Hayashi Kenichi 林賢一

… Alternative Names

HAYASHI Kenichi 林賢一

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Researcher Number	70617274
Affiliation (Current)	2025: 慶應義塾大学, 理工学部(矢上), 准教授
Affiliation (based on the past Project Information) *help	2018 – 2023: 慶應義塾大学, 理工学部(矢上), 准教授 2016 – 2017: 慶應義塾大学, 理工学部(矢上), 講師 2015: 慶應義塾大学, 理工学部, 講師 2011 – 2014: 大阪大学, 医学(系)研究科(研究院), 助教 2013: 大阪大学, 大学院・医学系研究科, 助教
Review Section/Research Field	Principal Investigator Basic Section 60030:Statistical science-related / Statistical science / Statistical science Except Principal Investigator Basic Section 60030:Statistical science-related / Statistical science
Keywords	Principal Investigator 医学統計学 / 統計科学 / 機械学習 / 生物統計 / 二値回帰モデル / power-IDI / IDI / C-index / 不均衡データ / マシューズ相関係数 … More / MCC / べき密度ダイバージェンス / ロバスト推定 / 欠測データ / 反応例解析 / pAUC / ノンコンプライアンス / 多値応答 / 混合治癒モデル / 解釈可能性 / 集団の異質性 / odds-IDI / 共変量調整 / 平均因果効果 / 平均治療効果 / 回帰モデル / 再帰分割法 / 生存時間モデル / 経時データ / 生存時間解析 / 因果推論 / 欠測値 / ROC / AUC / DIDI / クラスタワイズ回帰モデル / ROC解析 / NRI / 区間打ち切りデータ / C統計量 / クロスバリデーション / Decision Tree / 二重打ち切りデータ / 生存時間データ … More Except Principal Investigator オミックスデータ / マルチモーダル / 南雲平均 / コルモゴロフ / 混合化効果モデル / クラスター分析 / 準線形モデル / 最適治療 / メタ解析 / 混合モデル / ポアソン点過程 / 幾何平均・算術平均 / 一般化平均 / パレート分布 / クラスタリング / メタアナリシス / 生存解析 / 混合効果モデル / コピュラ関数 / 種の分布モデル / 情報幾何 / 動的治療計画 / メタアナライシス / 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

不均衡データに対する解析法の統合的理解と生存時間解析への発展的応用Principal Investigator
- Principal Investigator
  
  林賢一
- Project Period (FY)
  2023 – 2026
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 60030:Statistical science-related
- Research Institution
  Keio University
Development of statistical models for data containing heterogeneous subgroups using statistical learning theory and its application to clinical medicinePrincipal Investigator
- Principal Investigator
  
  Hayashi Kenichi
- Project Period (FY)
  2018 – 2023
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 60030:Statistical science-related
- Research Institution
  Keio University
Developments and applications of statistical prediction method
- Principal Investigator
  
  Eguchi Shinto
- Project Period (FY)
  2018 – 2022
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 60030:Statistical science-related
- Research Institution
  The Institute of Statistical Mathematics
A study on exploratory identification of responsive subgroups in complex survival event dataPrincipal Investigator
- Principal Investigator
  
  Hayashi Kenichi
- Project Period (FY)
  2015 – 2017
- Research Category
  
  Grant-in-Aid for Young Scientists (B)
- Research Field
  
  Statistical science
- Research Institution
  Keio University
Development of C-index-based survival tree and its application to biomedical researchPrincipal Investigator
- Principal Investigator
  
  HAYASHI Kenichi
- Project Period (FY)
  2012 – 2014
- Research Category
  
  Grant-in-Aid for Young Scientists (B)
- Research Field
  
  Statistical science
- Research Institution
  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

