Updated on 2024/07/28

Information

 

写真a

 
KITAHARA TOMONARI
 
Organization
Faculty of Economics Department of Economic Engineering Professor
School of Economics Department of Economic Engineering(Joint Appointment)
Graduate School of Economics Department of Economic Engineering(Joint Appointment)
Joint Graduate School of Mathematics for Innovation (Joint Appointment)
Title
Professor
Contact information
メールアドレス
Tel
0928025524
Profile
教育 学部・学府で基幹教育科目や専門科目を担当し、また少人数のゼミナール指導を行っています。 研究 数理計画法の理論・応用の両面の研究を行っています。

Degree

  • Doctor of Engineering

Research History

  • 2009年4月--2016年3月:東京工業大学 社会理工学研究科 経営工学専攻 助教 2016年4月--2018年3月:東京工業大学 工学院 経営工学系 助教(組織改編により) 2016年4月--2016年9月:成蹊大学 情報科学科 非常勤講師

Research Interests・Research Keywords

  • Research theme:Theoretical properties of linear programming algorithms

    Keyword:Linear programming problem, algorithm, the simplex method, mathematical programming

    Research period: 2018.4

Awards

  • 令和4年度データ解析コンペティション日本計算機統計学会スタディグループ報告会優秀賞(指導学生の受賞)

    2023.2  

  • 令和3年度データ解析コンペティション日本計算機統計学会スタディグループ報告会優秀賞(指導学生の受賞)

    2022.2  

  • 日本オペレーションズ・リサーチ学会第2回研究賞奨励賞

    2012.9   日本オペレーションズ・リサーチ学会  

  • 日本オペレーションズ・リサーチ学会第24回学生論文賞

    2006.9   日本オペレーションズ・リサーチ学会  

Papers

  • A simple projection algorithm for linear programming problems Reviewed International journal

    Tomonari Kitahara and Noriyoshi Sukegawa

    Algorithmica   2018.3

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1007/s00453-018-0436-3

  • The LP-Newton method for standard form linear programming problems Reviewed International journal

    Tomonari Kitahara, Shinji Mizuno, and Jianming Shi

    Operations Research Letters   41   426 - 429   2013.9

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    Language:English   Publishing type:Research paper (scientific journal)  

  • A simple variant of the Mizuno-Todd-Ye predictor-corrector algorithm and its objective-function-free complexity Reviewed International journal

    Tomonari Kitahara and Takashi Tsuchiya

    SIAM Journal on Optimization   23   1890 - 1903   2013.9

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    Language:English   Publishing type:Research paper (scientific journal)  

  • A bound for the number of basic solutions generated by the simplex method Reviewed International journal

    Tomonari Kitahara and Shinji Mizuno

    Mathematical Programming   137   579 - 586   2013.2

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    Language:English   Publishing type:Research paper (scientific journal)  

  • On the number of solutions generated by the dual simplex method Reviewed International journal

    Tomonari Kitahara and Shinji Mizuno

    Operations Research Letters   40   172 - 174   2012.5

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    Language:English   Publishing type:Research paper (scientific journal)  

  • An update-and-stabilize framework for the minimum-norm-point problem Invited Reviewed International journal

    2024.4

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    Language:English   Publishing type:Research paper (scientific journal)  

    Other Link: https://doi.org/10.1007/s10107-024-02077-0

  • 状態空間モデルを用いたECサイトにおけるセール効果の分析 Invited Reviewed International journal

    冨山貴史,瀬貫雄介,菊池明飛,Shurong Sun,北原知就,伊豆永洋一

    計算機統計学   2024.3

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

  • An Update-and-Stabilize Framework for the Minimum-Norm-Point Problem Invited Reviewed International journal

    Integer Programming and Combinatorial Optimization - 24th International Conference, IPCO 2023, Proceedings   142 - 156   2023.5

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: https://doi.org/10.1007/978-3-031-32726-1_11

    Other Link: https://doi.org/10.1007/978-3-031-32726-1_11

  • 子育て母親向けアプリユーザーのネットワークの構築とその分析 Reviewed

    菊池明飛 , 長野嵩太郎 , Sun Shurong, 北原知就 , 伊豆永洋一

    計算機統計学   36 ( 1 )   5 - 13   2023.3

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

  • Steepest-edge rule and its number of simplex iterations for a nondegenerate LP Reviewed International journal

