Projects
(4 results)
Research Products
(39 results)

レーベンシュタイン限界および関連する符号理論への確率的組合せ論の応用Principal Investigator
- Principal Investigator
  
  藤原祐一郎
- Project Period (FY)
  2024 – 2026
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 60010:Theory of informatics-related
- Research Institution
  Chiba University
Applications of probabilistic combinatorics and extremal set theory to deriving bounds in classical and quantum coding theoryPrincipal Investigator
- Principal Investigator
  
  Fujiwara Yuichiro
- Project Period (FY)
  2020 – 2022
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 60010:Theory of informatics-related
- Research Institution
  Chiba University
Coding theoretic foundations of quantum information synchronization and longer-term information and long-term information storage via polymersPrincipal Investigator
- Principal Investigator
  
  Fujiwara Yuichiro
- Project Period (FY)
  2017 – 2019
- Research Category
  
  Grant-in-Aid for Young Scientists (B)
- Research Field
  
  Theory of informatics
- Research Institution
  Chiba University
A novel approach to a coding theory for fault-tolerant quantum information processing and its applications to classical coding theoryPrincipal Investigator
- Principal Investigator
  
  Fujiwara Yuichiro
- Project Period (FY)
  2015 – 2016
- Research Category
  
  Grant-in-Aid for Research Activity Start-up
- Research Field
  
  Theory of informatics
- Research Institution
  Chiba University

All 2023 2022 2020 2019 2018 2017 2016 2015

All Journal Article Presentation

[Journal Article] The Asymptotics of Difference Systems of Sets for Synchronization and Phase Detection2023
- Author(s)
  Y. Tsunoda and Y. Fujiwara
- Journal Title
  
  Proceedings of the 2023 IEEE International Symposium of Information Theory
  
  Volume: to appear
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20K11668
[Journal Article] Weak Superimposed Codes of Improved Asymptotic Rate and Their Randomized Construction2022
- Author(s)
  Y. Tsunoda and Y. Fujiwara
- Journal Title
  
  Proceedings of the 2022 IEEE International Symposium of Information Theory
  
  Volume: Aug Pages: 784-789
- DOI
  10.1109/isit50566.2022.9834680
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20K11668, KAKENHI-PROJECT-22KJ0344
[Journal Article] Weak Superimposed Codes of Improved Asymptotic Rate and Their Randomized Construction2022
- Author(s)
  Y. Tsunoda and Y. Fujiwara
- Journal Title
  
  Proceedings of the 2022 IEEE International Symposium on Information Theory
  
  Volume: 1
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20K11668
[Journal Article] Small stopping sets in projective low-density parity-check codes2019
- Author(s)
  Fujiwara Yuichiro、Tsunoda Yu
- Journal Title
  
  Proceedings of the 2019 IEEE Information Theory Workshop
  
  Volume: Aug Pages: 559-563
- DOI
  10.1109/itw44776.2019.8989047
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17K12638, KAKENHI-PROJECT-18J20466
[Journal Article] On the maximum number of codewords of X-codes of constant weight three2019
- Author(s)
  Y. Fujiwara, Y. Tsunoda
- Journal Title
  
  Proceedings of the 2019 IEEE International Symposium on Information Theory
  
  Volume: Jul Pages: 1752-1756
- DOI
  10.1109/isit.2019.8849238
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-17K12638, KAKENHI-PROJECT-18J20466
[Journal Article] Bounds on Separating Redundancy of Linear Codes and Rates of X-Codes2018
- Author(s)
  Y. Tsunoda, Y. Fujiwara, H. Ando, P. Vandendriessche
- Journal Title
  
  IEEE Transactions on Information Theory
  
  Volume: 64 Issue: 12 Pages: 7577-7593
- DOI
  10.1109/tit.2018.2871477
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K12638, KAKENHI-PROJECT-18J20466
[Journal Article] Bounds and polynomial-time construction algorithm for X-codes of constant weight three2018
- Author(s)
  Yu Tsunoda, Yuichiro Fujiwara
- Journal Title
  
  Proceedings of the 2018 IEEE International Symposium on Information Theory
  
  Volume: 印刷中
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17K12638
[Journal Article] Bounds and Polynomial-Time Construction Algorithm for X-Codes of Constant Weight Three2018
- Author(s)
  Y. Tsunoda, Y. Fujiwara
- Journal Title
  
  Proceedings of the 2018 IEEE International Symposium on Information Theory
  
  Volume: - Pages: 2515-2519
- DOI
  10.1109/isit.2018.8437884
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-17K12638, KAKENHI-PROJECT-18J20466
[Journal Article] Explicit bounds on the length of optimal X-codes2017
- Author(s)
  Y. Tsunoda and Y. Fujiwara
- Journal Title
  
  Proceedings of the 2017 IEEE International Symposium on Information Theory
  
  Volume: 印刷中
- Peer Reviewed / Acknowledgement Compliant / Open Access
- Data Source
  KAKENHI-PROJECT-15H06086
[Journal Article] Explicit bounds on the length of optimal X-codes2017
- Author(s)
  Yu Tsunoda, Yuichiro Fujiwara
- Journal Title
  
