Iwatsuki, Kenichi

Contact information

Name (in English)
Iwatsuki, Kenichi (Iwatsuki is my family name.)
氏名 (日本語)
பெயர் (தமிழ்)
இவாட்டுக்கி கென்னிச்சி
Research field
Formulaic Expression, Computational Linguistics, Document Analysis
A member of
Association for Natural Language Processing (since 2014); Association for Computing Machinery (since 2017)
PhD in Computer Science, Bachelor of Liberal Arts (UTokyo)


  1. April 2021–: Researcher at Nippon Steel Corporation
  2. April 2018–March 2021: Research Fellow of Japan Society for the Promotion of Science (DC2)


  1. March 2021: PhD conferred by the Department of Computer Science, Graduate School of Information Science and Technology, The University of Tokyo
  2. March 2018: Graduated from Master's course at the Department of Computer Science, Graduate School of Information Science and Technology, The University of Tokyo
  3. March 2016: Graduated from Department of Interdisciplinary Sciences, School of Arts and Sciences, The University of Tokyo
    (Also completed Interdisciplinary Language Sciences Course, Sub-major Program of the Department of Humanities and Social Sciences)
  4. March 2014: Completed Science Course I, The University of Tokyo
  5. March 2012: Completed a course at Kawaijuku Educational Institution
  6. March 2011: Finished Okazaki High School


  1. formulaic expressions, formulaic sequences, lexical bundles, phraseology, phrase frames
  2. communicative function, communicative role, rhetorical function, rhetorical role, move, step, meta-discourse
  3. documents including scholarly papers, scientific papers, research articles, scientific documents


The style of the bibliography conforms to SIST 02, which is based on ISO-690:2010.

International Conference Proceedings (peer-reviewed)

  1. Iwatsuki, Kenichi; Aizawa, Akiko. "Communicative-Function-Based Sentence Classification for Construction of an Academic Formulaic Expression Database". Proceedings of the 16th Conference of the European Chapter of the Association for Computational Linguistics. Online, 2021-4-19/23, Association for Computational Linguistics. Association for Computational Linguistics, 2021, p. 3476–3497. [URI] [data]
  2. Iwatsuki, Kenichi; Aizawa, Akiko. "Extraction of Formulaic Expressions from Scientific Papers". Proceedings of the Workshop on Scientific Document Understanding co-located with 35th AAAI Conference on Artificial Inteligence (AAAI 2021). Online, 2021-2-9, Association for the Advancement of Artificial Intelligence. CEUR-WS.org, 2021. [URI]
  3. Iwatsuki, Kenichi; Boudin, Florian; Aizawa, Akiko. "An Evaluation Dataset for Identifying Communicative Functions of Sentences in English Scholarly Papers". Proceedings of the 12th International Conference on Language Resources and Evaluation. Marseille, French Republic, 2020-5-11/16, European Language Resource Association. European Language Resource Association, 2020, p. 1712–1720. [URI]
  4. Iwatsuki, Kenichi; Aizawa, Akiko. "Using Formulaic Expressions in Writing Assistance Systems". Proceedings of the 27th International Conference on Computational Linguistics. Santa Fe, United States of America, 2018-8-20/26, International Committee on Computational Linguistics. Association for Computational Linguistics, 2018, p. 2678–2689. [URI]
  5. Iwatsuki, Kenichi; Sagara, Takeshi; Hara, Tadayoshi; Aizawa, Akiko. "Detecting In-line Mathematical Expressions in Scientific Documents". Proceedings of the 2017 ACM Symposium on Document Engineering. Valletta, Malta, 2017-9-4/7,Association for Computing Machinery. Association for Computing Machinery, 2017, p. 141–144. [doi]

Other Papers (peer-reviewed)

  1. Iwatsuki, Kenichi. "Towards Extracting Formulaic Expressions from Japanese Scholarly Papers". Multilingual Facilitation. Hämäläinen, Mika; Partanen, Niko; Alnajjar, Khalid eds. University of Helsinki Library, 2021, 74–82, 979-871-33-6227-0. [doi]

Domestic Conference Proceedings

  1. 岩月憲一, 相澤彰子. "英語論文の執筆を支援する定型表現集のカテゴリ構造の分析". 言語処理学会第23回年次大会発表論文集. つくば市, 2017-03-16, 言語処理学会. 言語処理学会, 2017, p. 951–954. [URI]
  2. 岩月憲一, 加藤恒昭, 山口和紀. "レイアウト認識に基づく論文構成要素の抽出". 第12回インタラクティブ情報アクセスと可視化マイニング研究会発表予稿集. 東京, 2016-3-18, 人工知能学会. 人工知能学会, 2016, p. 61–68. [URI]
  3. 加藤恒昭, 岩月憲一, 山口和紀. "文書構造に基づく対話的情報アクセスにむけて". 第10回インタラクティブ情報アクセスと可視化マイニング研究会発表予稿集. 東京, 2015-7-11, 人工知能学会. 人工知能学会, 2015, p. 1–8. [URI]

Others (peer-reviewed)

  1. Aizawa, Akiko, Sagara, Takeshi, Iwatsuki, Kenichi, Topic, Goran. "Construction of a New ACL Anthology Corpus for Deeper Analysis of Scientific Papers". Third International Workshop on Scientific Document Analysis. Yokohama, Japan, 2018-11-12/13.
  2. Aizawa, Akiko, Sagara, Takeshi, Topic, Goran, Iwatsuki, Kenichi. "Bridging the Gap between Layout, Logical, and Semantic Structures of Documents". International Interdisciplinary Symposium on Reading Experience & Analysis of Documents. Kaiserslautern, Germany, 2018-10-4/5.


  1. Iwatsuki, Kenichi; Boudin, Florian; Aizawa, Akiko. Extraction and Evaluation of Formulaic Expressions Used in Scholarly Papers. arXiv, 2020, 2006.10334. [doi] [URI]

Doctoral Thesis

The Japanese law and ministerial ordinance require PhD theses to be published on the Internet within a year of the conferment of the degree, but the Univirsity of Tokyo postpones publication for two years; thus, I hereby publish my PhD thesis on my website.
  1. Iwatsuki, Kenichi. Extraction, Classification, and Retrieval of Formulaic Expressions in Scientific Papers. Tokyo, The University of Tokyo, 2021, 147p. Doctoral thesis. [pdf]


  1. AtlanSTIC 2020 Visiting Researchers Programme: EUR 10,000 (Jul-Dec 2020) (Cancelled due to COVID-19)
  2. KAKENHI (Grant-in-Aid for JSPS Research Fellow): JPY 2,100,000 (2019-2020)
  3. The Association for Natural Language Processing, COLING 2018 Student Travel Support: JPY 350,000 (June 2018)


  1. Repayment exemption for student loan for outstanding achievement; Japan Student Services Organization (JPY 1,464,000) (May 2019)
  2. The 2nd Open Data Challenge for Public Transportation in Tokyo; Tokyo Metro Special Award (Hosted by Association for Open Data of Public Transportation) (March 2019)


Languages used on a daily basis

Japanese, English, Perl5 and Python3