Updated on 2024/04/18

写真a

 
SAITO Yutaka
 
Organization
. Specially Appointed Associate Professor
Title
Specially Appointed Associate Professor
External link

Degree

  • 博士（理学） ( 2016.9   新潟大学 )

Research Areas

  • Natural Science / Applied mathematics and statistics

Research History

  • Niigata University   Specially Appointed Associate Professor

    2023.4

  • Niigata University   Division of Development of Future Education, Institute of Education and Student Affairs   Specially Appointed Associate Professor

    2022.10 - 2023.3

  • Niigata University   Institute of Education and Student Affairs   Specially Appointed Associate Professor

    2019.10 - 2022.9

 

Papers

  • On some extended formulations of vector equilibrium problem and its existence theorems Reviewed

    Yousuke Araya, Yutaka Saito, Yutaka Kimura

    Journal of Nonlinear and Convex Analysis   22 ( 5 )   925 - 935   2021

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  • New Sufficiency for Global Optimality and Duality of Nonlinear Multi-objective Programming Problems via Underestimators Reviewed

    Yousuke Araya, Kaede Suzuki, Yutaka Saito, Yutaka Kimura

    Linear and Nonlinear Analysis   7 ( 2 )   301 - 316   2021

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  • Prior-Knowledge-Embedded LDA with Word2vec – for Detecting Specific Topics in Documents Reviewed

    Hiroshi Uehara, Akihiro Ito, Yutaka Saito, Kenichi Yoshida

    Knowledge Management and Acquisition for Intelligent Systems   115 - 126   2019.8

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    Publishing type：Part of collection (book)   Publisher：Springer International Publishing  

    DOI： 10.1007/978-3-030-30639-7_10

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  • An alternative theorem for set-valued maps via set relations and its application to robustness of feasible sets Reviewed

    Yuto Ogata, Tamaki Tanaka, Yutaka Saito, Gue Myung Lee, Jae Hyoung Lee

    OPTIMIZATION   67 ( 7 )   1067 - 1075   2018

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：TAYLOR & FRANCIS LTD  

    This paper contains a generalized Gordan-type alternative theorem for set-valued maps which characterizes set relations without any convexity assumptions using certain evaluation functions. As a direct consequence and as a good example, we discuss robustness (or stability) of linear programming problems for modelling error. Moreover, this theorem can be utilized for that of general vector optimization problems in special cases due to reformation of the evaluation functions.

    DOI： 10.1080/02331934.2018.1426582

    Web of Science

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  • Computational methods for set-relation-based scalarizing functions Reviewed

    Nihonkai Mathematical Journal   28 ( 2 )   139 - 149   2017

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  • Sublinear scalarization methods for sets with respect to set-relations Reviewed

    Linear and Nonlinear Analysis   3   121 - 132   2017

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  • CONVEXITY FOR COMPOSITIONS OF SET-VALUED MAP AND MONOTONE SCALARIZING FUNCTION Reviewed

    Shogo Kobayashi, Yutaka Saito, Tamaki Tanaka

    PACIFIC JOURNAL OF OPTIMIZATION   12 ( 1 )   43 - 54   2016.1

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：YOKOHAMA PUBL  

    In this paper, we give some characterization on several types of cone-convexity and cone-concavity for compositions of a set-valued map and some kind of order-monotone scalarizing function for sets in a vector space.

    Web of Science

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  • ON GENERALIZATION OF RICCERI'S THEOREM FOR FAN-TAKAHASHI MINIMAX INEQUALITY INTO SET-VALUED MAPS VIA SCALARIZATION Reviewed

    Yutaka Saito, Tamaki Tanaka, Syuuji Yamada

    JOURNAL OF NONLINEAR AND CONVEX ANALYSIS   16 ( 1 )   9 - 19   2015

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：YOKOHAMA PUBL  

    In the paper, we propose Ricceri's theorem on Fan-Takahashi minimax inequality for set-valued maps by using the scalarization method proposed by Kuwano, Tanaka and Yamada, and we give a characterization of a certain set which plays an important role in Ricceri's theorem.

    Web of Science

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MISC

Research Projects

  • Effective procedures for speeding up global optimization algorithms for large-scale canonical dc quadratic programming problems

    Grant number：20K11688

    2020.4 - 2024.3

    System name：Grants-in-Aid for Scientific Research

    Research category：Grant-in-Aid for Scientific Research (C)

    Awarding organization：Japan Society for the Promotion of Science

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    Grant amount：\4160000 （ Direct Cost: \3200000 、 Indirect Cost：\960000 ）

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Teaching Experience

  • 情報処理概論A II

    2022
    Institution name：新潟大学

  • 情報処理概論A I

    2022
    Institution name：新潟大学

  • リメディアル数学II

    2022
    Institution name：新潟大学

  • リメディアル数学I

    2022
    Institution name：新潟大学

  • データサイエンス総論Ⅰ

    2020
    Institution name：新潟大学

  • データサイエンス総論Ⅱ

    2020
    Institution name：新潟大学

  • リメディアル数学I

    2020
    -
    2022
    Institution name：新潟大学

  • リメディアル数学II

    2020
    -
    2022
    Institution name：新潟大学

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