  Proceedings of the 2017 IEEE International Symposium on Information Theory
  
  Volume: August Pages: 3165-3169
- DOI
  10.1109/isit.2017.8007113
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17K12638
[Journal Article] Probabilistic bounds on the trapping redundancy of linear codes2016
- Author(s)
  Y. Tsunoda and Y. Fujiwara
- Journal Title
  
  Proceedings of the 2016 IEEE International Symposium on Information Theory
  
  Volume: － Pages: 1745-1749
- DOI
  10.1109/isit.2016.7541598
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-15H06086
[Presentation] The Asymptotics of Difference Systems of Sets for Synchronization and Phase Detection2023
- Author(s)
  Y. Tsunoda and Y. Fujiwara
- Organizer
  2023 IEEE International Symposium of Information Theory
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20K11668
[Presentation] Weak Superimposed Codes of Improved Asymptotic Rate and Their Randomized Construction2022
- Author(s)
  Y. Tsunoda and Y. Fujiwara
- Organizer
  2022 IEEE International Symposium of Information Theory
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20K11668
[Presentation] Weak Superimposed Codes of Improved Asymptotic Rate and Their Randomized Construction2022
- Author(s)
  Y. Tsunoda and Y. Fujiwara
- Organizer
  2022 IEEE International Symposium on Information Theory
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20K11668
[Presentation] Bounds and Polynomial-Time Construction Algorithm for Weak Superimposed Codes2022
- Author(s)
  Y. Tsunoda and Y. Fujiwara
- Organizer
  離散数学とその応用研究集会2022 ミニシンポジウム
- Invited
- Data Source
  KAKENHI-PROJECT-20K11668
[Presentation] Bounds on the estimation error of syndrome-based channel parameter estimation by linear codes2022
- Author(s)
  Y. Fujiwara
- Organizer
  29th British Combinatorial Conference
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20K11668
[Presentation] Sublinear-time algorithm for near domination in mobile wireless sensor networks2020
- Author(s)
  藤原祐一郎
- Organizer
  離散数学とその応用研究集会2020
- Data Source
  KAKENHI-PROJECT-20K11668
[Presentation] Improved bounds through probabilistic methods for global quantum error correction2019
- Author(s)
  Y. Tsunoda, Y. Fujiwara
- Organizer
  AMS Spring Central and Western Joint Sectional Meeting
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K12638
[Presentation] Codes for correcting erasures with sporadic errors2019
- Author(s)
  Y. Fujiwara
- Organizer
  27th British Combinatorial Conference
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K12638
[Presentation] Small Stopping Sets in Projective Low-Density Parity-Check Codes2019
- Author(s)
  Y. Tsunoda, Y. Fujiwara
- Organizer
  2019 IEEE Information Theory Workshop
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K12638
[Presentation] Necessary Conditions for the existence of X-Codes of Constant Weight Three and a Polynomial-Time Construction2019
- Author(s)
  角田有，藤原祐一郎
- Organizer
  実験計画法と符号および関連する組合せ構造 2019
- Data Source
  KAKENHI-PROJECT-17K12638
[Presentation] Parity-check matrices for error-erasure separation and X-codes2019
- Author(s)
  Y. Fujiwara
- Organizer
  AMS Spring Central and Western Joint Sectional Meeting
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K12638
[Presentation] On the Maximum Number of Codewords of X-Codes of Constant Weight Three2019
- Author(s)
  Y. Fujiwara, Y. Tsunoda
- Organizer
  2019 IEEE International Symposium on Information Theory
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K12638
[Presentation] Probabilistic upper bound on the domination number2019
- Author(s)
  Y. Tsunoda, Y. Oh, Y. Fujiwara
- Organizer
  50th Southeastern International Conference on Combinatorics, Graph Theory, and Computing
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K12638
[Presentation] Correcting both qubit loss and decoherence by stabilizer codes2018
- Author(s)
  Yuichiro Fujiwara
- Organizer
  5th Taiwan-Japan Conference on Combinatorics and Its Applications
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K12638
[Presentation] Error-erasure separation and X-codes2018
- Author(s)
  藤原祐一郎
- Organizer
  組合せ論的符号理論
- Data Source
  KAKENHI-PROJECT-17K12638
[Presentation] Bounds and polynomial-time construction algorithm for X-codes of constant weight three2018
- Author(s)
  Yu Tsunoda, Yuichiro Fujiwara
- Organizer
  2018 IEEE International Symposium on Information Theory
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K12638
[Presentation] Bounds on the redundancy for global quantum error correction2018
- Author(s)
  角田有, 藤原祐一郎
- Organizer
  実験計画法ならびに情報数理と関連する組合せ構造 2018
- Data Source
  KAKENHI-PROJECT-17K12638
[Presentation] Bounds and constructions for X-codes2018
- Author(s)
  Y. Fujiwara
- Organizer
  Conference on Combinatorics and its Applications
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K12638
[Presentation] On a relationship between X-codes and separating parity-check matrices2018
- Author(s)
  Y. Tsunoda, Y. Fujiwara
- Organizer
  The Japanese Conference on Combinatorics and its Applications
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K12638
[Presentation] Bounds and polynomial-time construction algorithm for X-codes of constant weight three2018
- Author(s)
  Y. Tsunoda, Y. Fujiwara
- Organizer
  IEEE International Symposium on Information Theory
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K12638
[Presentation] A nontrivial inequality relating domination and independence in a graph2018
- Author(s)
  呉有敏, 藤原祐一郎
- Organizer
  実験計画法ならびに情報数理と関連する組合せ構造 2018
- Data Source
  KAKENHI-PROJECT-17K12638
[Presentation] Explicit bounds on the length of optimal X-codes2017
- Author(s)
  Yu Tsunoda, Yuichiro Fujiwara
- Organizer
  2017 IEEE International Symposium on Information Theory
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K12638
[Presentation] Explicit bounds on the length of optimal X-codes2017
- Author(s)
  Y. Tsunoda and Y. Fujiwara
- Organizer
  2017 IEEE International Symposium on Information Theory
- Place of Presentation
  Aachen, Germany
- Year and Date
  2017-04-02
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15H06086
[Presentation] Probabilistic bounds on the trapping redundancy of linear codes2016
- Author(s)
  Y. Tsunoda and Y. Fujiwara
- Organizer
  2016 IEEE International Symposium on Information Theory
- Place of Presentation
  Barcelona, Spain
- Year and Date
  2016-07-10
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15H06086
[Presentation] A coding scheme for efficiently readable DNA storage2016
- Author(s)
  藤原祐一郎
- Organizer
  実験計画法と符号および関連する組合せ構造
- Place of Presentation
  仙台
- Year and Date
  2016-11-28
- Data Source
  KAKENHI-PROJECT-15H06086
[Presentation] Algebraic and probabilistic combinatorics for robust stabilizer quantum error correction2016
- Author(s)
  藤原祐一郎
- Organizer
  有限群とその表現, 頂点作用素代数, 代数的組合せ論の研究
- Place of Presentation
  京都大学数理解析研究所
- Year and Date
  2016-01-07
- Data Source
  KAKENHI-PROJECT-15H06086
[Presentation] Equivalence of trapping redundancy to the overhead for global quantum error correction2015
- Author(s)
  藤原祐一郎
- Organizer
  実験計画法と符号および関連する組合せ構造
- Place of Presentation
  箱根水明荘会議室
- Year and Date
  2015-12-02
- Data Source
  KAKENHI-PROJECT-15H06086
[Presentation] Quantum error correction under a phenomenological syndrome error model I: The basics2015
- Author(s)
  藤原祐一郎
- Organizer
  Workshop on Formalization of Applied Mathematical Systems
- Place of Presentation
  ハワイ大学マノア校
- Year and Date
  2015-10-01
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15H06086

