Faculty Profiles - MOMOKI Koki

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MOMOKI Koki

Organization

Research Field in Science, Science and Engineering Area Graduate School of Science and Engineering (Science) Assistant Professor

Degree

Doctor of Philosophy in Science (2025.3 Kagoshima University)

Contact information

Homepage

https://sites.google.com/view/koki-momoki

Research Interests

Extreme value analysis

Research Areas

Statistical science, Applied mathematics and statistics

Education

2022.4 - 2025.3 Kagoshima University Graduate School of Science and Engineering (Doctoral Course) Interdisciplinary Department of Science and Engineering
2020.4 - 2022.3 Kagoshima University Graduate School of Science and Engineering (Master’s Course) Department of Science
2016.4 - 2020.3 Kagoshima University Faculty of Science Department of Mathematics and Informatics

Research History

2025.4 Kagoshima University Research Field in Science, Science and Engineering Area Graduate School of Science and Engineering (Science) Assistant Professor

Papers

Takuma Yoshida, Koki Momoki, Shuichi Kawano . Structural grouping of extreme value models via graph fused lasso . arXiv:2602.15291 2026.2

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Language：English
Koki Momoki, Takuma Yoshida . Small area estimation of dependent extreme value indices . arXiv:2601.03647 2026.1

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Authorship：Lead author Language：English Publishing type：Research paper (scientific journal)
KoKi Momoki, Takuma Yoshida . Mixed effects models for extreme value index regression . Communications in Statistics - Theory and Methods54 ( 19 ) 1 - 18 2025.1Reviewed

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Authorship：Lead author,　Corresponding author Language：English Publishing type：Research paper (scientific journal)

DOI： 10.1080/03610926.2025.2450769

Scopus
KoKi Momoki, Takuma Yoshida . Hypothesis testing for varying coefficient models in tail index regression . Statistical Papers65 ( 6 ) 3821 - 3852 2024.4Reviewed

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Authorship：Lead author,　Corresponding author Language：English Publishing type：Research paper (scientific journal)

DOI： 10.1007/s00362-024-01538-0

Scopus

Presentations

Koki Momoki, Takuma Yoshida Mixed effects models for large sized clustered extremes International conference

The 6th International Conference on Econometrics and Statistics 2023.8

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Event date： 2023.8

Language：English Presentation type：Oral presentation (general)

Venue：Waseda University, Tokyo, Japan
Koki Momoki, Takuma Yoshida Varying coefficient models for extreme value index regression International conference

The 11th Conference of the IASC-ARS 2022.2

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Event date： 2022.2

Language：Japanese Presentation type：Oral presentation (general)

Venue：Doshisha University, Kyoto, Japan
桃木光輝; 吉田拓真 Sparse functional data analysis for extreme values Invited

広島統計グループ金曜セミナー 2026.5

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Event date： 2026.5

Language：Japanese Presentation type：Oral presentation (general)

Venue：広島大学 Country：Japan
桃木光輝数理情報科学プログラムにおける統計科学教育・研究について Invited

DXコネクトセンターシンポジウム 2026.2

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Event date： 2026.2

Language：Japanese Presentation type：Oral presentation (general)
桃木光輝極値関数データ解析のための統計モデリング Invited

鹿児島大学数理情報科学談話会（第247回） 2025.10

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Event date： 2025.10

Language：Japanese Presentation type：Oral presentation (general)
桃木光輝, 吉田拓真 Extreme value modeling for functional data Invited

ベイズ統計サマーシンポジウム 2025.9

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Event date： 2025.9

Language：Japanese Presentation type：Oral presentation (general)
桃木光輝, 吉田拓真 Extreme value modeling for functional data

統計関連学会連合大会 2025.9

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Event date： 2025.9

Language：Japanese Presentation type：Oral presentation (general)
桃木光輝，吉田拓真 Extreme value theory of mixed effects models for small area estimation

科研費シンポジウム「データサイエンスにおける統計的理論の展開研究」 2025.1

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Event date： 2025.1

Language：Japanese Presentation type：Oral presentation (general)

Venue：静岡がんセンター，静岡
桃木光輝，吉田拓真 Mixed effects modeling of the generalized Pareto distribution for dependent extremes

2024年度統計関連学会連合大会 2024.9

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Event date： 2024.9

Language：Japanese Presentation type：Oral presentation (general)

Venue：東京理科大学，東京
桃木光輝，吉田拓真 Mixed effects modeling of the generalized Pareto distribution for dependent extremes

統計サマーセミナー2024 2024.7

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Event date： 2024.7 - 2024.8

Language：Japanese Presentation type：Oral presentation (general)

Venue：湯沢ニューオータニ，新潟
桃木光輝 Unit-level mixed effects models with areal dependence for extremes

さくらセミナー2024 2024.3

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Event date： 2024.3

Language：Japanese Presentation type：Oral presentation (general)

Venue：鹿児島大学，鹿児島
桃木光輝，吉田拓真 Asymptotic properties for small area estimation in extreme value theory

科研費シンポジウム「データサイエンスにおける統計的理論・方法論の新展開」 2023.11

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Event date： 2023.11

Language：Japanese Presentation type：Oral presentation (general)

Venue：九州大学，福岡
桃木光輝, 吉田拓真 Small area estimation for extremes events

日本計算機統計学会第37回シンポジウム 2023.11

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Event date： 2023.11

Language：Japanese Presentation type：Oral presentation (general)

