日本語
The University of Electro-Communications 
Graduate School of Informatics and Engineering, School of Informatics and Engineering 
"Department of Computer and Network Engineering, Cluster I (Informatics and Computer Engineering)" 

Assistant Professor 
Masaki UTO 

Personal website  

Career
The University of Electro-Communications  The Graduate School of Informatics and Engineering  Assistant professor  2016/04/01-Present 
The University of Electro-Communications  The Graduate School of Information Systems  Assistant professor  2015/10/01-2016/03/31 
Nagaoka University of Technology  工学研究科  Project Assistant Professor  2014/02/01-2015/09/30 
GOGA, Inc.  Systems Engineer  2012/12/01-2014/01/24 

Academic background
The University of Electro-Communications  Graduate School of Information Systems  Department of Social Intelligence and Informatics (Doctor's Course)  Doctoral program  2013/09/30  Completed 
The University of Electro-Communications  Graduate School of Information Systems  Department of Social Intelligence and Informatics (Master's course)  Master's program  2011/03/24  Completed 
The University of Electro-Communications  電気通信学部  The Department of Human Communication  2009/03/24  Graduated 
栃木県立栃木高等学校卒業  2005/03/31  Graduated 

Academic degrees
博士(工学)  The University of Electro-Communications  2013/09/30 
修士(工学)  The University of Electro-Communications  2011/03/24 

Licenses and qualifications
博士前期課程研究指導担当資格(Mマル合)  2019/04/01 

Classes responsible within the university
2019  情報領域演習第二  Spring semester  Undergraduate, daytime 
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Current research areas
Statistical science 
Mathematical informatics 
Educational technology 

Research keywords
Bayesian Statistics 
Machine Learning 
Data Science 
Artificial Intelligence 
Natural Language Processing 
Test Theory 
Educational Technology 

Current research subjects
大規模レイティングの解析手法とその応用  2014-Present 
統計的自然言語処理技術に基づく自動採点技術の開発  2017-Present 
統計的自然言語処理に基づく論理構造判定手法の開発  2014-Present 
ベイジアンネットワーク構造の厳密解探索アルゴリズム  2012-Present 
マルコフ情報源の多重度推定法  2010-Present 