    Masaya Tano, Ryuhei Miyashiro and Tomonari Kitahara

    Operations Research Letters   47 ( 3 )   151 - 156   2019.5

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    Language:English   Publishing type:Research paper (scientific journal)  

  • Approximation algorithms for the covering-type k-violation linear program Reviewed International journal

    Yotaro Takazawa, Shinji Mizuno, Tomonari Kitahara

    Optimization Letters   2019.4

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: https://doi.org/10.1007/s11590-019-01425-w

  • An extension of Chubanov's polynomial-time linear programming algorithm to second-order cone programming Reviewed International journal

    Tomonari Kitahara and Takashi Tsuchiya

    Optimization Methods and Software   33   1 - 25   2018.3

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    Language:English   Publishing type:Research paper (scientific journal)  

  • An improved approximation algorithm for the covering 0–1 integer program Reviewed International journal

    2017.12

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    Language:English   Publishing type:Research paper (scientific journal)  

  • An extension of Chubanov’s algorithm to symmetric cones Reviewed International journal

    Bruno F. Lourenço, Tomonari Kitahara, Masakazu Muramatsu and Takashi Tsuchiya

    2017.11

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    Language:English   Publishing type:Research paper (scientific journal)  

    In this work we present an extension of Chubanov’s algorithm to the case of homogeneous feasibility problems over a symmetric cone K. As in Chubanov’s method for linear feasibility problems, the algorithm consists of a basic procedure and a step where the solutions are confined to the intersection of a half-space and K . Following an earlier work by Kitahara and Tsuchiya on second order cone feasibility problems, progress is measured through the volumes of those intersections: when they become sufficiently small, we know it is time to stop. We never have to explicitly compute the volumes, it is only necessary to keep track of the reductions between iterations. We show this is enough to obtain concrete upper bounds to the minimum eigenvalues of a scaled version of the original feasibility problem. Another distinguishing feature of our approach is the usage of a spectral norm that takes into account the way that K is decomposed as simple cones. In several key cases, including semidefinite programming and second order cone programming, these norms make it possible to obtain better complexity bounds for the basic procedure when compared to a recent approach by Peña and Soheili. Finally, in the appendix, we present a translation of the algorithm to the homogeneous feasibility problem in semidefinite programming.

    DOI: 10.1007/s10107-017-1207-7

  • An approximation algorithm for the partial covering 0-1 integer program Reviewed International journal

    Yotaro Takazawa, Shinji Mizuno, and Tomonari Kitahara

    Discrete Applied Mathematics   2017.9

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.dam.2017.08.024

  • A refinement of Todd's bound for the diameter of a polyhedron Reviewed International journal

    Noriyoshi Sukegawa and Tomonari Kitahara

    Operations Research Letters   43   534 - 536   2015.9

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    Language:English   Publishing type:Research paper (scientific journal)  

  • The simplex method and 0-1 polytopes Reviewed International journal

    Tomonari Kitahara and Shinji Mizuno

    Journal of Mathematical Sciences   2   17 - 21   2015.1

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    Language:English   Publishing type:Research paper (scientific journal)  

  • On the number of solutions generated by the simplex method for LP Reviewed International journal

    Tomonari Kitahara and Shinji Mizuno

    Optimization and Control Techniques and Applications, Springer Proceedings in Mathematics & Statistics   86   75 - 90   2014.6

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    Language:English   Publishing type:Research paper (scientific journal)  

  • An upper bound for the number of different solutions generated by the primal simplex method with any selection rule of entering variables Reviewed International journal

    Tomonari Kitahara and Shinji Mizuno

    Asia-Pacific Journal of Operational Research   30   2013.6

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1142/S0217595913400125

  • 単体法の計算量の新評価 Reviewed

    北原知就, 水野眞治

    55   66 - 83   2013.4

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

  • On the number of solutions generated by Dantzig's simplex method for LP with bounded variables Reviewed International journal

    Tomonari Kitahara, Tomomi Matsui, and Shinji Mizuno

    Pacific Journal of Optimization   8   447 - 455   2012.7

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    Language:English   Publishing type:Research paper (scientific journal)  

  • Lower bounds for the maximum number of solutions generated by the simplex method Reviewed International journal

    Tomonari Kitahara and Shinji Mizuno

    Journal of the Operations Research Society of Japan   54   191 - 200   2011.6

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    Language:English   Publishing type:Research paper (scientific journal)  

  • Klee-Minty's LP and upper bounds for Dantzig's simplex method Reviewed International journal

