Masahiro Kaneko

I am a postdoctoral researcher at MBZUAI under Prof. Timothy Baldwin🇦🇪. I am a project researcher at NII/LLMC🇯🇵, a principal researcher at Simulacra Inc.🇯🇵. I also collaborate with Professor Danushka Bollegala at the University of Liverpool🇬🇧.

My research focuses on the reliability, security, multiculturalism, and safety of AI.

News

2026.07: A paper was accepted at COLM 2026 @ San Francisco🇺🇸
2026.04: A paper was accepted at ICML 2026 @ Seoul🇰🇷
2026.04: A paper was accepted at ACL SRW 2026 @ San Diego🇺🇸
2026.04: Four papers were accepted at ACL 2026 @ San Diego🇺🇸
2026.02: A paper was accepted at LREC 2026 @ Palma de Mallorca🇪🇸
2026.01: I have been appointed as a Principal Researcher at Simulacra Inc. @ Tokyo🇯🇵
2026.01: Two papers were accepted at ICLR 2026 @ Rio de Janeiro 🇧🇷
2026.01: Our paper won the Best Paper Award at AAAI 2026 @ Singapore 🇸🇬
2025.11: A paper was accepted at AAAI 2026 @ Singapore 🇸🇬
2025.10: A paper was accepted at IJCNLP-AACL 2025 @ Mumbai 🇮🇳
2025.09: A paper was accepted as a spotlight at NeurIPS 2025 @ San Diego🇺🇸
2025.08: Three papers were accepted at EMNLP 2025 @ Suzhou🇨🇳
2025.05: Two papers were accepted at ACL 2025 @ Vienna🇦🇹
2025.05: A paper was accepted at IJCAI 2025 @ Montreal🇨🇦

Professional Experience

2023.07 - Present: Postdoctoral researcher @ MBZUAI, Timothy Baldwin's group, Abu dhabi🇦🇪
2026.01 - Present: Principal researcher @ Simulacra Inc., Tokyo🇯🇵
2025:11 - Present: Project Researcher @ NII/LLMC, AI safety group, Tokyo🇯🇵
2019.03 - Present: Collaborator @ University of Liverpool, UoL NLP Group, Liverpool🇬🇧
2023.07 - 2026.03: Research Fellow @ Tokyo Institute of Technology, Okazaki Lab, Tokyo🇯🇵
2022.12 - 2024.02: Collaborator @ Carnegie Mellon University, NeuLab (Advisor: Prof. Graham Neubig), Pittsburgh🇺🇸
2021.04 - 2023.05: Postdoctoral Researcher @ Tokyo Institute of Technology, Okazaki Lab, Tokyo🇯🇵
2021.04 - 2023.03: Visiting Researcher @ Tokyo Metropolitan University, Komachi Lab, Tokyo🇯🇵
2022.09 - 2022.11: Visiting Researcher @ Carnegie Mellon University, NeuLab (Advisor: Prof. Graham Neubig), Pittsburgh🇺🇸
2019.11 - 2019.12: Visiting Researcher @ Tohoku University, Natural Language Processing Lab, Sendai🇯🇵
2019.08 - 2019.09: Visiting Researcher @ Tohoku University, Natural Language Processing Lab, Sendai🇯🇵
2018.10 - 2019.02: Visiting Researcher @ UoL NLP Group (Advisor: Prof. Danushka Bollegala), University of Liverpool, Liverpool🇬🇧
2018.08 - 2021.03 : NLP Research Assistant @ RIKEN AIP, Natural Language Understanding Team (Team Leader: Prof. Kentaro Inui), Tokyo🇯🇵
2018.07: Participate in Deep Learning Camp (24/562) for a month, Jeju🇰🇷
2017.06 - 2017.12: Part time job as NLP Engineer @ Best Teacher, Inc., Tokyo🇯🇵
2016.10 - 2018.03: Joint-research with TOYOTA Motor Corporation., Tokyo🇯🇵
2016.08 - 2016.09: Research internship @ TOYOTA InfoTechnology Center Co., LTD., Tokyo🇯🇵