[Book] Rで学ぶ統計的データ解析2020
- Author(s)
  林賢一
- Total Pages
  352
- Publisher
  講談社サイエンティフィク
- ISBN
  9784065186190
- Data Source
  KAKENHI-PROJECT-18K11197
[Book] 機械学習データを読み解くアルゴリズムの技法2017
- Author(s)
  ピーターフラッハ (著)，竹村彰通 (監修)，田中研太郎 (翻訳)，小林景 (翻訳)，兵頭昌 (翻訳)，片山翔太 (翻訳)，山本倫生 (翻訳)，吉田拓真 (翻訳)，林賢一 (翻訳)，松井秀俊 (翻訳)，小泉和之 (翻訳)，永井勇 (翻訳)
- Total Pages
  392
- Publisher
  朝倉書店
- ISBN
  9784254122183
- Data Source
  KAKENHI-PROJECT-15K15950
[Journal Article] 疫学分野での計量生物学の発展2024
- Author(s)
  田栗正隆、高橋邦彦、小向翔、伊藤ゆり、服部聡、船渡川伊久子、篠崎智大、山本倫生、林賢一
- Journal Title
  
  計量生物学
  
  Volume: 44 Pages: 129-200
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18K11197
[Journal Article] Micro-Internal Short Circuit Detection in Lithium-Ion Batteries Based on <i>k</i>-Nearest Neighbor Method2023
- Author(s)
  志村重輔、林沙織、岡安悟志、板垣昌幸、林賢一
- Journal Title
  
  Bulletin of Data Analysis of Japanese Classification Society
  
  Volume: 12 Issue: 1 Pages: 1-15
- DOI
  10.32146/bdajcs.12.1
- ISSN
  2186-4195, 2434-3382
- Year and Date
  2023-09-01
- Language
  Japanese
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-23K11013, KAKENHI-PROJECT-18K11197
[Journal Article] Model Selection with Missing Data Embedded in Missing-at-Random Data2023
- Author(s)
  Takai Keiji、Hayashi Kenichi
- Journal Title
  
  Stats
  
  Volume: 6 Issue: 2 Pages: 495-505
- DOI
  10.3390/stats6020031
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-23K11013, KAKENHI-PROJECT-18K11197, KAKENHI-PROJECT-18K11205
[Journal Article] An Accelerated Failure Time Cure Model with Shifted Gamma Frailty and Its Application to Epidemiological Research2022
- Author(s)
  Aida Haro、Hayashi Kenichi、Takeuchi Ayano、Sugiyama Daisuke、Okamura Tomonori
- Journal Title
  
  Healthcare
  
  Volume: 10 Issue: 8 Pages: 1383-1383
- DOI
  10.3390/healthcare10081383
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-18K11197
[Journal Article] A nationwide randomised, double-blind, placebo-controlled physicians’ trial of loxoprofen for the treatment of fatigue, headache, and nausea after hangovers2020
- Author(s)
  Hara, M., Hayashi,K., Kitamura, T., Honda, M., Tamaki, M.
- Journal Title
  
  Alcohol
  
  Volume: 84 Pages: 21-25
- DOI
  10.1016/j.alcohol.2019.10.006
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-18K11197
[Journal Article] Pulmonary vein isolation alone vs. more extensive ablation with defragmentation and linear ablation of persistent atrial fibrillation: the EARNEST-PVI trial2020
- Author(s)
  Inoue, K., Hikoso,S., Masuda, M., Furukawa, Y., Hirata, A., Egami, Y., Watanabe, T., Minamiguchi, H., Miyoshi, M., Tanaka, N., Oka, T., Okada, M., Kanda, T., Matsuda, Y., Kawasaki, M., Hayashi, K., Kitamura, T., Dohi, T., Sunaga, A., Mizuno, H., Nakatani, D., Sakata, Y.
- Journal Title
  
  EP Europace
  
  Volume: 23 Issue: 4 Pages: 565-574
- DOI
  10.1093/europace/euaa293
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18K11197
[Journal Article] Effect of extensive ablation on recurrence in patients with persistent ptrial fibrillation treated with pulmonary cein isolation (EARNEST-PVI) trial: design and rationale2019
- Author(s)
  Dohi, T., Nakatani, D., Inoue, K., Hikoso, S. Oka, T. Hayashi, K., Masuda, M., Furukawa, Y., Kawasaki, M., Egami,Y., Kashiwase, K., Hirata, A., Watanabe, T., … Sakata,Y.
- Journal Title
  