    Tomonari Kitahara and Shinji Mizuno

    Operations Research Letters   39   88 - 91   2011.3

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    Language:English   Publishing type:Research paper (scientific journal)  

  • Proximity of weighted and layered least squares solutions Reviewed International journal

    Tomonari Kitahara and Takashi Tsuchiya

    SIAM Journal on Matrix Analysis and Applications   1172 - 1186   2009.9

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    Language:English   Publishing type:Research paper (scientific journal)  

  • Quadratic and convex minimax classification problems Reviewed International journal

    Tomonari Kitahara, Shinji Mizuno, and Kazuhide Nakata

    Journal of the Operations Research Society of Japan   51   191 - 201   2008.6

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    Language:English   Publishing type:Research paper (scientific journal)  

  • An extension of a minimax approach to multiple classification Reviewed International journal

    Tomonari Kitahara, Shinji Mizuno, and Kazuhide Nakata

    Journal of the Operations Research Society of Japan   50   123 - 136   2007.6

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

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Presentations

  • 最急降下規則の単体法の反復回数の上界について Invited

    北原 知就

    研究集会「最適化:モデリングとアルゴリズム」  2022.3 

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    Event date: 2022.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:オンライン   Country:Japan  

  • A bound for the number of iterations by the simplex method with the steepest-edge rule Invited International conference

    Workshop on Continuous Optimization and Related Topics  2021.11 

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    Event date: 2021.11

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  • 線形計画問題に対するアルゴリズムとその計算複雑度 Invited

    北原 知就

    2021年度科研費シンポジウム 機械学習システムの社会実装に向けた次世代最適化技法の研究  2021.9 

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    Event date: 2021.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:オンライン   Country:Japan  

  • Steepest-edge 規則を用いた単体法の反復回数の上界と制約行列の条件数の関係について Invited

    北原 知就

    科学研究費 基盤研究(A)「機械学習システムの社会実装に向けた次世代最適化技法の研究」2019年度ワークショップ  2019.8 

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    Event date: 2019.8

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:東京工業大学   Country:Japan  

  • 線形計画問題に対するアルゴリズムをめぐる最近の話題について Invited

    北原 知就

    日本オペレーションズ・リサーチ学会 九州支部 平成30年度第1回講演・研究会  2018.7 

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    Event date: 2018.7

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:九州工業大学サテライト福岡天神   Country:Japan  

  • The simplex method and 0-1 polytope International conference

    Tomonari Kitahara and Shinji Mizuno

    SIAM conference on optimization  2014.5 

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    Event date: 2018.6

    Language:English   Presentation type:Oral presentation (general)  

    Country:United States  

  • 問題発見とOR 東京工業大学における取り組みと4大学交流

    北原知就

    日本オペレーションズ・リサーチ学会 第58回シンポジウム「職業としてのOR」  2007.10 

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    Event date: 2018.6

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:東京   Country:Japan  

  • Quadratic and convex minimax classification problems International conference

    Tomonari Kitahara, Shinji Mizuno and Kazuhide Nakata

    Workshop on Optimization and Signal Processing  2007.11 

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    Event date: 2018.6

    Language:English  

    Country:China  

  • ミニマックス確率マシンとその拡張について Invited

    北原知就,水野眞治,中田和秀

    第11回情報論的学習理論ワークショップ (IBIS2008)  2008.10 

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    Event date: 2018.6

    Language:Japanese  

    Country:Japan  

  • A simple variant of the MTY-PC algorithm and its objective-unction-free polynomial-time convergence for bounded LP International conference

    Tomonari Kitahara and Takashi Tsuchiya

    SIAM conference on optimization  2008.5 

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    Event date: 2018.6

    Language:English   Presentation type:Oral presentation (general)  

    Country:United States  

  • A bound for the number of basic solutions generated by the simplex method International conference

    Tomonari Kitahara and Shinji Mizuno

    SIAM conference on optimization  2011.5 

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    Event date: 2018.6

    Language:English   Presentation type:Oral presentation (general)  

    Country:Germany  

  • A proof by the simplex method for the diameter of a (0,1)-polytope International conference

    Tomonari Kitahara and Shinji Mizuno

    21st International Symposium on Mathematical Programming  2012.8 

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    Event date: 2018.6

    Language:English   Presentation type:Oral presentation (general)  