Publications

2026

Masahiro Kaneko, Timothy Baldwin. In-Context Learning as Implicit Policy Gradient. Third Conference on Language Modeling (COLM). [Paper]
Masanari Oi, Mahiro Ukai, Masahiro Kaneko, Naoaki Okazaki, Nakamasa Inoue. Autoregressive Direct Preference Optimization. Forty-Third International Conference on Machine Learning (ICML). [arXiv]
Ryo Mitsuhashi, Gaku Morio, Ayana Niwa, Masahiro Kaneko, Kentaro Inui, Terufumi Morishita, Yuta Koreeda, Yasuhiro Sogawa. Disentangling the Effects of Unlearning in Measuring Parametric Faithfulness of Chain-of-Thought. The 64th Annual Meeting of the Association for Computational Linguistics: Student Research Workshop (ACL SRW). [arXiv]
Masahiro Kaneko, Danushka Bollegala, Timothy Baldwin. A Multilingual Social Bias Benchmark Incorporating Thinking Processes. The 64th Annual Meeting of the Association for Computational Linguistics (ACL). [Paper] [Data]
Yuxia Wang, Rui Xing, Jonibek Mansurov, Giovanni Puccetti, Zhuohan Xie, Minh Ngoc Ta, Jiahui Geng, Jinyan Su, Mervat Abassy, Saad El Dine Ahmed, Kareem Elozeiri, Nurkhan Laiyk, Maiya Goloburda, Tarek Mahmoud, Raj Vardhan Tomar, Alexander Aziz, Ryuto Koike, Masahiro Kaneko, Artem Shelmanov, Ekaterina Artemova, Vladislav Mikhailov, Akim Tsvigun, Alham Fikri Aji, Nizar Habash, Iryna Gurevych, Preslav Nakov. Is Human-like Text Liked by Human? Multilingual Human Detection and Preference Against AI. The 64th Annual Meeting of the Association for Computational Linguistics (ACL). [arXiv]
Ryuji Hashimoto, Masahiro Kaneko, Ryosuke Takata, Takehiro Takayanagi, Kiyoshi Izumi. From Heard to Lived Opinions: Simulating Opinion Dynamics with Grounded LLM Agents in Economic Environments. The 64th Annual Meeting of the Association for Computational Linguistics (Findings: ACL). [arXiv]
Ryuto Koike, Masahiro Kaneko, Ayana Niwa, Preslav Nakov, Naoaki Okazaki. ExaGPT: Example-Based Machine-Generated Text Detection for Improving Interpretability. The 64th Annual Meeting of the Association for Computational Linguistics (Findings: ACL). [arXiv]
Taihei Shiotani, Masahiro Kaneko, Naoaki Okazaki. A Japanese Benchmark for Evaluating Social Bias in Reasoning Based on Attribution Theory. arXiv. [arXiv] [Data]
Taihei Shiotani, Masahiro Kaneko, Ayana Niwa, Yuki Maruyama, Daisuke Oba, Masanari Ohi, Naoaki Okazaki. JUBAKU: An Adversarial Benchmark for Exposing Culturally Grounded Stereotypes in Japanese LLMs. arXiv. [arXiv][Data]
Masahiro Kaneko, Ayana Niwa, Timothy Baldwin. JailNewsBench: Multi-Lingual and Regional Benchmark for Fake News Generation under Jailbreak Attacks. The Fourteenth International Conference on Learning Representations (ICLR). [arXiv] [Code & Data]
Daisuke Oba, Danushka Bollegala, Masahiro Kaneko, Naoaki Okazaki. Stopping Computation for Converged Tokens in Masked Diffusion-LM Decoding. The Fourteenth International Conference on Learning Representations (ICLR). [arXiv]
Masanari Ohi, Masahiro Kaneko, Naoaki Okazaki, Nakamasa Inoue. HarmonicEval: Multi-modal, Multi-task, Multi-criteria Automatic Evaluation Using a Vision Language Model. The 15th edition of the Language Resources and Evaluation Conference (LREC). [arXiv]
Masahiro Kaneko. Paraphrasing Adversarial Attack on LLM-as-a-Reviewer. arXiv. [arXiv]
Yang Liu, Masahiro Kaneko, Chenhui Chu. On the Alignment of Large Language Models with Global Human Opinion. The 40th Annual AAAI Conference on Artificial Intelligence (AAAI). [arXiv] [Code] Best Paper Award for Alignment Track 🎉

