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Quantification of writing style feature of reports using machine learning

Research Project

Project/Area Number 20K03135
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 09070:Educational technology-related
Research InstitutionOsaka Sangyo University

Principal Investigator

Ohno Asako  大阪産業大学, 工学部, 准教授 (90550369)

Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2022: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2021: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords記述特徴 / 授業課題レポートにおける盗用発見 / 機械学習 / 作成者認証 / 決定木 / ランダムフォレスト / 隠れマルコフモデル / 知的学習支援システム / 記述スタイル特徴 / 盗用発見 / 授業課題レポート / 書き方のクセ / 知的学習システム / 教育工学
Outline of Research at the Start

本研究ではレポート作成者の「書き方のクセ」を記述スタイル特徴として記述スタイルモデルにより定量的に表現し、「作成者のこれまでの書き方と今回の書き方との違い」に基づく作成者認証を行うことで盗用を発見する手法を提案し、改良を行ってきた。
本研究期間中には、既存のモデルに加え、作成者のこれまでの記述スタイル特徴との具体的な相違点や盗用か否かの客観的な判断基準を提示する二つのモデルを提案し、教員に分かりやすく示すことで、「納得のいく」盗用発見を実現することを目指す。盗用発見精度の向上や精神的負担の軽減に関する検証についても引き続き行う。

Outline of Final Research Achievements

In this study, we improved a method to support plagiarism detection by having a hidden Markov model learn the "description features" (writing style "habits") of the author of a class assignment report and perform author authentication with the following main results. (1) We developed a system that identifies report documents created by the same person with approximately 90% accuracy by using "Word formatting information" obtained from XML (Extensible Markup Language) analysis of Word documents (.docx files) as author features. (2) We constructed a decision tree model to visualize information on "differences in writing style", which is the basis for author authentication, and classification rules for report authors based on "description features" and "Word formatting information".

Academic Significance and Societal Importance of the Research Achievements

授業課題レポートは同一テーマについて同じ学習進度の学生が一斉に作成することから、内容が類似しやすい。本研究では、このような性質をもつ授業課題レポートの盗用発見という目的に特化し、人の行う「レポート文書の作成者の推定」に倣った独自の視点による手法を提案している。本研究の成果として提案した手法を併用することで、従来の内容の類似に基づく盗用発見において危惧される偶然の一致による誤判定のリスクを低減しながら高精度の盗用発見を行うことが期待できる。また、本手法を用いてレポート作成者認証の根拠を視覚的に示すことは教員・学生の双方に「納得のいく」盗用発見の実現につながり、社会における一つの貢献となり得る。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (14 results)

All 2024 2023 2022 2021 2020

All Journal Article (6 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 6 results,  Open Access: 2 results) Presentation (8 results) (of which Int'l Joint Research: 5 results)

  • [Journal Article] Dimensionality Reduction and Visualization of Word Formatting Information as Author’s Writing Feature in Class Assignment Reports2024

    • Author(s)
      Asako Ohno, Yoshihiro Ohata
    • Journal Title

      ICIC Express Letters, Part B: Applications

      Volume: 15 Issue: 03 Pages: 245

    • DOI

      10.24507/icicelb.15.03.245

    • ISSN
      2185-2766
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Could Authors of Academic Reports be Discerned Using Formatting Information Obtained by Parsing XML of .<i>docx</i> Documents?2023

    • Author(s)
      Ohno Asako
    • Journal Title

      IEEJ Transactions on Electronics, Information and Systems

      Volume: 143 Issue: 1 Pages: 91-100

    • DOI

      10.1541/ieejeiss.143.91

    • ISSN
      0385-4221, 1348-8155
    • Year and Date
      2023-01-01
    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Acquisition of Synonyms for Colloquial Expressions in Scientific Reports Using Word2Vec2023

