YAMAMOTO KOUJI 山本紘司

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Yamamoto Kouji 山本紘司

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Researcher Number	10548176
Other IDs
Affiliation (Current)	2025: 横浜市立大学, 医学研究科, 教授
Affiliation (based on the past Project Information) *help	2025: 横浜市立大学, 医学部, 教授 2023: 横浜市立大学, 医学研究科, 教授 2018 – 2022: 横浜市立大学, 医学部, 准教授 2017: 大阪市立大学, 大学院医学研究科, 准教授 2016: 大阪市立大学, 大学院医学研究科, 特命准教授 … More 2014 – 2015: 大阪大学, 医学(系)研究科(研究院), 寄附講座准教授 2012 – 2013: 大阪大学, 医学部附属病院, 講師 2011: 大阪大学, 医学部附属病院, 特任講師(常勤) Less
Review Section/Research Field	Principal Investigator Basic Section 60030:Statistical science-related / Statistical science Except Principal Investigator Society medicine, Nursing, and related fields / Statistical science
Keywords	Principal Investigator カテゴリカルデータ / 選択デザイン / 臨床試験 / 正確検定 / 診断研究 / デザイン / 臨床研究 / 統計的推測 / 機械学習 / co-primary endpoints … More / macro-averaged / micro-averaged / co-primary / カテゴリカル変数 / F1スコア / サンプルサイズ / 非劣性検定 / 小標本 / カテゴリ併合 / 直交分解 / 累積確率モデル / モデルの分解 / 統計モデル / 経時データ / 順序カテゴリ / 分割表解析 … More Except Principal Investigator 医療・福祉 / 老年学 / 看護学 / フレイル / 医療 / 介護サービス / 介護予防 / エンドオブライフ / 介護給付 / 医療給付 / 虚弱 / 高齢者 / 疾患 / 死亡 / 入所 / 要介護化 / 要支援高齢者 / 国際共同試験 / Enrichmentデザイン / 部分集団解析 / 国際研究者交流 / エンリッチメントデザイン / 多重エンドポイント / 国際共同臨床試験 / 医薬品開発 / 個別化医療 / 臨床試験 / 生物統計学 Less

臨床研究におけるベイズ流アプローチによる新規デザイン・解析手法の開発Principal Investigator
- Principal Investigator
  
  山本紘司
- Project Period (FY)
  2025 – 2027
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 60030:Statistical science-related
- Research Institution
  Yokohama City University
Developing new statistical methods and designs for clinical research involving categorical variablesPrincipal Investigator
- Principal Investigator
  
  YAMAMOTO Kouji
- Project Period (FY)
  2021 – 2023
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 60030:Statistical science-related
- Research Institution
  Yokohama City University
Development of exact tests where the primary endpoint is a categorical variablePrincipal Investigator
- Principal Investigator
  
  YAMAMOTO Kouji
- Project Period (FY)
  2018 – 2022
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 60030:Statistical science-related
- Research Institution
  Yokohama City University
Transition of functional decline and long-term and health care service utilization until the death on ambulatory frail older adults
- Principal Investigator
  
  Kono Ayumi
- Project Period (FY)
  2017 – 2019
- Research Category
  
  Grant-in-Aid for Challenging Research (Exploratory)
- Research Field
  
  Society medicine, Nursing, and related fields
- Research Institution
  Osaka City University
Development of new statistical models in categorical data analysisPrincipal Investigator
- Principal Investigator
  
  Yamamoto Kouji
- Project Period (FY)
  2014 – 2016
- Research Category
  
  Grant-in-Aid for Young Scientists (B)
- Research Field
  
  Statistical science
- Research Institution
  Osaka City University
  Osaka University
Statistical Issues in Complex Medical Product Development
- Principal Investigator
  
  TOSHIMITSU Hamasaki
- Project Period (FY)
  2011 – 2013
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Statistical science
- Research Institution
  Osaka University

All 2024 2023 2022 2021 2020 2019 2016 2015 2014

All Journal Article Presentation

[Journal Article] Hypothesis testing procedure for binary and multi‐class <i>F</i><sub>1</sub>‐scores in the paired design2023
- Author(s)
  Takahashi Kanae、Yamamoto Kouji、Kuchiba Aya、Shintani Ayumi、Koyama Tatsuki
- Journal Title
  
  Statistics in Medicine
  
  Volume: 42 Issue: 23 Pages: 4177-4192
- DOI
  10.1002/sim.9853
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21K21170, KAKENHI-PROJECT-21K11790
[Journal Article] An exact test for comparing two predictive values in small‐size clinical trials2020
- Author(s)
  Takahashi, K. and Yamamoto, K.
- Journal Title
  
  Pharmaceutical Statistics
  
  Volume: 19 Issue: 1 Pages: 31-43
- DOI
  10.1002/pst.1968
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-18K11195, KAKENHI-PROJECT-18K17325
[Journal Article] A non-inferiority test and sample size determination for comparing two predictive values of diagnostic tests2020
- Author(s)
  Takahashi, K. and Yamamoto, K.
- Journal Title
  