2025

Masahiro Kaneko, Timothy Baldwin. Bits Leaked per Query: Information-Theoretic Bounds on Adversarial Attacks against LLMs. The Thirty-Ninth Annual Conference on Neural Information Processing Systems (Spotlight: NeurIPS). [arXiv]
Masahiro Kaneko, Zeerak Talat, Timothy Baldwin. Online Learning Defense against Iterative Jailbreak Attacks via Prompt Optimization. 14th International Joint Conference on Natural Language Processing & 4th Asia-Pacific Chapter of the Association for Computational Linguistics. (IJCNLP-AACL) [arXiv] [pdf]
Ryuto Koike, Liam Dugan, Masahiro Kaneko, Chris Callison-Burch, Naoaki Okazaki. Machine Text Detectors are Membership Inference Attacks. arXiv. [arXiv] [Code]
Masahiro Kaneko, Timothy Baldwin. A Little Leak Will Sink a Great Ship: Survey of Transparency for Large Language Models from Start to Finish. The 2025 Conference on Empirical Methods in Natural Language Processing (EMNLP). [arXiv]
Masahiro Kaneko, Alham Fikri Aji, Timothy Baldwin. Balanced Multi-Factor In-Context Learning for Multilingual Large Language Models. The 2025 Conference on Empirical Methods in Natural Language Processing (EMNLP). [arXiv]
Rem Hida, Masahiro Kaneko, Naoaki Okazaki. Social Bias Evaluation for Large Language Models Requires Prompt Variations. The 2025 Conference on Empirical Methods in Natural Language Processing (Findings: EMNLP). [arXiv]
Masahiro Kaneko, Youmi Ma, Yuki Wata, Naoaki Okazaki. Sampling-based Pseudo-Likelihood for Membership Inference Attacks. The 63rd Annual Meeting of the Association for Computational Linguistics (Findings: ACL). [arXiv] [Code]
Ayana Niwa, Masahiro Kaneko, Kentaro Inui. Rectifying Belief Space via Unlearning to Harness LLMs’ Reasoning. The 63rd Annual Meeting of the Association for Computational Linguistics (Findings: ACL). [arXiv]
Masahiro Kaneko, Danushka Bollegala, Timothy Baldwin. Eagle 🦅: Ethical Dataset Given from Real Interactions. The 34th International Joint Conference on Artificial Intelligence (IJCAI). [arXiv] [Data]
Panatchakorn Anantaprayoon, Masahiro Kaneko, Naoaki Okazaki. Intent-Aware Self-Correction for Mitigating Social Biases in Large Language Models. arXiv. [arXiv]
Masahiro Kaneko, Danushka Bollegala, Timothy Baldwin. The Gaps between Fine Tuning and In-context Learning in Bias Evaluation and Debiasing. The 31st International Conference on Computational Linguistics (COLING). [arXiv] [paper]
Yuxia Wang, Artem Shelmanov, Jonibek Mansurov, Akim Tsvigun, Vladislav Mikhailov, Rui Xing, Zhuohan Xie, Jiahui Geng, Giovanni Puccetti, Ekaterina Artemova, Jinyan Su, Minh Ngoc Ta, Mervat Abassy, Kareem Elozeiri, Saad El Dine Ahmed, Maiya Goloburda, Tarek Mahmoud, Raj Vardhan Tomar, Alexander Aziz, Nurkhan Laiyk, Osama Mohammed Afzal, Ryuto Koike, Masahiro Kaneko, Alham Fikri Aji, Nizar Habash, Iryna Gurevych, Preslav Nakov. GenAI Content Detection Task 1: English and Multilingual Machine-generated Text Detection: AI vs. Human. The 1st Workshop on GenAI Content Detection (GenAIC). [WebSite] [arXiv]

2024

Ryuto Koike, Masahiro Kaneko, Naoaki Okazaki. How You Prompt Matters! Even Task-Oriented Constraints in Instructions Affect LLM-Generated Text Detection. The 2024 Conference on Empirical Methods in Natural Language Processing (Findings: EMNLP). [arXiv]