  Journal of Cardiology
  
  Volume: 74 Issue: 2 Pages: 64-68
- DOI
  10.1016/j.jjcc.2019.01.010
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18K11197
[Journal Article] The power‐integrated discriminant improvement: an accurate measure of the incremental predictive value of additional biomarkers2019
- Author(s)
  Hayashi, K., Eguchi, S.
- Journal Title
  
  Statistics in Medicine
  
  Volume: 印刷中 Issue: 14 Pages: 2589-2604
- DOI
  10.1002/sim.8135
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18H03211, KAKENHI-PROJECT-18K11197
[Journal Article] Asymptotic comparison of semi-supervised and supervised linear discriminant functions for heteroscedastic normal populations2018
- Author(s)
  Kenichi Hayashi
- Journal Title
  
  Advances in Data Analysis and Classification
  
  Volume: - Issue: 2 Pages: 315-339
- DOI
  10.1007/s11634-016-0266-6
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15K15950, KAKENHI-PROJECT-18K11197
[Journal Article] 統計学は錬金術ではない2018
- Author(s)
  林賢一
- Journal Title
  
  心理学評論
  
  Volume: 61 Pages: 147-155
- NAID
  130007678122
- Data Source
  KAKENHI-PROJECT-18K11197
[Journal Article] Estimation of a concordance probability for doubly censored time-to-event data2018
- Author(s)
  Kenichi Hayashi, Yasutaka Shimizu
- Journal Title
  
  Statistics in Biosciences
  
  Volume: - Issue: 3 Pages: 546-567
- DOI
  10.1007/s12561-018-9216-5
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15K15950, KAKENHI-PROJECT-18K11197, KAKENHI-PROJECT-18H03211
[Journal Article] Relationship between cell-mediated immunity to Varicella-Zoster virus and aging in subjects from the community-based Shozu Herpes Zoster study2017
- Author(s)
  Risako Shirane, Huamin Tang, Kenichi Hayashi, Yoshinobu Okuno, Hiroyasu Iso, Hideo Asada, Koichi Yamanishi, Yasuko Mori
- Journal Title
  
  Journal of Medical Virology
  
  Volume: 89 Issue: 2 Pages: 313-317
- DOI
  10.1002/jmv.24629
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15K15950
[Journal Article] Outcomes differ by first documented rhythm after witnessed out-of-hospital cardiac arrest in children; an observational study with prospective nationwide population-based cohort database in Japan2016
- Author(s)
  Hara M, Hayashi K, Kitamura T
- Journal Title
  
  European Heart Journal - Quality of Care and Clinical Outcomes
  
  Volume: 3 Issue: 1 Pages: 83-92
- DOI
  10.1093/ehjqcco/qcw040
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-16K09034, KAKENHI-PROJECT-15K15950
[Journal Article] Injustice Experience Questionnaire, Japanese Version: Cross-Cultural Factor-Structure Comparison and Demographics Associated with Perceived Injustice.2016
- Author(s)
  Yamada K, Adachi T, Mibu A, Nishigami T, Motoyama Y, Uematsu H, Matsuda Y, Sato H, Hayashi K, Cui R, Takao Y, Shibata M, Iso H
- Journal Title
  
  PloS One
  
  Volume: 11 Issue: 8 Pages: e0160567-e0160567
- DOI
  10.1371/journal.pone.0160567
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-26750207, KAKENHI-PROJECT-15K15950
[Journal Article] Different Impacts of Time From Collapse to First Cardiopulmonary Resuscitation on Outcomes After Witnessed Out-of-Hospital Cardiac Arrest in Adults2015
- Author(s)
  Masahiko Hara, Kenichi Hayashi, SHungo Hikoso, Yasushi Sakata, Tetsuhisa Kitamura
- Journal Title
  