  Communications in Statistics: Case Studies, Data Analysis and Applications
  
  Volume: 6 Issue: 2 Pages: 109-122
- DOI
  10.1080/23737484.2020.1719559
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18K11195, KAKENHI-PROJECT-18K17325
[Journal Article] Collapsed double symmetry model and its decomposition for square contingency tables2016
- Author(s)
  Yamamoto, K., Matsuda, Y. and Tomizawa, S.
- Journal Title
  
  International Journal of Statistics and Probability
  
  Volume: 5 Pages: 31-37
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26730017
[Journal Article] Measure of departure from sum-symmetry model for square contingency tables with ordered categories2016
- Author(s)
  Yamamoto, K., Aizawa, M. and Tomizawa, S.
- Journal Title
  
  Journal of Statistics: Advances in Theory and Applications
  
  Volume: 16 Issue: 1 Pages: 17-43
- DOI
  10.18642/jsata_7100121694
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26730017
[Journal Article] Decompositions of sum-symmetry model for ordinal square contingency tables2016
- Author(s)
  Yamamoto, K., Aizawa, M. and Tomizawa, S.
- Journal Title
  
  European Journal of Statistics and Probability
  
  Volume: ---
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-26730017
[Journal Article] Symmetry model based on bivariate normal distribution for square contingency tables with ordered categories2016
- Author(s)
  Yamamoto, K., Nakane, H. and Tomizawa, S.
- Journal Title
  
  Journal of Statistics: Advances in Theory and Applications
  
  Volume: 15 Issue: 2 Pages: 71-84
- DOI
  10.18642/jsata_7100121663
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26730017
[Journal Article] Measure of departure from symmetry for the analysis of collapsed square contingency tables with ordered categories2015
- Author(s)
  Yamamoto, K., Shimada, F. and Tomizawa, S.
- Journal Title
  
  Journal of Applied Statistics
  
  Volume: 42 Issue: 4 Pages: 866-875
- DOI
  10.1080/02664763.2014.993362
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-26730017
[Journal Article] Vision data analysis based on new statistical models and decompositions2015
- Author(s)
  Yamamoto, K., Ohama, M. and Tomizawa, S.
- Journal Title
  
