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Exploring new horizons in statistical inference theory in multivariate analysis

Research Project

Project/Area Number 19K11867
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 60030:Statistical science-related
Research InstitutionOsaka Metropolitan University (2022-2023)
Japan Women's University (2019-2021)

Principal Investigator

Konno Yoshihiko  大阪公立大学, 大学院理学研究科, 教授 (00205577)

Project Period (FY) 2019-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2023: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2022: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2021: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2020: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords縮小推定量 / 推定量の評価 / 同時推定問題 / 共通平均問題 / コピュラ / メアアナリシス / 縮小推定法 / スタインの不偏リスク推定値 / 事前検定推定量 / メタアナンリシス / 多変量正規分布 / 低ランク推定 / スタイン問題 / ウィシャート分布 / SURE 法 / 低ランク行列推定 / 複素正規分布 / 複素ウィシャート分布 / スタイン推定 / 多変量解析 / スタイン推定量
Outline of Research at the Start

本研究の岳陽は、多くの重要なモデルを含む一般的な統計モデルを構築し、そのもとで統計的推測理論を展開していくことである。本研究の学術的な特徴および独自性は、その研究対象と研究手法が分野横断的な点である。すなわち、機械学習理論、パターン認識等の個別分野で登場する統計モデルにおける推測理論を統計的決定理論の立場から体系的に研究を進めるところに本研究の特徴と独自性がある。さらに、信号処理で重要な複素数値データに対する有効な統計手法を統計的決定理論の立場から体系的に提案することを目指すことは意義深いことである。

Outline of Final Research Achievements

The results include the following.(1) Accuracy evaluation of the estimator in the problem of simultaneous estimation of the mean vector in a complex multivariate normal model when the covariance matrix is unknown.(2) Examine the problem of parameter estimation in meta-analysis in the framework of the common mean estimation problem, propose a reduced estimator, and numerically evaluate its accuracy.(3) Proposal of a new low-rank estimator for estimation problems when the mean matrix of a matrix-type multivariate normal distribution model with a common unknown variance-covariance matrix is low-rank.

Academic Significance and Societal Importance of the Research Achievements

統計的推測問題に対する理論的な結果は, 本課題がかかわる学問領域において重要な役割を果たす. さらに, 生物統計学への応用も視野に入れた研究成果も含むので, その社会的な意義も高いと思われる.

Report

(6 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (14 results)

All 2023 2022 2021 2020 2019 Other

All Journal Article (6 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 6 results,  Open Access: 3 results) Presentation (5 results) (of which Int'l Joint Research: 2 results,  Invited: 1 results) Remarks (3 results)

  • [Journal Article] An adaptive singular value shrinkage for estimation problem of low-rank matrix mean with unknown covariance matrix2023

    • Author(s)
      Konno, Y.
    • Journal Title

      Japanese Journal of Statistics and Data Science

      Volume: - Issue: 1 Pages: 455-464

    • DOI

      10.1007/s42081-023-00223-0

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Confidence interval for normal means in meta-analysis based on a pretest estimator2023

    • Author(s)
      Taketomi, N., Chang, Y.-T., Konno, Y., Mori, M., and Emura, T.
    • Journal Title

      Japanese Journal of Statistics and Data Science

      Volume: - Issue: 1 Pages: 537-568

    • DOI

      10.1007/s42081-023-00221-2

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A class of general pretest estimators for the univariate normal mean2023

    • Author(s)
      Shih, J.-H. Konno, Y., Chang, Y-T., and Emura
    • Journal Title

      Commmunication in Statistics-Theory and Methods

      Volume: 52 Issue: 8 Pages: 2538-2561

    • DOI

      10.1080/03610926.2021.1955384

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Copula-Based Estimation Methods for a Common Mean Vector for Bivariate Meta-Analyses2022

    • Author(s)
      Shih, J.-H., Konno, Y., Chang, Y-T., and Emura,
    • Journal Title

      Symmetry

      Volume: 14

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A Meta-Analysis for Simultaneously Estimating Individual Means with Shrinkage, Isotonic Regression and Pretests2021

    • Author(s)
      Taketomi, N., Konno, Y., Chang Y-T., and Emura, T.
    • Journal Title

      Axioms

      Volume: 10

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Estimation of a common mean vector in bivariate meta-analysis under the FGM copula2019

    • Author(s)
      Shih Jia-Han、Konno Yoshihiko、Chang Yuan-Tsung、Emura Takeshi
    • Journal Title

      Statistics

      Volume: 53 Issue: 3 Pages: 673-695

    • DOI

      10.1080/02331888.2019.1581782

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Adaptive shrinkage of singular values of a low-rank mean matrix when a covariance matrix is unknown2022

    • Author(s)
      Yoshihiko Konno
    • Organizer
      大阪公立大学数学研究所 研究集会
    • Related Report
      2022 Research-status Report
  • [Presentation] Stein’s unbiased risk estimate and adaptive singular value shrinkage for estimatin problem of low-rank matrix mean with unknown covariance matrix2022

    • Author(s)
      Yoshihiko Konno
    • Organizer
      研究集会「Conference Mathematical Methods of Modern Statistics 3」
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Improved mean-matrix estimation of multivariate complex normal distributions by a singular value shrinkage2021

    • Author(s)
      Yoshihiko Konno
    • Organizer
      OCAMI 研究集会「統計的推測理論への幾何学的アプローチ
    • Related Report
      2021 Research-status Report
  • [Presentation] Shrinkage estimation of mean for complex multivariate normal distribution with unknown covariance when $p > n$2020

    • Author(s)
      Yoshihiko Konno and Satomi Seita
    • Organizer
      Mathematical Methods of Modern Statistics 2
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Shrinkage estimation of mean for complex multivariate normal distribution with unknown covariance when $p > n$2020

    • Author(s)
      Konno, Yoshihiko and Seita, Satomo
    • Organizer
      日本数学会
    • Related Report
      2019 Research-status Report
  • [Remarks] 今野 良彦の研究活動の紹介

    • URL

      https://mcm-www.jwu.ac.jp/~konno/resarch.html

    • Related Report
      2023 Annual Research Report
  • [Remarks] 今野良彦のホームページの論文一覧

    • URL

      https://mcm-www.jwu.ac.jp/~konno/list.html

    • Related Report
      2021 Research-status Report
  • [Remarks] OCAMI 研究集会のスライド

    • URL

      https://mcm-www.jwu.ac.jp/~konno/pdf/talk46.pdf

    • Related Report
      2021 Research-status Report

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Published: 2019-04-18   Modified: 2025-01-30  

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