  Circulation: Cardiovascular Quality and Outcomes
  
  Volume: 未定 Issue: 3 Pages: 277-284
- DOI
  10.1161/circoutcomes.115.001864
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15K15950, KAKENHI-PROJECT-25870391
[Journal Article] Clustering of multivariate binary data with dimension reduction via L1-regularized likelihood maximization2015
- Author(s)
  Michio Yamamoto, Kenichi Hayashi
- Journal Title
  
  Pattern Recognition
  
  Volume: 48 Issue: 12 Pages: 3959-3968
- DOI
  10.1016/j.patcog.2015.05.026
- NAID
  120005690145
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15K15950, KAKENHI-PROJECT-26730016
[Journal Article] Impact of Body Size on Inferior Vena Cava Parameters for Estimating Right Atrial Pressure: A Need for Standardization?2015
- Author(s)
  Tatsunori Taniguchi, Tomohiro Ohtani, Satoshi Nakatani, Kenichi Hayashi, Osamu Yamaguchi, Issei Komuro, Yasushi Sakata
- Journal Title
  
  Journal of the American Society of Echocardiography
  
  Volume: 28 Issue: 12 Pages: 1420-1427
- DOI
  10.1016/j.echo.2015.07.008
- Data Source
  KAKENHI-PROJECT-15K15950
[Journal Article] Effects of unlabeled data on classification error in normal discriminant analysis2014
- Author(s)
  Keiji Takai, Kenichi Hayashi
- Journal Title
  
  Journal of Statistical Planning and Inference
  
  Volume: 147 Pages: 66-83
- DOI
  10.1016/j.jspi.2013.11.004
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-24700276, KAKENHI-PROJECT-26730022
[Journal Article] Finite-sample analysis of impacts of unlabelled data and their labelling mechanisms in linear discriminant analysis2014
- Author(s)
  Kenichi Hayashi, Keiji Takai
- Journal Title
  
  Communications in Statistics -Simulation and Computation
  
  Volume: - Issue: 1 Pages: 184-203
- DOI
  10.1080/03610918.2014.957847
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-24700276, KAKENHI-PROJECT-15K15950, KAKENHI-PROJECT-26730022, KAKENHI-PROJECT-16H02034
[Journal Article] Sample size determination in group-sequential clinical trials with two co-primary endpoints2014
- Author(s)
  Asakura, K., Hamasaki, T., Sugimoto, T., Hayashi, K., Evans, S., Sozu T
- Journal Title
  
  Statistics in Medicine
  
  Volume: (First published online) Issue: 17 Pages: 2897-2913
- DOI
  10.1002/sim.6154
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-22300096, KAKENHI-PROJECT-23500348, KAKENHI-PROJECT-24700276, KAKENHI-PROJECT-25870332, KAKENHI-PROJECT-26330032, KAKENHI-PROJECT-26330038
[Journal Article] A boosting method with asymmetric mislabeling probabilities which depend on covariates2012
- Author(s)
  Kenichi Hayashi
- Journal Title
  
  Computational Statistics
  
  Volume: 27 Issue: 2 Pages: 203-218
- DOI
  10.1007/s00180-011-0250-8
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-24700276
[Journal Article] Estimation of the Variance for the Maximum Likelihood Estimates in Normal Mixture Models and Normal Hidden Markov Models2011
- Author(s)
  Masanari Iida and Naoto Niki
- Journal Title
  
