Rchr
J-GLOBAL ID：201801001117735650   Update date: Nov. 14, 2024

ISHII Ryota

イシイ リョウタ | ISHII Ryota
Affiliation and department：
University of Tsukuba Institute of Medicine

About University of Tsukuba Institute of Medicine


Job title： Assistant Professor
Homepage URL  (1)： https://sites.google.com/view/tsukuba-biostatistics/
Research field  (1)： Statistical science
Research keywords  (2)： Clinical trial ,  Biostatistics
Papers (63)：
  • Ryota Ishii, Tomohiro Ohigashi, Kazushi Maruo, Masahiko Gosho. geessbin: an R package for analyzing small-sample binary data using modified generalized estimating equations with bias-adjusted covariance estimators. BMC Medical Research Methodology. 2024. 24. 277
  • Masahiko Gosho, Ryota Ishii, Kengo Nagashima, Hisashi Noma, Kazushi Maruo. Determining the prior mean in Bayesian logistic regression with sparse data: a nonarbitrary approach. Journal of the Royal Statistical Society Series C: Applied Statistics. 2024
  • Kazushi Maruo, Ryota Ishii, Yusuke Yamaguchi, Tomohiro Ohigashi, Masahiko Gosho. Small sample adjustment for inference without assuming orthogonality in a mixed model for repeated measures analysis. Journal of Biopharmaceutical Statistics. 2024. 1-15
  • Ryota Ishii, Kazushi Maruo, Masaaki Doi, Masahiko Gosho. Finite-sample performance of the robust variance estimator in the presence of missing data. Communications in Statistics - Simulation and Computation. 2024. 53. 6. 2692-2703
  • Isogawa, Naoki, Grieve, Andy, Ishii, Ryota, Maruo, Kazushi. Performance Evaluation of Interim Analysis in Bioequivalence Studies. Therapeutic innovation & regulatory science. 2024
ｍore...
MISC (2)：
  • 滝沢 翼, 畝川 美悠紀, 渡邊 成美, 加川 志津子, 伊庭 知里, 中山 真吾, 中鉢 正太郎, 宮崎 直己, 竹村 亮, 石井 亮太, et al. タバコと片頭痛の関係についての臨床および基礎的検討. 神経治療学. 2021. 38. 6. S318-S318
  • 石井 亮太, 丸尾 和司, 五所 正彦. 加速モデルにおける対数尤度比統計量のBartlett補正. 日本計算機統計学会シンポジウム論文集. 2016. 30. 185-188
Lectures and oral presentations  (14)：
  • 小標本経時二値データの解析
    (2024年度統計関連学会連合大会)
  • Bias adjustment in an adaptive seamless design with different binary outcomes
    (45th Annual Conference of the International Society for Clinical Biostatistics)
  • 二値評価項目を用いたアダプティブシームレスデザインに対する解析法
    (2024年度日本計量生物学会年会)
  • Association between Microenvironment-Related Genes and Prognosis of Primary Central Nervous System Lymphoma
    (65th Annual Meeting of the American-Society-of-Hematology (ASH))
  • 異なる二値評価項目を用いたアダプティブシームレスデザインに対するバイアス補正法
    (日本計算機統計学会第37回シンポジウム)
ｍore...
Works (2)：
  • R package "geessbin": Modified Generalized Estimating Equations for Binary Outcome
    Ishii R 2023 - 現在
  • R package "bcmixed": Mixed Effect Model with the Box-Cox Transformation
    Maruo K, Ishii R 2020 - 現在
Education (4)：
  • 2017 - 2021 University of Tsukuba Graduate School of Comprehensive Human Sciences Doctoral program in Clinical Sciences
  • 2013 - 2015 Tohoku University Graduate School of Science Department of Mathematics
  • 2010 - 2013 Tohoku University Faculty of Science Department of Mathematics
  • 2005 - 2010 Gunma National College of Technology Department of Civil Engineering
Work history (3)：
  • 2021/04 - 現在 University of Tsukuba Faculty of Medicine Assistant Professor
  • 2018/09 - 2021/03 Keio University Hospital Clinical and Translational Research Center Project Assistant Professor
  • 2015/04 - 2018/08 Kowa Company, Ltd. Department of Data Science
Committee career (2)：
  • 2023/04 - 現在 Japanese Journal of Statistics and Data Science Associate Editor
  • 2023/04 - 現在 日本計量生物学会誌 「計量生物学」 編集委員
Awards (1)：
  • 2015/02 - 修士論文川井奨励賞
Association Membership(s) (3)：
JAPANESE SOCIETY OF COMPUTATIONAL STATISTICS ,  The Biometric Society of Japan ,  The International Biometric Society
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