Mengsay Loem, Masahiro Kaneko, Naoaki Okazaki. SAIE Framework: Support Alone Isn't Enough - Advancing LLM Training with Adversarial Remarks. The 27th European Conference on Artificial Intelligence (ECAI). [arXiv] [paper]
Masanari Ohi, Masahiro Kaneko, Ryuto Koike, Mengsay Loem, Naoaki Okazaki. Likelihood-based Mitigation of Evaluation Bias in Large Language Models. The 62nd Annual Meeting of the Association for Computational Linguistics (Findings: ACL). [arXiv]
Masahiro Kaneko, Naoaki Okazaki. Controlled Generation with Prompt Insertion for Natural Language Explanations in Grammatical Error Correction. The 2024 Joint International Conference on Computational Linguistics, Language Resources and Evaluation (LREC-COLING). (Short paper). [arXiv] [paper] [data]
Panatchakorn Anantaprayoon, Masahiro Kaneko, Naoaki Okazaki. Evaluating Gender Bias of Pre-trained Language Models in Natural Language Inference by Considering All Labels. The 2024 Joint International Conference on Computational Linguistics, Language Resources and Evaluation (LREC-COLING). (Long paper). [arXiv] [paper] [data]

Masahiro Kaneko, Danushka Bollegala, Naoaki Okazaki, Timothy Baldwin. Evaluating Gender Bias in Large Language Models via Chain-of-Thought Prompting. arXiv. [arXiv]

Masahiro Kaneko, Graham Neubig, Naoaki Okazaki. Solving NLP Problems through Human-System Collaboration: A Discussion-based Approach. The 18th Conference of the European Chapter of the Association for Computational Linguistics (Findings: EACL). (Long paper). [arXiv] [data]
Daisuke Oba, Masahiro Kaneko, Danushka Bollegala. In-Contextual Bias Suppression for Large Language Models. The 18th Conference of the European Chapter of the Association for Computational Linguistics (Findings: EACL). (Long paper). [arXiv] [paper]

Ryuto Koike, Masahiro Kaneko, Naoaki Okazaki. OUTFOX: LLM-generated Essay Detection through In-context Learning with Adversarially Generated Examples. Proceedings of the 38th AAAI Conference on Artificial Intelligence (AAAI). (Acceptance rate: 21.3%) [arXiv]

2023

Masahiro Kaneko, Naoaki Okazaki. Reducing Sequence Length by Predicting Edit Operations with Large Language Models. The 2023 Conference on Empirical Methods in Natural Language Processing (EMNLP). (Long paper, Acceptance rate: 23.3%) [arXiv] [paper]

Masahiro Kaneko, Danushka Bollegala, Naoaki Okazaki. The Impact of Debiasing on the Performance of Language Models in Downstream Tasks is Underestimated. The 13th International Joint Conference on Natural Language Processing and the 3rd Conference of the Asia-Pacific Chapter of the Association for Computational Linguistics (IJCNLP-AACL). (Short paper, Acceptance rate: 19.1%). [arXiv] [paper] [slide]
Mengsay Loem, Masahiro Kaneko, Sho Takase, Naoaki Okazaki. Exploring Effectiveness of GPT-3 in Grammatical Error Correction: A Study on Performance and Controllability in Prompt-Based Methods. In Proceedings of the 18th Workshop on Innovative Use of NLP for Building Educational Applications (BEA). (Long paper) [arXiv] [paper]
Masahiro Kaneko, Danushka Bollegala, Naoaki Okazaki. Comparing Intrinsic Gender Bias Evaluation Measures without using Human Annotated Examples. The 17th Conference of the European Chapter of the Association for Computational Linguistics (EACL). (Short paper). [arXiv] [paper]