Fujiwara Yuichiro 藤原 祐一郎

Research Projects

Research Products

レーベンシュタイン限界および関連する符号理論への確率的組合せ論の応用Principal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Applications of probabilistic combinatorics and extremal set theory to deriving bounds in classical and quantum coding theoryPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Coding theoretic foundations of quantum information synchronization and longer-term information and long-term information storage via polymersPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

A novel approach to a coding theory for fault-tolerant quantum information processing and its applications to classical coding theoryPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

[Journal Article] The Asymptotics of Difference Systems of Sets for Synchronization and Phase Detection2023

Author(s)

Journal Title

Data Source

[Journal Article] Weak Superimposed Codes of Improved Asymptotic Rate and Their Randomized Construction2022

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Weak Superimposed Codes of Improved Asymptotic Rate and Their Randomized Construction2022

Author(s)

Journal Title

Data Source

[Journal Article] Small stopping sets in projective low-density parity-check codes2019

Author(s)

Journal Title

DOI

Data Source

[Journal Article] On the maximum number of codewords of X-codes of constant weight three2019

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Bounds on Separating Redundancy of Linear Codes and Rates of X-Codes2018

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Bounds and polynomial-time construction algorithm for X-codes of constant weight three2018

Author(s)

Journal Title

Data Source

[Journal Article] Bounds and Polynomial-Time Construction Algorithm for X-Codes of Constant Weight Three2018

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Explicit bounds on the length of optimal X-codes2017

Author(s)

Journal Title

Data Source

[Journal Article] Explicit bounds on the length of optimal X-codes2017

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Probabilistic bounds on the trapping redundancy of linear codes2016

Author(s)

Journal Title

DOI

Data Source

[Presentation] The Asymptotics of Difference Systems of Sets for Synchronization and Phase Detection2023

Author(s)

Fujiwara Yuichiro 藤原祐一郎