  Journal of the Japanese Society of Computational Statistics
  
  Volume: 24 Issue: 1 Pages: 39-66
- DOI
  10.5183
- NAID
  10030497169
- ISSN
  0915-2350, 1881-1337
- Language
  English
- Peer Reviewed / Acknowledgement Compliant / Open Access
- Data Source
  KAKENHI-PROJECT-24500350, KAKENHI-PROJECT-24700276, KAKENHI-PROJECT-25610035, KAKENHI-PROJECT-26240003, KAKENHI-PROJECT-26330031, KAKENHI-PROJECT-15K00051
[Presentation] 生存ー経時同時モデルに対する異質な部分集団への再帰分割法2023
- Author(s)
  名取京太郎，林賢一
- Organizer
  2023年度日本分類学会大会
- Data Source
  KAKENHI-PROJECT-18K11197
[Presentation] Asymptotic properties of Matthews correlation coefficient2023
- Author(s)
  Yuki Itaya, Jun Tamura, Kenichi Hayashi, Kouji Yamamoto
- Organizer
  The 8th Japanese-German Symposium on Classification
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K11197
[Presentation] Asymptotic properties of the Matthews correlation coefficient2023
- Author(s)
  Yuki Itaya, Jun Tamura, Kenichi Hayashi, Kouji Yamamoto
- Organizer
  The 8th Japanese-German Symposium on Classification
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23K11013
[Presentation] 生存－経時同時モデルに対する異質な部分集団への再帰分割法2023
- Author(s)
  名取京太朗，林賢一
- Organizer
  2023 年度日本分類学会大会
- Data Source
  KAKENHI-PROJECT-23K11013
[Presentation] Odds-based predictive improvement index for binary regression models2022
- Author(s)
  Kenichi Hayashi, Shinto Eguchi
- Organizer
  The 11th Conference of the IASC-ARS
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18H03211
[Presentation] k近傍法を用いたリチウムイオン電池の微小内部短絡検出2022
- Author(s)
  志村重輔，林沙織，岡安悟志，板垣昌幸，林賢一
- Organizer
  日本分類学会
- Data Source
  KAKENHI-PROJECT-18K11197
[Presentation] Odds-based predictive improvement index for binary regression models2022
- Author(s)
  Kenichi Hayashi, Shinto Eguchi
- Organizer
  The 11th Conference of the IASC-ARS The Asian Regional Section of the International Association for Statistical Computing
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K11197
[Presentation] 無作為化比較試験における半教師あり学習を用いたリスク差の推定2022
- Author(s)
  林賢一，吉牟田迪弥
- Organizer
  日本計量生物学会年会
- Data Source
  KAKENHI-PROJECT-18K11197
[Presentation] A new integrated discriminant improvement index via odds2021
- Author(s)
  林賢一，江口真透
- Organizer
  日本計量生物学会年会
- Data Source
  KAKENHI-PROJECT-18K11197
[Presentation] 二値回帰モデルに対するオッズに基づいた予測改善指標2021
- Author(s)
  林賢一，江口真透
- Organizer
  日本計算機統計学会第35回シンポジウム
- Data Source
  KAKENHI-PROJECT-18K11197
[Presentation] オッズに基づく二値回帰モデルの予測力改善指標2021
- Author(s)
  林　賢一，江口　真透
- Organizer
  計算機統計学会
- Data Source
  KAKENHI-PROJECT-18H03211
[Presentation] A new integrated discriminant improvement index via odds2021
- Author(s)
  林　賢一，江口　真透
- Organizer
  計量生物学会
- Data Source
  KAKENHI-PROJECT-18H03211
[Presentation] シフトガンマフレイルティを伴う加速時間治癒モデルとその疫学研究への応用2020
- Author(s)
  会田晴郎，林賢一
- Organizer
  統計関連学会連合大会
- Data Source
  KAKENHI-PROJECT-18K11197
[Presentation] A variable selection criterion for competing risk data with pseudo-observations2019
- Author(s)
  Tajima, F., Hayashi, K.
- Organizer
  The 6th International Society for Biopharmaceutical Statistics
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K11197
[Presentation] A model selection criterion for missing data with MAR mechanism but NMAR for its subsets2019
- Author(s)
  Hayashi, K., Takai, K.
- Organizer
  International conference Data Science, Statistics & Visualisation (A Satellite Conference of the 62nd World Statistics Congress promoted by IASC)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K11197
[Presentation] Estimation of causal effects in the presence of noncom- pliance without actual treatment information2019
- Author(s)
  Hayashi, K., Taguri, M.
- Organizer
  The 40th Annual Conference of the International Society for Clinical Biostatistics
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18K11197
[Presentation] Power-IDI：IDIに基づく予測能改善の定量化2019
- Author(s)
  林賢一, 江口真透
- Organizer
  統計関連学会連合大会
- Invited
- Data Source
  KAKENHI-PROJECT-18H03211
