Natural Language Processing
NLP for Educational Applications
Translation and Interpreting Studies
2022.4 - 2025.3 Doctor of Engineering, Nara Institute of Science and Technology
2020.4 - 2022.3 Master of Engineering, Nara Institute of Science and Technology
2010.4 - 2012.3 Master of Linguistics, Tokyo University of Foreign Studies
2006.4 - 2010.3 Bachelor of Arts, Tokyo University of Foreign Studies
2025.9 - Assistant Professor, Seikei University
2025.4 - 2025.8 Postdoctoral Researcher, Nara Institute of Scinence and Technology
2024.5 - Part-time Engineer, Tleez Inc.
2022.4 - 2025.3 NAIST Granite / University Fellowships for the Creation of Innovation in Science and Technology
2021.6 - 2024.3 Part-time Researcher, Nara Institute of Scinence and Technology
2021.10 - 2022.3 Research Assistant, Nara Institute of Scinence and Technology
2016.5 - 2020.3 Full-time Educational Material/Test Developer, Z-kai Inc.
2012.4 - 2016.4 Full-time Tutoring School Teacher, EIKOH Inc.
Kosuke Doi, Katsuhito Sudoh, Satoshi Nakamura, Taro Watanabe. Enhancing Automated Essay Scoring with Grammatical Features using Multi-task Learning and Item Response Theory. Journal of Natural Language Processing, 32(2), 2025.
Kosuke Doi, Katsuhito Sudoh, Satoshi Nakamura. NAIST Simultaneous Interpretation Corpus: Development and Analyses of Data from Interpreters of Different Levels. Journal of Natural Language Processing, 31(3), pp. 868-893, 2024.
Kosuke Doi, Yuka Ko, Mana Makinae, Katsuhito Sudoh, Satoshi Nakamura. Word Order in English-Japanese Simultaneous Interpretation: Analyses and Evaluation using Chunk-wise Monotonic Translation, In Proceedings of the 21st International Conference on Spoken Language Translation (IWSLT 2024), pp. 254-264, 2024.
Yuka Ko, Ryo Fukuda, Yuta Nishikawa, Yasumasa Kano, Tomoya Yanagita, Kosuke Doi, Mana Makinae, Haotian Tan, Makoto Sakai, Sakriani Sakti, Katsuhito Sudoh, Satoshi Nakamura. NAIST Simultaneous Speech Translation System for IWSLT 2024, In Proceedings of the 21st International Conference on Spoken Language Translation (IWSLT 2024), pp. 170-182, 2024.
Kosuke Doi, Katsuhito Sudoh, Satoshi Nakamura. Automated Essay Scoring Using Grammatical Variety and Errors with Multi-Task Learning and Item Response Theory, In Proceedings of the 19th Workshop on Innovative Use of NLP for Building Educational Applications (BEA 2024), pp. 316-329, 2024
Jinming Zhao, Yuka Ko, Kosuke Doi, Ryo Fukuda, Katsuhito Sudoh, Satoshi Nakamura. NAIST-SIC-Aligned: An Aligned English-Japanese Simultaneous Interpretation Corpus, In Proceedings of the 2024 Joint International Conference on Computational Linguistics, Language Resources and Evaluation (LREC-COLING 2024), pp. 12046-12052, 2024.
Ryo Fukuda, Yuta Nishikawa, Yasumasa Kano, Yuka Ko, Tomoya Yanagita, Kosuke Doi, Mana Makinae, Sakriani Sakti, Katsuhito Sudoh, Satoshi Nakamura. NAIST Simultaneous Speech-to-speech Translation System for IWSLT 2023, In Proceedings of the 20th International Conference on Spoken Language Translation (IWSLT 2023), pp. 330-340, 2023.
Ryo Fukuda, Yuka Ko, Yasumasa Kano, Kosuke Doi, Hirotaka Tokuyama, Sakriani Sakti, Katsuhito Sudoh, Satoshi Nakamura. NAIST Simultaneous Speech-to-Text Translation System for IWSLT 2022, In Proceedings of the 19th International Conference on Spoken Language Translation (IWSLT 2022), pp. 286-292, 2022.
Ryo Fukuda, Sashi Novitasari, Yui Oka, Yasumasa Kano, Yuki Yano, Yuka Ko, Hirotaka Tokuyama, Kosuke Doi, Tomoya Yanagita, Sakriani Sakti, Katsuhito Sudoh, Satoshi Nakamura. Simultaneous Speech-to-Speech Translation System with Transformer-Based Incremental ASR, MT, and TTS, In Proceedings of 2021 24th Conference of the Oriental COCOSDA International Committee for the Co-ordination and Standardisation of Speech Databases and Assessment Techniques (O-COCOSDA), pp. 186-192, 2021. Best Student Paper
Kosuke Doi, Katsuhito Sudoh, Satoshi Nakamura. Large-Scale English-Japanese Simultaneous Interpretation Corpus: Construction and Analyses with Sentence-Aligned Data, In Proceedings of the 18th International Conference on Spoken Language Translation (IWSLT 2021), pp. 226-235, 2021.
