--- title: "Ryo Nagata — author profile and papers" description: "Ryo Nagata, Konan University: 3 papers on Elamur Research (2017–2020), h-index 22 — affiliations, topics, co-authors and who cites them in our library." canonical: "https://research.elamur.ai/free/en/authors/ryo-nagata/" --- [Elamur Research](https://md.research.elamur.ai/free/en/) · [this page in HTML](https://research.elamur.ai/free/en/authors/ryo-nagata/) [home](https://md.research.elamur.ai/free/en/) / [authors](https://md.research.elamur.ai/free/en/authors/) / Ryo Nagata # Ryo Nagata 3 papers on this site · 2017–2020 current affiliation [Konan University](https://md.research.elamur.ai/free/en/universities/konan-university/), Kobe, Japan; [Japan Aerospace Exploration Agency](https://ror.org/059yhyy33), Tokyo, Japan; [Institute of Space and Astronautical Science](https://ror.org/034gcgw60), Tokyo, Japan Ryo Nagata has 3 papers on this site, in 2017–2020, most of them on [Grammatical error correction & learner language](https://md.research.elamur.ai/free/en/topics/grammatical-error-correction/), [Part-of-speech tagging](https://md.research.elamur.ai/free/en/topics/part-of-speech-tagging/), [Evaluation & benchmarks](https://md.research.elamur.ai/free/en/topics/evaluation-benchmarks/); often with [Tomoya Mizumoto](https://md.research.elamur.ai/free/en/authors/tomoya-mizumoto/), [Kotaro Funakoshi](https://md.research.elamur.ai/free/en/authors/kotaro-funakoshi/), [Masato Mita](https://md.research.elamur.ai/free/en/authors/masato-mita/). 2 of them are among the papers [Mova](https://md.research.elamur.ai/free/en/projects/mova/) reads. [OpenAlex](https://openalex.org/A5068324214) · [ORCID](https://orcid.org/0000-0002-5893-3335) · [**h-index 22**](https://openalex.org/authors/A5068324214) · [125 works](https://openalex.org/works?filter=author.id:A5068324214) · [2 392 citations](https://openalex.org/works?filter=author.id:A5068324214&sort=cited_by_count:desc) OpenAlex, 2026-10-14 [3 works on this site](https://md.research.elamur.ai/free/en/authors/ryo-nagata/#papers) · [82 citations in our library](https://md.research.elamur.ai/free/en/authors/ryo-nagata/cited-by/) · 8 more works in our library The profile is the library's match of the name; two people with one name are not always told apart. Elsewhere: [Google Scholar](https://scholar.google.com/citations?view_op=search_authors&mauthors=Ryo+Nagata) · [Semantic Scholar](https://www.semanticscholar.org/search?q=Ryo+Nagata) · [dblp](https://dblp.org/search?q=Ryo+Nagata) · [ACL Anthology](https://aclanthology.org/search/?q=Ryo+Nagata) ## Affiliations - [Konan University](https://md.research.elamur.ai/free/en/universities/konan-university/) · Kobe, Japan —current · 2008–2026 on 39 papers - [Japan Aerospace Exploration Agency](https://ror.org/059yhyy33) · Tokyo, Japan —current · 2021–2026 on 19 papers - [Institute of Space and Astronautical Science](https://ror.org/034gcgw60) · Tokyo, Japan —current · 2021–2026 on 16 papers - [RIKEN](https://md.research.elamur.ai/free/en/labs/riken/) · Wako, Japan —2019–2024 on 8 papers - [Japan Science and Technology Agency](https://md.research.elamur.ai/free/en/government/japan-science-and-technology-agency/) · Tokyo, Japan —2018–2023 on 5 papers - [RIKEN Center for Advanced Intelligence Project](https://ror.org/03ckxwf91) · Tokyo, Japan —2019–2023 on 3 papers - [Tohoku University](https://md.research.elamur.ai/free/en/universities/tohoku-university/) · Sendai, Japan —2020–2022 on 3 papers - [High Energy Accelerator Research Organization](https://ror.org/01g5y5k24) · Tsukuba, Japan —2010–2019 on 12 papers - [Institute of Particle and Nuclear Studies](https://ror.org/00nwp9g54) · Tsukuba —2010–2018 on 2 papers - [Hyogo University of Teacher Education](https://ror.org/00wejpz79) · Katō, Japan —2005–2014 on 11 papers From the bylines of their papers (OpenAlex, 2026-10-14), ORCID and Wikidata; institutions on papers are matched by machine. 16 more institutions on single bylines are not listed. ## Topics [Grammatical error correction & learner language 3](https://md.research.elamur.ai/free/en/topics/grammatical-error-correction/) · [Part-of-speech tagging 2](https://md.research.elamur.ai/free/en/topics/part-of-speech-tagging/) · [Evaluation & benchmarks 1](https://md.research.elamur.ai/free/en/topics/evaluation-benchmarks/) ## Works by year ### 2020s [**2020** 1 paper](https://md.research.elamur.ai/free/en/papers/gotou-2020-taking-correction-difficulty-into-account/) ### 2010s [**2018** 1 paper](https://md.research.elamur.ai/free/en/papers/nagata-2018-pos-tagging-model-adapted-learner/) · [**2017** 1 paper](https://md.research.elamur.ai/free/en/papers/mizumoto-2017-analyzing-impact-spelling-errors-pos/) ## Papers The most cited first (OpenAlex and our library). 1. **[Taking the Correction Difficulty into Account in Grammatical Error Correction Evaluation](https://md.research.elamur.ai/free/en/papers/gotou-2020-taking-correction-difficulty-into-account/)** *(2020 · 23 citations)* Standard metrics for grammatical error correction (GEC), such as F0.5 and GLEU, count all corrections equally. 2. **[Analyzing the Impact of Spelling Errors on POS-Tagging and Chunking in Learner English](https://md.research.elamur.ai/free/en/papers/mizumoto-2017-analyzing-impact-spelling-errors-pos/)** *(2017 · 12 citations)* Spelling errors in learner English create unknown words, and unknown words are a main cause of POS-tagging and chunking failures. 3. **[A POS Tagging Model Designed for Learner English](https://md.research.elamur.ai/free/en/papers/nagata-2018-pos-tagging-model-adapted-learner/)** *(2018 · 11 citations)* Taggers trained on edited English fail on learner English, and the authors trace the failures to unknown words (often misspellings), to capitalisation errors, to missing determiners, and to a different tag distribution (the word "like" is a preposition in 82% of the native corpus but a verb in 94% of the Konan-JIEM… ## Also in our library 8 more works of theirs are in our library without a page here yet; they will appear as we publish them. ## Co-authors here 4 co-authors with a page, the most papers together first. - [Tomoya Mizumoto](https://md.research.elamur.ai/free/en/authors/tomoya-mizumoto/) ×2 - [Kotaro Funakoshi](https://md.research.elamur.ai/free/en/authors/kotaro-funakoshi/) - [Masato Mita](https://md.research.elamur.ai/free/en/authors/masato-mita/) - [Yuta Kikuchi](https://md.research.elamur.ai/free/en/authors/yuta-kikuchi/) ## Cited by Papers of our library cite their works 82 times (of the 140 884 papers whose bibliographies we read); [3 citing papers with a page here →](https://md.research.elamur.ai/free/en/authors/ryo-nagata/cited-by/).