[Presentation] A new composite estimand for regulatory clinical trials with dropouts2018
- Author(s)
  Taguri, M., Hayashi, K.
- Organizer
  The 29th International Biometric Conference
- Data Source
  KAKENHI-PROJECT-18K11197
[Presentation] 中間事象を伴う臨床試験における複合ストラテジーの検討2018
- Author(s)
  田栗正隆，林賢一
- Organizer
  日本計量生物学会年会
- Data Source
  KAKENHI-PROJECT-15K15950
[Presentation] A new composite estimand for regulatory clinical trials with dropouts2018
- Author(s)
  Taguri, M., Hayashi, K.
- Organizer
  The 29th International Biometric Conference, Barcelona
- Data Source
  KAKENHI-PROJECT-18H03211
[Presentation] Cluster-wise regression models via a quasi-linear function2017
- Author(s)
  Kenichi Hayashi
- Organizer
  The International Association of Statistical Computing (Asian Regional Section) Joint Conference
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K15950
[Presentation] Cluster-wise regression models via a quasi-linear function2017
- Author(s)
  林賢一，江口真透
- Organizer
  統計関連学会連合大会
- Data Source
  KAKENHI-PROJECT-15K15950
[Presentation] Semi-supervised learning for normal populations: a perspective from statistical missing data analysis2017
- Author(s)
  Kenichi Hayashi
- Organizer
  The 2017 Conference of International Federation of Classification
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K15950
[Presentation] Integrated discrimination improvementの問題点とその修正2016
- Author(s)
  林賢一，江口真透
- Organizer
  統計関連学会連合大会
- Place of Presentation
  金沢大学（石川県金沢市）
- Data Source
  KAKENHI-PROJECT-15K15950
[Presentation] Modification of integrated discrimination improvement by beta divergence2016
- Author(s)
  Kenichi Hayashi, Shinto Eguchi
- Organizer
  The 28th International Biometric Conference
- Place of Presentation
  Victoria (Canada)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K15950
[Presentation] MARデータにおける変数の部分集合に対する情報量規準2016
- Author(s)
  林賢一，高井啓二
- Organizer
  統計関連学会連合大会
- Place of Presentation
  金沢大学（石川県金沢市）
- Data Source
  KAKENHI-PROJECT-15K15950
[Presentation] An information criterion for a subset of MAR data2015
- Author(s)
  Keiji Takai, Kenichi Hayashi
- Organizer
  The 8th International Conference of the ERCIM WG on Computational and Methodological Statistics
- Place of Presentation
  London (UK)
- Year and Date
  2015-12-12
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K15950
[Presentation] Computing C-statistic with interval censored data2015
- Author(s)
  Kenichi Hayashi
- Organizer
  The 8th International Conference of the ERCIM WG on Computational and Methodological Statistics
- Place of Presentation
  London (UK)
- Year and Date
  2015-12-12
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K15950
[Presentation] Evaluating discriminant performance of a semi-supervised linear discriminant analysis against a supervised one for heteroscedastic normal populations2013
- Author(s)
  Kenichi Hayashi
- Organizer
  2013 Joint Statistical Meeting
- Place of Presentation
  Palais des congres de Montreal, Canada
- Data Source
  KAKENHI-PROJECT-24700276
[Presentation] 多変量二値データに対する次元縮約を伴うクラスター分析法2013
- Author(s)
  山本倫生，林賢一
- Organizer
  2013年度統計関連学会連合大会
- Place of Presentation
  大阪大学
- Data Source
  KAKENHI-PROJECT-24700276
[Presentation] Sample size evaluation in group sequential designs for clinical trials with two continuous endpoints as co-primary contrasts2013
- Author(s)
  Koko Asakura, Kenichi Hayashi, Takashi Sugimoto, Takashi Sozu, Toshimitsu Hamasaki
- Organizer
  2013 Joint Statistical Meeting
- Place of Presentation
  Palais des congres de Montreal, Canada
- Data Source
  KAKENHI-PROJECT-24700276
[Presentation] 生存時間データにおけるモデル評価の一考察2013
- Author(s)
  林賢一
- Organizer
  研究集会「統計手法における近年の話題とその応用」
- Place of Presentation
  KKRホテル広島
- Data Source
  KAKENHI-PROJECT-24700276
[Presentation] 打ち切りを伴う生存時間データに対するC統計量のバイアスについて2013
- Author(s)
  林賢一
- Organizer
  日本計算機統計学会第27回大会
- Place of Presentation
  弘前大学
- Data Source
  KAKENHI-PROJECT-24700276
[Presentation] Clustering of multivariate binary data via penalized latent class analysis with dimension reduction2013