2022

Masahiro Kaneko, Danushka Bollegala, Naoaki Okazaki. Gender Bias in Meta-Embeddings. Findings of the Association for Computational Linguistics: The 2022 Conference on Empirical Methods in Natural Language Processing (Findings: EMNLP ). [arXiv] [paper]
Hiroyuki Deguchi, Kenji Imamura, Masahiro Kaneko, Yuto Nishida, Yusuke Sakai, Justin Vasselli, Huy Hien Vu, Taro Watanabe. NAIST-NICT-TIT WMT22 General MT Task Submission. Proceedings of the Seventh Conference on Machine Translation (WMT). [Paper]
Masahiro Kaneko, Danushka Bollegala, Naoaki Okazaki. Debiasing isn't enough! - On the Effectiveness of Debiasing MLMs and their Social Biases in Downstream Tasks. The 29th International Conference on Computational Linguistics (COLING). (Long paper, Acceptance rate: 33.4%) [arXiv] [paper]
Koki Maeda, Masahiro Kaneko, Naoaki Okazaki. IMPARA: Impact-based Metric for GEC using Parallel Data. The 29th International Conference on Computational Linguistics (COLING). (Long paper, Acceptance rate: 33.4%) [paper]
Masahiro Kaneko, Aizhan Imankulova, Danushka Bollegala, Naoaki Okazaki. Gender Bias in Masked Language Models for Multiple Languages. In Proceedings of the 2022 Annual Conference of the North American Chapter of the Association for Computational Linguistics (NAACL). (Long paper, Acceptance rate: 26%) [arXiv] [paper] [code]
Mengsay Loem, Sho Takase, Masahiro Kaneko, Naoaki Okazaki. ExtraPhrase: Efficient Data Augmentation for Abstractive Summarization. In Proceedings of the 2022 Annual Conference of the North American Chapter of the Association for Computational Linguistics: Student Research Workshop (NAACL SRW). [arXiv]
Tosho Hirasawa, Masahiro Kaneko, Aizhan Imankulova, Mamoru Komachi. Pre-trained Word Embedding and Language Model Improve Multimodal Machine Translation: A Case Study in Multi30K. IEEE Access, 2022. [paper]
Yujin Takahashi, Masahiro Kaneko, Masato Mita, Mamoru Komachi. Proficiency Matters Quality Estimation in Grammatical Error Correction. Proceedings of the 13th Language Resources and Evaluation Conference (LREC). [arXiv]
Masahiro Kaneko, Sho Takase, Ayana Niwa, Naoaki Okazaki. Interpretability for Language Learners Using Example-Based Grammatical Error Correction. In Proceedings of the 60th Annual Conference of the Association for Computational Linguistics (ACL). (Long paper, Acceptance rate: 20.75%) [arXiv] [paper] [code]
Yi Zhou, Masahiro Kaneko, Danushka Bollegala. Sense Embeddings are also Biased -- Evaluating Social Biases in Static and Contextualised Sense Embeddings. In Proceedings of the 60th Annual Conference of the Association for Computational Linguistics (ACL). (Long paper, Acceptance rate: 20.75%) [arXiv] [paper] [code]
Masahiro Kaneko and Danushka Bollegala. Unmasking the Mask -- Evaluating Social Biases in Masked Language Models. Proceedings of the 36th AAAI Conference on Artificial Intelligence (AAAI). (Acceptance rate: 15%) [arXiv] [paper] [code]
Mengsay Loem, Sho Takase, Masahiro Kaneko, Naoaki Okazaki. Are Neighbors Enough? Multi-Head Neural n-gram can be Alternative to Self-attention. arXiv. [arXiv]

2021

Raj Dabre, Aizhan Imankulova, Masahiro Kaneko. Studying The Impact Of Document-level Context On Simultaneous Neural Machine Translation. Proceedings of the 18th Biennial Machine Translation Summit (MT Summit). [paper]
Aomi Koyama, Kengo Hotate, Masahiro Kaneko and Mamoru Komachi. Comparison of Grammatical Error Correction Using Back-Translation Models. 2021 Annual Conference of the North American Chapter of the Association for Computational Linguistics: Student Research Workshop (NAACL SRW) (Acceptance rate: 44%) [arXiv] [paper]
Seiichiro Kondo, Kengo Hotate, Tosho Hirasawa, Masahiro Kaneko and Mamoru Komachi. Sentence Concatenation Approach to Data Augmentation for Neural Machine Translation. 2021 Annual Conference of the North American Chapter of the Association for Computational Linguistics: Student Research Workshop (NAACL SRW) (Acceptance rate: 44%) [paper]
Masahiro Kaneko and Danushka Bollegala. Debiasing Pre-trained Contextualised Embeddings. The 16th Conference of the European Chapter of the Association for Computational Linguistics (EACL). (Long paper, Acceptance rate: 27%) [arXiv] [paper] [code] [poster]
Masahiro Kaneko and Danushka Bollegala. Dictionary-based Debiasing of Pre-trained Word Embeddings. The 16th Conference of the European Chapter of the Association for Computational Linguistics (EACL). (Long paper, Acceptance rate: 27%) [arXiv] [paper] [code] [poster]
Raj Dabre, Aizhan Imankulova, Masahiro Kaneko and Abhisek Chakrabarty. Simultaneous Multi-Pivot Neural Machine Translation. arXiv. [arXiv]