    • Author(s)
      Asako Ohno
    • Journal Title

      ICIC Express Letters, Part B: Applications

      Volume: 14 Issue: 06 Pages: 657

    • DOI

      10.24507/icicelb.14.06.657

    • ISSN
      2185-2766
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Quantification of the Depth of Student Learning in Group Discussions to Support Active Learning Using Revised Taxonomy2022

    • Author(s)
      Asako Ohno
    • Journal Title

      IEEJ Transactions on Electronics, Information and Systems

      Volume: 142 Issue: 3 Pages: 382-388

    • DOI

      10.1541/ieejeiss.142.382

    • NAID

      130008165798

    • ISSN
      0385-4221, 1348-8155
    • Year and Date
      2022-03-01
    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Application of Web-based Visual Compiler to Computer Education2022

    • Author(s)
      Hiroaki Hiranishi, Yoshiro Imai, Primoz Podrzaj, Asako Ohno, and Tetsuo Hattori
    • Journal Title

      IEEJ Transactions on Electronics, Information and Systems

      Volume: 142 Issue: 3 Pages: 389-394

    • DOI

      10.1541/ieejeiss.142.389

    • NAID

      130008165802

    • ISSN
      0385-4221, 1348-8155
    • Year and Date
      2022-03-01
    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A Study on the Evaluation Support Method for Human Resources by Focusing on the Content of Conversation in Group Discussions in Recruitment Interviews2021

    • Author(s)
      Asako Ohno
    • Journal Title

      ICIC Express Letters, Part B: Applications

      Volume: 12 Issue: 12 Pages: 1129

    • DOI

      10.24507/icicelb.12.12.1129

    • NAID

      40022758356

    • ISSN
      2185-2766
    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Presentation] Dimensionality Reduction and Visualization of Word Formatting Information as Author’s Writing Feature in Class Assignment Reports2023

    • Author(s)
      Asako Ohno, Yoshihiro Ohata
    • Organizer
      17th International Conference on Innovative Computing, Information and Control
    • Related Report
      2023 Annual Research Report
  • [Presentation] Clustering and Visualization of Authors’ Feature Using Word Formatting Information to Support Plagiarism Detection in Class Assignment Reports2023

    • Author(s)
      Asako Ohno
    • Organizer
      The 15th annual International Conference on Education and New Learning Technologies
    • Related Report
      2023 Annual Research Report
  • [Presentation] 等価変換思考と動視化技術を活用する創造性志向の STEM 教育2022

    • Author(s)
      服部 哲郎, 大野 麻子, 今井 慈郎, 川上 裕介, 下原 勝憲, 田中 武
    • Organizer
      2022年電気学会電子・情報・システム部門大会
    • Related Report
      2022 Research-status Report
  • [Presentation] Acquisition of Synonyms for Colloquial Expressions in Science Reports Using Word2vec2022

    • Author(s)
      Asako Ohno
    • Organizer
      The 16th International Conference on Innovative Computing, Information and Control (ICICIC2022)
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Prototype of a Spoken Language Checker for Writing Science Reports2022

    • Author(s)
      Asako Ohno, Nao Isoda, Reika Maruyama, and Yuka Nakagawa
    • Organizer
      The 7th International Conference on Electronics and Software Science
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] An Attempt to Quantify Author’s Writing Features in Academic Reports Using Microsoft Word Formatting Information2022

    • Author(s)
      Asako Ohno
    • Organizer
      The 7th International Conference on Electronics and Software Science
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] An Experience of Active Online Programming Class During COVID-19 for Engineering Undergraduates2021

    • Author(s)
      Asako Ohno
    • Organizer
      Proceedings of the 15th International Technology, Education and Development Conference
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] A Study on Quantitative Representation of Student Learning Depth in Group Discussions Using the Revised Taxonomy2020

    • Author(s)
      Asako Ohno
    • Organizer
      Proceedings of the 6th International Conference on Electronics and Software Science
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research

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Published: 2020-04-28   Modified: 2025-01-30  

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