- Author(s)
  Michio Yamamoto, Kenichi Hayashi
- Organizer
  The 6th International Conference of the ERCIM WG on Computational and Methodological Statistics
- Place of Presentation
  University of London, UK
- Data Source
  KAKENHI-PROJECT-24700276
[Presentation] Sample size evaluation in group sequential designs for clinical trials with two continuous endpoints as co-primary contrasts2013
- Author(s)
  Asakura K, Hayashi K, Sugimoto T, Sozu T, Hamasaki T
- Organizer
  Joint Statistical Meetings 2013
- Place of Presentation
  Montreal, Quebec, Canada
- Data Source
  KAKENHI-PROJECT-23500348
[Presentation] Model-based clustering for multivariate binary data with dimension reduction2013
- Author(s)
  Michio Yamamoto, Kenichi Hayashi
- Organizer
  2013 Joint Statistical Meeting
- Place of Presentation
  Palais des congres de Montreal, Canada
- Data Source
  KAKENHI-PROJECT-24700276
[Presentation] Sample size determination in group sequential trials with two co-primary endpoints2012
- Author(s)
  Asakura K, Hayashi K, Sugimoto T, Sozu T, Hamasaki T
- Organizer
  The XXVIth International Biometric Conference
- Place of Presentation
  Kobe, Japan
- Data Source
  KAKENHI-PROJECT-23500348
[Presentation] 二つの主要変数をもつ群逐次試験の標本サイズの設計と評価2012
- Author(s)
  朝倉こう子・林賢一・杉本知之・寒水孝司・濱崎俊光
- Organizer
  日本計量生物学会2012年度年会・講演予稿集
- Place of Presentation
  統計数理研究所, 東京
- Data Source
  KAKENHI-PROJECT-23500348
[Presentation] 二つの主要変数をもつ群逐次試験の標本サイズの設計2011
- Author(s)
  朝倉こう子･林　賢一･杉本知之･寒水孝司･濱崎俊光
- Organizer
  2011年度統計関連学会連合大会
- Place of Presentation
  九州大学（福岡県）
- Data Source
  KAKENHI-PROJECT-23500348
[Presentation] 二つの主要変数をもつ群逐次試験の標本サイズの設計2011
- Author(s)
  朝倉こう子・林賢一・杉本知之・寒水孝司・濱崎俊光
- Organizer
  2011年度統計関連学会連合大会
- Place of Presentation
  九州大学
- Data Source
  KAKENHI-PROJECT-23500348
[Presentation] Design and data monitoring of clinical trials with co-primary benefit : risk endpoints using prediction2011
- Author(s)
  Evans SR. Hamasaki T, Hayashi K
- Organizer
  Joint Meeting of the 2011 Taipei International Statistical Symposium and the 7th Conference of Asian Regional Section of the IASC
- Place of Presentation
  Taipei, Taiwan
- Data Source
  KAKENHI-PROJECT-23500348
[Presentation] Design and data monitoring of clinical trials with co-primary benefit:risk endpoints using prediction2011
- Author(s)
  Evans S. Hamasaki T, Hayashi K
- Organizer
  Joint Meeting of the 2011 Taipei International Statistical Symposium and the 7th Conference of Asian Regional Section of the IASC
- Place of Presentation
  Taipei, Taiwan
- Data Source
  KAKENHI-PROJECT-23500348
[Presentation] 二つの主要変数をもつ群逐次試験の標本サイズの設計と評価
- Author(s)
  朝倉こう子･林　賢一･杉本知之･寒水孝司･濱﨑俊光
- Organizer
  日本計量生物学会 2012年度年会
- Place of Presentation
  統計数理研究所, 立川，東京
- Data Source
  KAKENHI-PROJECT-23500348
[Presentation] Consistent estimators of a concordance probability for doubly-censored time-to-event responses
- Author(s)
  林賢一，清水泰隆
- Organizer
  2014年度統計関連学会連合大会
- Place of Presentation
  東京大学
- Year and Date
  2014-09-13 – 2014-09-16
- Data Source
  KAKENHI-PROJECT-24700276
[Presentation] The effects of unlabeled data on a linear discriminant function for heteroscedastic normal populations
- Author(s)
  林賢一
- Organizer
  2012年度統計関連学会連合大会
- Place of Presentation
  北海道大学
- Data Source
  KAKENHI-PROJECT-24700276
[Presentation] On the nonparametric estimation of a concordance probability for doubly-censored time-to-event response
- Author(s)
  Kenichi Hayashi
- Organizer
  The 26th International Biometric Conference
- Place of Presentation
  Firenze Fiera, Italy
- Year and Date
  2014-07-06 – 2014-07-11
- Data Source
  KAKENHI-PROJECT-24700276
[Presentation] Simultaneous analysis of clustering and dimension reduction for binary variables with application to biomedical data
- Author(s)
  Michio Yamamoto, Kenichi Hayashi
- Organizer
  The 26th International Biometric Conference
- Place of Presentation
  Firenze Fiera, Italy
- Year and Date
  2014-07-06 – 2014-07-11
- Data Source
  KAKENHI-PROJECT-24700276