  Annals of Biometrics and Biostatistics
  
  Volume: 2 Pages: 1019-1025
- Peer Reviewed / Acknowledgement Compliant / Open Access
- Data Source
  KAKENHI-PROJECT-26730017
[Presentation] 多値分類臨床検査データにおける感度，陽性的中率，F1 スコアの仮説検定2024
- Author(s)
  高橋佳苗，山本紘司
- Organizer
  2024年度応用統計学会年会
- Data Source
  KAKENHI-PROJECT-21K11790
[Presentation] A superiority test for comparing sensitivity, specificity, and predictive values of two diagnostic tests2023
- Author(s)
  Kanae Takahashi and Kouji Yamamoto
- Organizer
  The 37th International Workshop on Statistical Modelling
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21K11790
[Presentation] 潜在クラスモデルを用いたF1スコアによる検査法の性能比較2022
- Author(s)
  田村惇，三枝祐輔，山本紘司
- Organizer
  日本計算機統計学会第36回大会
- Data Source
  KAKENHI-PROJECT-18K11195
[Presentation] 2つの評価変数を考慮したflexibilityを有するランダム化第Ⅱ相選択デザイン2021
- Author(s)
  郷洋文，山本紘司
- Organizer
  日本計算機統計学会第35回大会
- Data Source
  KAKENHI-PROJECT-18K11195
[Presentation] 4.Test statistic for comparing single summary measures for multi-class classifiers2019
- Author(s)
  Yamamoto, K. and Takahashi, K.
- Organizer
  WNAR2019
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K11195
[Presentation] 陽性的中率・陰性的中率の比較における正確検定2019
- Author(s)
  高橋佳苗，山本紘司
- Organizer
  応用統計学会
- Data Source
  KAKENHI-PROJECT-18K11195
[Presentation] A non-inferiority test for comparing two predictive values of diagnostic tests2019
- Author(s)
  Kanae Takahashi and Kouji Yamamoto
- Organizer
  ENAR2019
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K11195
[Presentation] 要支援認定高齢者の医療・介護給付データからみた5年間の死亡までの経過と関連疾患2019
- Author(s)
  河野あゆみ，福島奈緒美，石原拓磨，吉行紀子，山本紘司
- Organizer
  第31回日本老年学会総会，合同ポスター賞発表，宮城
- Data Source
  KAKENHI-PROJECT-17K19831
[Presentation] Measure of departure from sum-symmetry model for square contingency tables having ordered categories2016
- Author(s)
  相澤愛奈，山本紘司，富澤貞男
- Organizer
  日本数学会
- Place of Presentation
  筑波大学
- Year and Date
  2016-03-19
- Data Source
  KAKENHI-PROJECT-26730017
[Presentation] 順序カテゴリ正方分割表における非対称モデルの提案2016
- Author(s)
  掛札純平，田畑耕治，山本紘司
- Organizer
  日本統計学会
- Place of Presentation
  東北大学
- Year and Date
  2016-03-05
- Data Source
  KAKENHI-PROJECT-26730017
[Presentation] カテゴリを併合した正方分割表における二重対称モデルと分解2016
- Author(s)
  松田裕也，山本紘司，富澤貞男
- Organizer
  日本統計学会
- Place of Presentation
  東北大学
- Year and Date
  2016-03-05
- Data Source
  KAKENHI-PROJECT-26730017
[Presentation] 分割表における連関尺度に基づく周辺非同等性の指標2016
- Author(s)
  茂木嶺志，田畑耕治，山本紘司
- Organizer
  日本統計学会
- Place of Presentation
  東北大学
- Year and Date
  2016-03-05
- Data Source
  KAKENHI-PROJECT-26730017
[Presentation] Symmetry models based on bivariate normal distribution for square ordinal tables and the performance2015
- Author(s)
  Yamamoto, K. and Tomizawa, S.
- Organizer
  Eighth International Workshop on Simulation
- Place of Presentation
  University of Natural Resources and Life Sciences (Austria)
- Year and Date
  2015-09-24
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26730017
[Presentation] 正方分割表における併合した表を用いた二重対称モデルと分解2015
- Author(s)
  松田裕也，山本紘司，富澤貞男
- Organizer
  日本計算機統計学会
- Place of Presentation
  まなぼっと幣舞（北海道）
- Year and Date
  2015-11-27
- Data Source
  KAKENHI-PROJECT-26730017
[Presentation] 正方分割表における累積確率を用いた周辺非同等性に関する尺度2014
- Author(s)
  安藤宗司，山本紘司，富澤貞男
- Organizer
  日本計算機統計学会
- Place of Presentation
  中央大学後楽園キャンパス
- Year and Date
  2014-05-18
- Data Source
  KAKENHI-PROJECT-26730017
[Presentation] 順序カテゴリ正方分割表における累積確率に基づくモデルの分解2014
- Author(s)
  安藤宗司，山本紘司，富澤貞男
- Organizer
  応用統計学会
- Place of Presentation
  統計数理研究所
- Year and Date
  2014-05-22
- Data Source
  KAKENHI-PROJECT-26730017

1. TOSHIMITSU Hamasaki (40379243)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
2. SUGIMOTO Tomoyuki (70324829)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
3. UESAKA Hiroyuki (60446250)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
4. HAYASHI Kenichi (70617274)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
5. SUGITANI Toshifumi (70626879)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
6. SOZU Takashi (80408723)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
7. TOMIZAWA Sadao (50188778)

# of Collaborated Projects: 1 results

# of Collaborated Products: 12 results
8. SHINTANI Ayumi (00724395)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
9. Kono Ayumi (00313255)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
10. 石原拓磨 (00783193)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
11. 金子勝規 (10708085)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
12. 高橋佳苗

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results

YAMAMOTO KOUJI 山本 紘司

Yamamoto Kouji 山本 紘司

Research Projects

Research Products

Co-Researchers

臨床研究におけるベイズ流アプローチによる新規デザイン・解析手法の開発Principal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Developing new statistical methods and designs for clinical research involving categorical variablesPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Development of exact tests where the primary endpoint is a categorical variablePrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Transition of functional decline and long-term and health care service utilization until the death on ambulatory frail older adults

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Development of new statistical models in categorical data analysisPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Statistical Issues in Complex Medical Product Development

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

[Journal Article] Hypothesis testing procedure for binary and multi‐class <i>F</i><sub>1</sub>‐scores in the paired design2023

Author(s)

Journal Title

DOI

Data Source

[Journal Article] An exact test for comparing two predictive values in small‐size clinical trials2020

Author(s)

Journal Title

DOI

Data Source

[Journal Article] A non-inferiority test and sample size determination for comparing two predictive values of diagnostic tests2020

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Collapsed double symmetry model and its decomposition for square contingency tables2016

Author(s)

Journal Title

Data Source

[Journal Article] Measure of departure from sum-symmetry model for square contingency tables with ordered categories2016

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Decompositions of sum-symmetry model for ordinal square contingency tables2016

Author(s)

Journal Title

Data Source

[Journal Article] Symmetry model based on bivariate normal distribution for square contingency tables with ordered categories2016

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Measure of departure from symmetry for the analysis of collapsed square contingency tables with ordered categories2015

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Vision data analysis based on new statistical models and decompositions2015

YAMAMOTO KOUJI 山本紘司

Yamamoto Kouji 山本紘司