Ryo Fukuda, Yui Oka, Yasumasa Kano, Yuki Yano, Yuka Ko, Hirotaka Tokuyama, Kosuke Doi, Sakriani Sakti, Katsuhito Sudoh, Satoshi Nakamura. NAIST English-to-Japanese Simultaneous Translation System for IWSLT 2021 Simultaneous Text-to-text Task, In Proceedings of the 18th International Conference on Spoken Language Translation (IWSLT 2021), pp. 39-45, 2021.
Kosuke Doi. What Linguistic Features Determine the CEFR Reading Levels?, The First Asia Pacific Corpus Linguistics Conference, 2012.
Kosuke Doi. A Comparative Study on the Orders of Word Definitions in English-Japanese Dictionaries, In ASIALEX2011 Proceedings: LEXICOGRAPHY: Theoretical and Practical Perspectives, pp. 86-91, 2011.
Kosuke Doi. Compilation of the English Song Corpus and its Application in ELT Task/Material Development, The 1st symposium on Foreign Language Teacher Education and Development: Corpus Linguistics Educational Informational Technology & FLTED, 2010.
土肥康輔, 胡尤佳, 蒔苗茉那, 須藤克仁, 中村哲, 渡辺太郎. 順送り訳データに基づく英日同時機械翻訳の評価, 言語処理学会第31回年次大会発表論文集, pp. 228-233, 2025.
Kosuke Doi, Katsuhito Sudoh, Satoshi Nakamura. NAIST Simultaneous Interpretation Corpus: Development and Analyses of Data from Interpreters of Different Levels, 言語処理学会第31回年次大会発表論文集, p. 3032, 2025. <Poster presentation of the journal paper with the same title>
五藤巧, 土肥康輔, Adam Nohejl, Justin Vasselli, 郷原聖士, 坂井優介, 渡辺太郎. Nice gliTtchers: 文法誤り訂正部門, 言語処理学会第31回年次大会ワークショップ LLM時代のことばの評価の現在と未来, 2025. 予稿あり
土肥康輔, 須藤克仁, 中村哲. 文法項目の多様性と誤り情報を利用したエッセイ自動採点, 言語処理学会第30回年次大会発表論文集, pp. 1160-1164, 2024.
福田 りょう, 土肥康輔, 須藤克仁, 中村哲. 原発話に忠実な英日同時機械翻訳の実現に向けた順送り訳評価データ作成, 研究報告自然言語処理 (NL), 2024-NL-259(14), pp. 1-6, 2024. 優秀研究賞
土肥康輔, 須藤克仁, 中村哲. エッセイ自動採点における文法特徴と学習者レベルの関係, 言語処理学会第29回年次大会発表論文集, pp. 211-216, 2023.
土肥康輔, 須藤克仁, 中村哲. NAIST同時通訳コーパスの構築：翻訳字幕との比較と通訳経験年数に基づく分析, 日本通訳翻訳学会第23回年次大会予稿集, p. 29, 2022.
土肥康輔, 須藤克仁, 中村哲. Masked Language Model による系列確率に基づく文法誤り検出, 言語処理学会第28回年次大会発表論文集, pp. 1781-1786, 2022.
土肥康輔, 須藤克仁, 中村哲. 文法誤り訂正モデルのエラー分析に基づく疑似データ生成の効果検証, 言語処理学会第27回年次大会発表論文集, pp. 1301-1306, 2021.
土肥康輔. CEFR-J を用いた4 技能試験「Z 会リファール英語CAN-DO テスト」の中学・高校での活用, CEFR-J2019シンポジウム, 2019.
小林裕紀子, 土肥康輔. ライティングタスクにおける中高大学生のパフォーマンスの変化に関する考察, 第44 回全国英語教育学会京都研究大会, 2018.
投野由紀夫, 金田拓, 土肥康輔. CEFR Level Marker の開発と英語力到達度を考慮した新しい辞典のイメージ, JACET英語辞書研究会, 2012
投野由紀夫, 金田拓, 土肥康輔. CEFR Level Marker の開発：英語到達度指標研究のコーパス言語学的展開, 英語コーパス学会第37 回大会, 2011.
土肥康輔. コーパスに基づく高校入試向け単語集の分析, 関東甲信越英語教育学会第35 回神奈川研究大会, 2011.
2025.6 JASSO Scholarship, Exemption from Return for Particularly Outstanding Achievement (Full Exemption)
2024.3 優秀研究賞 第259回 自然言語処理研究発表会: 原発話に忠実な英日同時機械翻訳の実現に向けた順送り訳評価データ作成 [共著] (Best Research Award at the 259th meeting of Special Interest Group of Natural Language Processing (IPSJ-SIGNL) ; co-authored)
2022.4 NAIST Top Scholarship Program 2022
2022.3 NAIST Best Student Award (Master Course)
2021.11 Best Student Paper in O-COCOSDA 2021: Simultaneous Speech-to-Speech Translation System with Transformer-Based Incremental ASR, MT, and TTS [co-authored]
Specialized Teaching Certificate for High School (English)
Specialized Teaching Certificate for Junior High School (English)
E-mail: doi.kosuke.de8{0x40}is.naist.jp