Published papers
Paper  Yes  A generalized many-facet Rasch model and its Bayesian estimation using Hamiltonian Monte Carlo  Joint  Masaki Uto, Maomi Ueno  Behaviormetrika, Springer  47/ 2, 469-496  2020/07/24  10.1007/s41237-020-00115-7 
Paper  Yes  Time- and learner-dependent hidden Markov model for writing process analysis using keystroke log data.  Joint  Masaki Uto, Yoshimitsu Miyazawa, Yoshihiro Kato, Koji Nakajima, Hajime Kuwata  International Journal of Artificial Intelligence in Education, Springer  30/ 2, 271-298  2020/06/28  10.1007/s40593-019-00189-9 
Paper  Yes  Item response theory for rubric-based assessment  Joint  Masaki Uto, Maomi Ueno  The IEICE transactions on information and systems  J103-D/ 05, 459-479  2020/05/01  10.14923/transinfj.2019JDP7065 
Paper  Yes  Group optimization to maximize peer assessment accuracy using item response theory and integer programming  Joint  Masaki Uto, Duc-Thien Nguyen, Maomi Ueno  IEEE Transactions on Learning Technologies, IEEE Computer Society  13/ 1, 91-106  2020/03/21  1939-1382  10.1109/TLT.2019.2896966 
Paper  Yes  Multidimensional item response theory model for performance assessment  Joint  Shudai Yagi, Masaki Uto  The IEICE transactions on information and systems  J102-D/ 10, 708-720  2019/10/01  10.14923/transinfj.2019JDP7018 
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Research presentations
Oral presentation for an academic conference  項目反応理論と深層学習を用いた評価者バイアスに頑健な小論文自動採点手法  48th annual meeting of the Behaviormetric Society  No  Masashi Okano, Masaki Uto  2020/09/03 
Oral presentation for an academic conference  ルーブリック評価のための多相項目反応モデル  48th annual meeting of the Behaviormetric Society  No  Masaki Uto, Maomi Ueno  2020/09/03 
Oral presentation for an academic conference  Rater-effect IRT model integrating supervised LDA for accurate measurement of essay writing ability  第19回情報科学技術フォーラム FIT2020, 情報処理学会(トップコンファレンスセッション)  No  宇都雅輝  2020/09/02 
Oral presentation for an academic conference  Longitudinal trend and current challenges in pre-clinical clerkship OSCE 3: Analysis of free comments in post-survey  The 52st Annual Meeting of the Japan Society for Medical Education  No  Motofumi Yoshida, Keiko Uchida, Takeshi Morimoto, Yoshio Nitta, Keiko Nogami, Masaki Uto, Junji Otaki, Nobuhiko Saito  2020/07/17 
Oral presentation for an academic conference  An Application of Item Response Theory to Objective Structured Clinical Examination  The 52 st Annual Meeting of the Japan Society for Medical Education  No  Masaki Uto, Takeshi Morimoto, Yasuko Nogami, Keiko Uchida, Motofumi Yoshida, Mizuki Katagiri, Kazuki Kasai, Satoshi Kawakami, Nobuhiko Saito, Yoshio Nitta  2020/07/17 
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Awards
Best paper runner-up award, International Conference on Artificial Intelligence in Education (AIED)  Robust neural automated essay scoring using item response theory  2020/07/10 
人工知能学会 先進的学習科学と工学研究会 若手奨励賞  評価者バイアスに頑健な小論文自動採点手法  2020/04/02 
The Behaviormetric Society "Hidano Tadashi and Mizuno Kinji Award (Encouragement Award)"  2019/09/05 
言語処理学会 若手の会 第14回シンポジウム 萌芽研究賞  受験者の解答履歴を利用した短答式問題自動採点手法  2019/08/28 
The 33rd Annual Conference of the Japanese Society for Artificial Intelligence  Hidden Markov IRT model as a generalization of Bayesian Knowledge Tracing  2019/08/01 
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Grants-in-aid for scientific research
Robust automated essay scoring method integrating deep neural networks and item response theory  Challenging exploratory research  2020/07/30-2023/03/31 
プログラムコード読解作成能力育成のための認知行動に基づく形成的評価手法の確立  "Scientific research (B), general"  2020/04/01-2023/03/31 
信頼性向上を持続するeテスティング・プラットフォームの開発  Scientific research (S)  2019/04/01-2024/03/31 
Development of non-cognitive ability test based on item response theory  "Scientific research (C), general"  2019/04/01-2023/03/31 
小論文自動採点実用化のためのルーブリックを考慮した項目反応理論の開発  Challenging exploratory research  2019/04/01-2022/03/31 
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Memberships of academic societies
Association for the Advancement of Artificial Intelligence (AAAI)  2020/01/14-Present 
Japanese Society for Medical Education  2019/03/25-Present 
International Artificial Intelligence in Education Society  2018/04/27-Present 
The Japanese Society for Artificial Intelligence  2018/04/01-Present 
言語処理学会  2017/07/19-Present 
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Committee or council involvement
日本テスト学会第18回大会  実行委員  2019/10-Present 
日本テスト学会  表彰制度選考委員  2019/04/01-2021/03/31 
人工知能学会・先端的学習科学と工学研究会(ALST)  専門委員  2018/04/01-Present 
人事院 試験研究委員  試験研究委員  2017/11/01-Present 
独立行政法人大学入試センター 仕様策定委員会  評価委員  2017/09/25-Present 
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Committee activity in the University
社会連携センター 運営委員  2020/04-Present 
計算機運営委員会(IS)  2019/04-Present 
学生支援センター運営委員(I専攻)  2018/04-Present 
学生支援センター運営委員(1類)  2018/04-Present 
教務委員(IS-SS)  2017/04-2019/03 
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