1. TOSHIMITSU Hamasaki (40379243)

# of Collaborated Projects: 1 results

# of Collaborated Products: 8 results
2. SUGIMOTO Tomoyuki (70324829)

# of Collaborated Projects: 1 results

# of Collaborated Products: 7 results
3. UESAKA Hiroyuki (60446250)

# of Collaborated Projects: 1 results

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

# of Collaborated Projects: 1 results

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

# of Collaborated Projects: 1 results

# of Collaborated Products: 6 results
6. Eguchi Shinto (10168776)

# of Collaborated Projects: 1 results

# of Collaborated Products: 5 results
7. 山本紘司 (10548176)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
8. 小森理 (60586379)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
9. NISHIGAMI Tomohiko

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
10. 北村哲久

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results

Hayashi Kenichi 林 賢一

HAYASHI Kenichi 林 賢一

Research Projects

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不均衡データに対する解析法の統合的理解と生存時間解析への発展的応用Principal Investigator

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Development of statistical models for data containing heterogeneous subgroups using statistical learning theory and its application to clinical medicinePrincipal Investigator

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Developments and applications of statistical prediction method

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A study on exploratory identification of responsive subgroups in complex survival event dataPrincipal Investigator

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Development of C-index-based survival tree and its application to biomedical researchPrincipal Investigator

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Statistical Issues in Complex Medical Product Development

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[Book] Rで学ぶ統計的データ解析2020

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[Book] 機械学習 データを読み解くアルゴリズムの技法2017

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[Journal Article] 疫学分野での計量生物学の発展2024

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[Journal Article] Micro-Internal Short Circuit Detection in Lithium-Ion Batteries Based on <i>k</i>-Nearest Neighbor Method2023

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[Journal Article] Model Selection with Missing Data Embedded in Missing-at-Random Data2023

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[Journal Article] An Accelerated Failure Time Cure Model with Shifted Gamma Frailty and Its Application to Epidemiological Research2022

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[Journal Article] A nationwide randomised, double-blind, placebo-controlled physicians’ trial of loxoprofen for the treatment of fatigue, headache, and nausea after hangovers2020

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Hayashi Kenichi 林賢一

HAYASHI Kenichi 林賢一

[Book] 機械学習データを読み解くアルゴリズムの技法2017