Venue：フェニックス・シーガイア・リゾート，宮崎
桃木光輝, 吉田拓真 Extremal small area estimation

統計数理研究所共同研究集会「極値理論の工学への応用」 2023.10

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Event date： 2023.10

Language：Japanese Presentation type：Oral presentation (general)

Venue：統計数理研究所，東京
桃木光輝，吉田拓真 Small area estimation in extreme value theory

2023年度統計関連学会連合大会 2023.9

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Event date： 2023.9

Language：Japanese Presentation type：Oral presentation (general)

Venue：京都大学，京都
桃木光輝, 吉田拓真 Small area estimation in extreme value theory

統計サマーセミナー2023 2023.8

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Event date： 2023.8

Language：Japanese Presentation type：Poster presentation

Venue：あわら温泉清風荘，福井
桃木光輝災害リスク評価のための空間統計モデリング

さくらセミナー2023 2023.3

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Event date： 2023.3

Language：Japanese Presentation type：Oral presentation (general)

Venue：鹿児島大学，鹿児島
桃木光輝，吉田拓真 Mixed effects modeling of clustered extreme values

科研費シンポジウム「統計科学の開拓」 2022.12

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Event date： 2022.12

Language：Japanese Presentation type：Oral presentation (general)

Venue：金沢大学，石川
桃木光輝，吉田拓真 Mixed effects models for extreme value index regression

2022年度統計関連学会連合大会 2022.9

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Event date： 2022.9

Language：Japanese Presentation type：Oral presentation (general)

Venue：成蹊大学，東京
桃木光輝，吉田拓真 Mixed effects models for extreme value index regression

統計サマーセミナー2022 2022.8

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Event date： 2022.8

Language：Japanese Presentation type：Oral presentation (general)

Venue：フェニックス・シーガイア・リゾート，宮崎
桃木光輝，吉田拓真 Varying coefficient models for extreme value index regression

日本計算機統計学会第36回大会 2022.5

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Event date： 2022.5

Language：Japanese Presentation type：Oral presentation (general)

Venue：愛媛県県民文化会館，愛媛
桃木光輝変動係数モデルによる極値指数の回帰について

さくらセミナー2022 2022.3

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Event date： 2022.3

Language：Japanese Presentation type：Oral presentation (general)

Venue：鹿児島大学，鹿児島
桃木光輝，吉田拓真 Varying coefficient models for tail index regression

2021年度統計関連学会連合大会 2021.9

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Event date： 2021.9

Language：Japanese Presentation type：Oral presentation (general)

Venue：オンライン
桃木光輝, 吉田拓真 Varying coefficient models for tail index regression

統計サマーセミナー2021 2021.8

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Event date： 2021.8

Language：Japanese Presentation type：Oral presentation (general)

Venue：オンライン
桃木光輝，吉田拓真極値統計学による地震のマグニチュードの解析

日本計算機統計学会第35回大会 2021.6

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Event date： 2021.6

Language：Japanese Presentation type：Oral presentation (general)

Venue：別府国際コンベンションセンター，大分
桃木光輝日本の地震におけるマグニチュードに対する極値分析

さくらセミナー2021 2021.3

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Event date： 2021.3

Language：Japanese Presentation type：Oral presentation (general)

Venue：鹿児島大学，鹿児島

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Teaching Experience

サイエンスクラブ III

2026.4
基礎統計学

2026.4

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2026.9
Institution：鹿児島大学
数理情報科学特別演習B

2025.10
Institution：鹿児島大学
数理情報科学論文講読B

2025.10
Institution：鹿児島大学
微分積分学基礎

2025.10

-

2026.3
Institution：鹿児島大学
Information Use

2025.4
Institution：Kagoshima University

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Level：Undergraduate (liberal arts) Country：Japan
Reading Academic Articles in Mathematics and Informatics A

2025.4
Institution：Kagoshima University

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Level：Undergraduate (specialized) Country：Japan
Mathematics and Computer Science Seminar A

2025.4
Institution：Kagoshima University

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Level：Undergraduate (specialized) Country：Japan
Science Club Ⅱ

2025.4
Institution：Kagoshima University

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Level：Undergraduate (specialized) Country：Japan
Mathematics and Computer Science Seminar A

2025.4
Institution：Kagoshima University

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Level：Undergraduate (specialized) Country：Japan
Reading Academic Articles in Mathematics and Informatics A

2025.4
Institution：Kagoshima University

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Level：Undergraduate (specialized) Country：Japan
Science Club Ⅱ

2025.4

-

2026.3
Institution：Kagoshima University

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Level：Undergraduate (specialized) Country：Japan
Information Use

2025.4

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2025.9
Institution：Kagoshima University

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Level：Undergraduate (liberal arts) Country：Japan
Word Processer Practice

2024.4

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2024.9
Institution：Kagoshima Immaculate Heart College

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Country：Japan
Word Processer Practice

2024.4

-

2024.9
Institution：Kagoshima Immaculate Heart College

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Country：Japan
Basic Practice of Information Processing

2023.10

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2024.3
Institution：Kagoshima Immaculate Heart College

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Country：Japan
Basic Practice of Information Processing

2023.10

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2024.3
Institution：Kagoshima Immaculate Heart College

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Country：Japan

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Academic Activities

Executive Committee Member of the 39th Annual Meeting of Japanese Society of Computational Statistics

Role(s)： Planning, management, etc.

2025.4 - 2025.6

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Type：Competition, symposium, etc.