| 2026 | EACL | Cross-lingual and Word-Independent Methods for Quantifying Degree of Grammaticalization. | Ryo Nagata, Daichi Mochihashi, Misato Ido, Yusuke Kubota, Naoki Otani, Yoshifumi Kawasaki, Hiroya Takamura |
| 2025 | ACL | Quantifying Lexical Semantic Shift via Unbalanced Optimal Transport. | Ryo Kishino, Hiroaki Yamagiwa, Ryo Nagata, Sho Yokoi, Hidetoshi Shimodaira |
| 2025 | ACL | A New Formulation of Zipf's Meaning-Frequency Law through Contextual Diversity. | Ryo Nagata, Kumiko Tanaka-Ishii |
| 2024 | COLING | A Computational Approach to Quantifying Grammaticization of English Deverbal Prepositions. | Ryo Nagata, Yoshifumi Kawasaki, Naoki Otani, Hiroya Takamura |
| 2024 | INLG | n-gram F-score for Evaluating Grammatical Error Correction. | Shota Koyama, Ryo Nagata, Hiroya Takamura, Naoaki Okazaki |
| 2023 | EMNLP | Variance Matters: Detecting Semantic Differences without Corpus/Word Alignment. | Ryo Nagata, Hiroya Takamura, Naoki Otani, Yoshifumi Kawasaki |
| 2023 | INLG | A Report on FCG GenChal 2022: Shared Task on Feedback Comment Generation for Language Learners. | Ryo Nagata, Masato Hagiwara, Kazuaki Hanawa, Masato Mita |
| 2022 | ACL | Exploring the Capacity of a Large-scale Masked Language Model to Recognize Grammatical Errors. | Ryo Nagata, Manabu Kimura, Kazuaki Hanawa |
| 2022 | COLING | Revisiting Statistical Laws of Semantic Shift in Romance Cognates. | Yoshifumi Kawasaki, Malys Salingre, Marzena Karpinska, Hiroya Takamura, Ryo Nagata |
| 2021 | EMNLP | Exploring Methods for Generating Feedback Comments for Writing Learning. | Kazuaki Hanawa, Ryo Nagata, Kentaro Inui |
| 2021 | INLG | Shared Task on Feedback Comment Generation for Language Learners. | Ryo Nagata, Masato Hagiwara, Kazuaki Hanawa, Masato Mita, Artem Chernodub, Olena Nahorna |
| 2020 | COLING | Taking the Correction Difficulty into Account in Grammatical Error Correction Evaluation. | Takumi Gotou, Ryo Nagata, Masato Mita, Kazuaki Hanawa |
| 2020 | LREC | Creating Corpora for Research in Feedback Comment Generation. | Ryo Nagata, Kentaro Inui, Shin'ichiro Ishikawa |
| 2019 | CICLING | *Paris is Rain. or It is raining in Paris?: Detecting Overgeneralization of Be-verb in Learner English. | Ryo Nagata, Koki Washio, Hokuto Ototake |
| 2019 | EMNLP | Toward a Task of Feedback Comment Generation for Writing Learning. | Ryo Nagata |
| 2019 | NAACL | Cross-Corpora Evaluation and Analysis of Grammatical Error Correction Models - Is Single-Corpus Evaluation Enough? | Masato Mita, Tomoya Mizumoto, Masahiro Kaneko, Ryo Nagata, Kentaro Inui |
| 2018 | COLING | Exploring the Influence of Spelling Errors on Lexical Variation Measures. | Ryo Nagata, Taisei Sato, Hiroya Takamura |
| 2017 | EACL | Analyzing Semantic Change in Japanese Loanwords. | Hiroya Takamura, Ryo Nagata, Yoshifumi Kawasaki |
| 2017 | KES | Adaptive Spelling Error Correction Models for Learner English. | Ryo Nagata, Hiroya Takamura, Graham Neubig |
| 2016 | ACL | Phrase Structure Annotation and Parsing for Learner English. | Ryo Nagata, Keisuke Sakaguchi |
| 2016 | LREC | Discriminative Analysis of Linguistic Features for Typological Study. | Hiroya Takamura, Ryo Nagata, Yoshifumi Kawasaki |
| 2014 | ACL | Correcting Preposition Errors in Learner English Using Error Case Frames and Feedback Messages. | Ryo Nagata, Mikko Vilenius, Edward W. D. Whittaker |
| 2014 | COLING | Language Family Relationship Preserved in Non-native English. | Ryo Nagata |
| 2013 | ACL | Reconstructing an Indo-European Family Tree from Non-native English Texts. | Ryo Nagata, Edward W. D. Whittaker |
| 2012 | KES | A method for detecting tense errors in learner English. | Ryo Nagata, Vera Sheinman |
| 2011 | ACL | Creating a manually error-tagged and shallow-parsed learner corpus. | Ryo Nagata, Edward W. D. Whittaker, Vera Sheinman |
| 2011 | HRI | The chanty bear: a new application for hri research. | Kotaro Funakoshi, Tomoya Mizumoto, Ryo Nagata, Mikio Nakano |
| 2011 | KES | Exploiting Learners' Tendencies for Detecting English Determiner Errors. | Ryo Nagata, Atsuo Kawai |
| 2010 | COLING | Evaluating performance of grammatical error detection to maximize learning effect. | Ryo Nagata, Kazuhide Nakatani |
| 2009 | EDM | Edu-mining for Book Recommendation for Pupils. | Ryo Nagata, Keigo Takeda, Koji Suda, Jun'ichi Kakegawa, Koichiro Morihiro |
| 2009 | ICALT | A Topic-Independent Method for Automatically Scoring Essay Content Rivaling Topic-Dependent Methods. | Ryo Nagata, Jun'ichi Kakegawa, Yukiko Yabuta |
| 2007 | ICALT | Edu-mining for finding keywords to improve message-production skills. | Ryo Nagata, Koji Suda, Jun'ichi Kakegawa, Koichiro Morihiro, Kazuhiko Showji |
| 2006 | ACL | A Feedback-Augmented Method for Detecting Errors in the Writing of Learners of English. | Ryo Nagata, Atsuo Kawai, Koichiro Morihiro, Naoki Isu |
| 2006 | ACL | Reinforcing English Countability Prediction with One Countability per Discourse Property. | Ryo Nagata, Atsuo Kawai, Koichiro Morihiro, Naoki Isu |
| 2005 | IJCNLP | Detecting Article Errors Based on the Mass Count Distinction. | Ryo Nagata, Takahiro Wakana, Fumito Masui, Atsuo Kawai, Naoki Isu |