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Morikawa Kousuke

森川 耕輔

Graduate School of Engineering Science Department of Systems Innovation, Associate Professor (Lecturer)

keyword Time series analysis,Geostatistics,Missing data analysis,Multivariate analysis,Statistical inference

Education

  • 2014/04 - 2017/12, Osaka University, Graduate School of Engineering Science, Division of Mathematical Science for Social Systems
  • 2012/04 - 2014/03, Osaka University, Graduate School of Engineering Science, Division of Mathematical Science for Social Systems
  • 2008/04 - 2012/03, Osaka University, Department of Engineering Science, Faculty of Information Science

Research History

  • 2020/10 - Present, Osaka University, Graduate School of Engineering Science Department of Systems Innovation Division of Mathematical Science for Social Systems
  • 2018/05 - Present, Earthquake Research Institute, The University of Tokyo, Research Center For Large Scale Earthquake, Tsunami and Disaster, Visiting Research Fellow
  • 2018/04 - 2020/09, Osaka University, Graduate School of Engineering Science Department of Systems Innovation Division of Mathematical Science, Assistant Professor
  • 2018/01 - 2018/03, Earthquake Research Institute, The University of Tokyo, Research Center For Large Scale Earthquake, Tsunami and Disaster, Specially Appointed Researcher
  • 2016/04 - 2017/12, Osaka University, Graduate School of Engineering Science, JSPS(DC2)

Research Areas

  • Informatics, Statistical science, Missing data analysis

Professional Memberships

  • 日本地震学会
  • American Statistical Association
  • JAPAN EPIDEMIOLOGICAL ASSOCIATION
  • THE BEHAVIORMETRIC SOCIETY
  • THE JAPAN STATISTICAL SOCIETY

Papers

  • Semiparametric optimal estimation with nonignorable nonresponse data, Kosuke Morikawa,Jae Kwang Kim, Annals of Statistics, Vol. 49, No. 5, p. 2991-3014, 2021
  • An Empirical Likelihood Approach to Reduce Selection Bias in Voluntary Samples (with discussion) and rejoinder, Kim, J. K.,Morikawa, K., Calcutta Statistical Association Bulletin, Vol. 75, p. 8-27, 2023
  • Adjusting for publication bias in meta-analysis via inverse probability weighting using clinical trial registries, Huang Ao,Morikawa Kosuke,Friede Tim,Hattori Satoshi, Biometrics, Wiley, 2022
  • G20 Summit and emergency medical services in Osaka, Japan, Tanaka, K,Morikawa, K,Katayama, Y,Kitamura, T,Sobue, T,Nakao, S,Nitta, M,Iwami, T,Fujimi, S,Uejima, T,Miyamoto, Y,Baba, T,Mizobata, Y,Kuwagata, Y,Matsuoka, T,Shimazu, T, Acute Medicine & Surgery, Vol. 8, No. 1, 2021
  • Bayesian Semiparametric Modeling of Response Mechanism for Nonignorable Missing Data, Sugasawa, S,Morikawa, K,Takahata, K, TEST, SPRINGER, 2021
  • Forecasting temporal variation of aftershocks immediately after a main shock using Gaussian process regression, Morikawa, K,Nagao, H,Ito, S,Terada, Y,Sakai, S,Hirata, N, Geophysical Journal International, Oxford University Press (OUP), Vol. 226, No. 2, p. 1018-1035, 2021
  • A least squares-type density estimator using a poly- nomial function, Im, J,Morikawa, K,H. T., Ha, Computational Statistics and Data Analysis, Vol. 144, 2020
  • Full Moon and Out-of-Hospital Cardiac Arrest in Japan: A Population-Based, Double-Controlled Case Series Analysis, Sado, S,Morikawa, K,Hattori, S,Matsuyama, T,Izawa,J. Iwami, T,Kitamura, Y,Sobue, T,Kitamura, T, Circulation Reports, Vol. 1, p. 199-205, 2019/04
  • Identification problem of transition models for repeated measurement data with nonignorable missing values, Kosuke Morikawa,Yutaka Kano, Journal of Multivariate Analysis, Academic Press Inc., Vol. 165, p. 216-230, 2018/05/01
  • A profile likelihood approach to semiparametric estimation with nonignorable nonresponse, Kosuke Morikawa, arXiv:1809.03645, 2018
  • A discussion of ‘statistical inference for nonignorable missing data problems: a selective review’ by Niansheng Tang and Yuanyuan Ju, Morikawa, K,Kim, J. K, Statistical Theory and Related Fields, Vol. 2, p. 140-140, 2018
  • On the equivalence of two semiparametric estimation methods for nonignorable nonresponse, Morikawa, K,Kim, J. K, Statistics & Probability Letters, Vol. 140, p. 1-6, 2018
  • Semiparametric maximum likelihood estimation with data missing not at random, Kosuke Morikawa,Jae Kwang Kim,Yutaka Kano, CANADIAN JOURNAL OF STATISTICS-REVUE CANADIENNE DE STATISTIQUE, WILEY, Vol. 45, No. 4, p. 393-409, 2017/12