    Country:Germany  

  • The simplex method and the diameter of a 0-1 polytope International conference

    Tomonari Kitahara and Shinji Mizuno

    Informs Annual Meeting 2012  2012.10 

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    Event date: 2018.6

    Language:English   Presentation type:Oral presentation (general)  

    Country:United States  

  • The simplex method and the diameter of a 0-1 polytope International conference

    Tomonari Kitahara and Shinji Mizuno

    The 9th International conference on Optimization: Techniques and Applications (ICOTA9)  2013.12 

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    Event date: 2018.6

    Language:English   Presentation type:Oral presentation (general)  

    Country:Taiwan, Province of China  

  • 線形計画法における層別最小二乗方向とその周辺, 東京, 2007. Invited

    北原知就, 土谷隆

    日本オペレーションズ・リサーチ学会 「計算と最適化」研究部会第7回研究会  2007.8 

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    Event date: 2018.5

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

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MISC

  • 線形計画問題に対する新しい多項式アルゴリズム ―Chubanovのアルゴリズム―

    北原 知就

    オペレーションズ・リサーチ   2019.4

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)  

  • コンテナターミナルの効率的運営方法の研究

    北原知就, 水野眞治

    2016.10

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    Language:Japanese  

  • 日本オペレーションズ・リサーチ学会2016年春季研究発表会ルポ

    北原知就, 八木恭子, 渡部大輔

    2016.8

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)  

  • 単体法が生成する基底解の数の上界

    北原 知就

    オペレーションズ・リサーチ   2014.3

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)  

Professional Memberships

  • 計算機統計学会

  • The Operations Research Society of Japan

Committee Memberships

  • Steering committee member  

    2021.4 - Present   

  • Organizer   Domestic

    2020.4 - Present   

  • Organizer   Domestic

    2017.4 - 2020.3   

Academic Activities

  • 日本オペレーションズ・リサーチ学会 論文誌編集委員会

    2023.5 - Present

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    Type:Academic society, research group, etc. 

  • 実行委員

    日本オペレーションズ・リサーチ学会 秋季シンポジウム・研究発表会  2021.9

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    Type:Competition, symposium, etc. 

  • 実行委員 International contribution

    2016.8

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    Type:Competition, symposium, etc. 

Research Projects

  • 最適化を中心とした数理モデリングの手法の新展開

    2021 - 2023

    日本学術振興会  科学研究費助成事業  基盤研究(B)

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    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

  • 線形計画問題に対する離散・連続融合アルゴリズムの開発

    Grant number:19K11830  2019 - 2022

    日本学術振興会  科学研究費助成事業  基盤研究(C)

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    Authorship:Principal investigator  Grant type:Scientific research funding

  • 機械学習システムの社会実装に向けた次世代最適化技法の研究

    2019 - 2021

    日本学術振興会  科学研究費助成事業  基盤研究(A)

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    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

  • 単体法は多項式アルゴリズムであるか ―未解決問題解決への布石―

    2015 - 2017

    科学研究費助成事業  若手研究(B)

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    Authorship:Principal investigator  Grant type:Scientific research funding

  • 凸錐上の線形計画法の深化と数理モデリングの新展開

    2015 - 2017

    日本学術振興会  科学研究費助成事業  基盤研究(B)

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    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

  • 新時代の最適化モデルに基づく意思決定支援プラットフォームの研究と開発

    2014 - 2018

    日本学術振興会  科学研究費助成事業  基盤研究(A)

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    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

  • 凸最適化によるモデリングと計算推論の新展開

    2012 - 2014

    日本学術振興会  科学研究費助成事業  基盤研究(B)

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    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

  • 日本の公的年金運用のための最適化手法の開発

    2011 - 2012

    科学研究費助成事業  若手研究(B)

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    Authorship:Principal investigator  Grant type:Scientific research funding

  • 情報化ネットワーク社会に向けた高度な専門的数理技術ライブラリの研究と開発

    2009 - 2012

    日本学術振興会  科学研究費助成事業  基盤研究(A)

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    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