Misc.

  • CDO1-2 不完全データに対する情報量規準(一般セッション 数学・統計(1)), 森川 耕輔,伊森 晋平,狩野 裕, 日本行動計量学会大会発表論文抄録集, 日本行動計量学会, Vol. 43, p. 66-67, 2015/09/01

Awards

  • Osaka University Award, Team Σ Global, 2023/10
  • 2015年度統計学会連合大会優秀報告賞, 森川 耕輔, 日本統計学会, 2015/09
  • 第7回日本統計学会春季集会ポスターセッション学生優秀発表賞, 森川 耕輔, 日本統計学会, 2014/03
  • 大阪大学大学院基礎工学研究科賞, 森川 耕輔, 大阪大学, 2013/03

Presentations

  • Prediction of Aftershocks With Gaussian Process Regression: Application to the 2004 Chuetsu Earthquake, JpGU-AGU Joint Meeting 2020, 2020/07/13
  • 経験尤度法を用いたNMAR データに対するセミパラメトリック多重代入法, 森川 耕輔,寺田 吉壱,Jae,Kwang Kim, 統計関連学会連合大会, 2019/09/11
  • Bias Correction for the Distribution of Aftershocks Within Short-Term Period Immediately After Large Mainshock, Morikawa, K,Nagao, H,Ito, S,Sakai, S,Hirata, N, Asia Oceania Geosciences Society, 2019/08/02
  • Bias Correction for the Distribution of Aftershocks Within Short-Term Period Immediately After Large Mainshock, Morikawa, K,Nagao, H,Ito, S,Sakai, S,Hirata, N, JpGU2019, 2019/05/27
  • A Profile Likelihood Approach to Semiparametric Estimation with Nonignorable Nonresponse, Kosuke Morikawa, Radiation Effects Research Foundation, 2018/10
  • Identification and Semiparametric Adaptive Estimation With Nonignorable Nonresponse Data., Morikawa, K,Kim. J. K,Kano, Y, International Federation of Classification Societies, 2017, 2017/08
  • Semiparametric Adaptive Estimation With Nonignorable Nonresponse Data., Morikawa, K,Kim, J. K, Joint statistical meeting, 2017, 2017/08
  • Semiparametric Efficient Estimation Under Nonignorable Nonresponse., Morikawa, K,Kim, J. K, The Korean Statistical Society, 2016, 2016/11
  • Semiparametric Efficient Estimation Under Nonignorable Nonresponse., Morikawa, K,Kim, J. K, Japanese Joint Statistical Meeting, 2016, 2016/09
  • Identification Problem for the Analysis of Binary Data with Non-ignorable Drop-out., Kosuke Morikawa, ISI-RSC 2014, 2014/11

Committee Memberships

  • 日本行動計量学会, 広報委員会インターネット小委員会, 2021/04 - Present
  • 2022年度統計関連学会連合大会, 運営委員, 2022/04 - 2023/03
  • 2021年度統計関連学会連合大会, 運営委員, 2021/03 - 2022/04