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Class subject

  • 数理計画

    2024.10 - 2025.3   Second semester

  • 数理計画特研Ⅱ

    2024.10 - 2025.3   Second semester

  • 入門線形代数Ⅱ

    2024.6 - 2024.8   Summer quarter

  • 経済工学演習③

    2024.4 - 2025.3   Full year

  • 経済工学演習④

    2024.4 - 2025.3   Full year

  • 応用数理Ⅱ

    2024.4 - 2024.9   First semester

  • 数理計画特研Ⅰ

    2024.4 - 2024.9   First semester

  • 入門線形代数Ⅰ

    2024.4 - 2024.6   Spring quarter

  • 数理計画特研Ⅱ

    2023.10 - 2024.3   Second semester

  • 数理計画

    2023.10 - 2024.3   Second semester

  • 経済工学基礎セミナー

    2023.10 - 2023.12   Fall quarter

  • 経済工学プレセミナー

    2023.6 - 2023.8   Summer quarter

  • 入門線形代数Ⅱ

    2023.6 - 2023.8   Summer quarter

  • 経済工学演習①

    2023.4 - 2024.3   Full year

  • 経済工学演習②

    2023.4 - 2024.3   Full year

  • 経済工学演習②

    2023.4 - 2024.3   Full year

  • 経済工学演習①

    2023.4 - 2024.3   Full year

  • 数理計画特研Ⅰ

    2023.4 - 2023.9   First semester

  • 入門線形代数Ⅰ

    2023.4 - 2023.6   Spring quarter

  • 数理計画特研Ⅱ

    2022.10 - 2023.3   Second semester

  • 課題協学科目

    2022.10 - 2023.3   Second semester

  • 入門線形代数Ⅱ

    2022.6 - 2022.8   Summer quarter

  • 経済工学演習④

    2022.4 - 2023.3   Full year

  • 経済工学演習③

    2022.4 - 2023.3   Full year

  • 数理計画特研Ⅰ

    2022.4 - 2022.9   First semester

  • 入門線形代数Ⅰ

    2022.4 - 2022.6   Spring quarter

  • 数理計画特研Ⅱ

    2021.10 - 2022.3   Second semester

  • 数理計画

    2021.10 - 2022.3   Second semester

  • 入門線形代数Ⅱ

    2021.6 - 2021.8   Summer quarter

  • 経済工学演習②

    2021.4 - 2022.3   Full year

  • 経済工学演習①

    2021.4 - 2022.3   Full year

  • 数学共創概論Ⅰ

    2021.4 - 2021.9   First semester

  • 数理計画特研Ⅰ

    2021.4 - 2021.9   First semester

  • 情報処理Ⅰ(経済・経営)

    2021.4 - 2021.9   First semester

  • 入門線形代数Ⅰ

    2021.4 - 2021.6   Spring quarter

  • 数理計画

    2020.10 - 2021.3   Second semester

  • 数理計画特研Ⅱ

    2020.10 - 2021.3   Second semester

  • Mathematical Programming

    2020.10 - 2021.3   Second semester

  • 数理計画特研Ⅱ

    2020.10 - 2021.3   Second semester

  • 経済工学演習③

    2020.4 - 2021.3   Full year

  • 経済工学演習④

    2020.4 - 2021.3   Full year

  • 数理計画特研Ⅰ

    2020.4 - 2020.9   First semester

  • 線形代数

    2020.4 - 2020.9   First semester

  • 応用数理Ⅱ

    2020.4 - 2020.9   First semester

  • 数理計画

    2019.10 - 2020.3   Second semester

  • 数理計画特研Ⅱ

    2019.10 - 2020.3   Second semester

  • 経済工学演習①

    2019.4 - 2020.3   Full year

  • 経済工学演習②

    2019.4 - 2020.3   Full year

  • 数理計画特研Ⅰ

    2019.4 - 2019.9   First semester

  • 線形代数

    2019.4 - 2019.9   First semester

  • 微分積分学・同演習A

    2019.4 - 2019.9   First semester

  • 数理計画特研Ⅱ

    2018.10 - 2019.3   Second semester

  • 数理計画

    2018.10 - 2019.3   Second semester

  • 経済工学演習④

    2018.4 - 2019.3   Full year

  • 経済工学演習③

    2018.4 - 2019.3   Full year

  • 情報処理Ⅰ

    2018.4 - 2018.9   First semester

  • 線形代数

    2018.4 - 2018.9   First semester

  • 数理計画特研Ⅰ

    2018.4 - 2018.9   First semester

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FD Participation

  • 2018.4   Role:Participation   Title:第1回全学FD(新任教員の研修)

    Organizer:University-wide

Social Activities

  • SSH国内臨地研修講師

    新潟県立新潟南高校  2016.8

     More details

    Audience: Infants, Schoolchildren, Junior students, High school students

    Type:Seminar, workshop