2020

Masahiro Kaneko and Danushka Bollegala. Autoencoding Improves Pre-trained Word Embeddings. The 28th International Conference on Computational Linguistics (COLING). (Short paper, Acceptance rate: 26.2%) [arXiv] [paper] [bib] [slide]
Ikumi Yamashita, Satoru Katsumata, Masahiro Kaneko, Aizhan Imankulova and Mamoru Komachi. Cross-lingual Transfer Learning for Grammatical Error Correction. The 28th International Conference on Computational Linguistics (COLING). (Long paper, Acceptance rate: 35.3%) [paper]
Kengo Hotate, Masahiro Kaneko and Mamoru Komachi. Generating Diverse Corrections with Local Beam Search for Grammatical Error Correction. The 28th International Conference on Computational Linguistics (COLING). (Short paper, Acceptance rate: 26.2%) [paper]
Ryoma Yoshimura, Masahiro Kaneko, Tomoyuki Kajiwara and Mamoru Komachi. SOME: Reference-less Sub-Metrics Optimized for Manual Evaluations of Grammatical Error Correction. The 28th International Conference on Computational Linguistics (COLING). (Short paper, Acceptance rate: 26.2%) [paper]
Aizhan Imankulova, Masahiro Kaneko, Tosho Hirasawa and Mamoru Komachi. Towards Multimodal Simultaneous Neural Machine Translation. The Fifth Conference in Machine Translation (WMT). (Acceptance rate: 32.7%) [arXiv] [paper] [code]
Masato Mita, Shun Kiyono, Masahiro Kaneko, Jun Suzuki and Kentaro Inui. A Self-Refinement Strategy for Noise Reduction in Grammatical Error Correction. Findings of the Association for Computational Linguistics: The 2020 Conference on Empirical Methods in Natural Language Processing (Findings: EMNLP ) [paper]
Zizheng Zhang, Tosho Hirasawa, Wei Houjing, Masahiro Kaneko and Mamoru Komachi. Translation of New Named Entities from English to Chinese. In Proceedings of the 7th Workshop on Asian Translation (WAT). [paper]
Masahiro Kaneko, Masato Mita, Shun Kiyono, Jun Suzuki and Kentaro Inui. Encoder-Decoder Models Can Benefit from Pre-trained Masked Language Models in Grammatical Error Correction. In Proceedings of the 58th Annual Conference of the Association for Computational Linguistics (ACL). (Short paper, Acceptance rate: 17.6%) [arXiv] [paper] [bib] [slide] [code]
Hiroto Tamura, Tosho Hirasawa, Masahiro Kaneko and Mamoru Komachi. TMU Japanese-English Multimodal Machine Translation System for WAT 2020. In Proceedings of the 7th Workshop on Asian Translation (WAT): Japanese-English Multimodal Machine Translation track.
Masahiro Kaneko, Aizhan Imankulova, Tosho Hirasawa and Mamoru Komachi. English-to-Japanese Diverse Translation by Combining Forward and Backward Outputs. The 4th Workshop on Neural Generation and Translation (WNGT): Simultaneous Translation And Paraphrase for Language Education (STAPLE) English-to-Japanese track [paper] [bib]

2019

Masahiro Kaneko and Danushka Bollegala. Gender-preserving Debiasing for Pre-trained Word Embeddings. In Proceedings of the 57th Annual Conference of the Association for Computational Linguistics (ACL). (Long paper, Acceptance rate: 25.7%) [arXiv] [paper] [slide] [bib] [code]
Kengo Hotate, Masahiro Kaneko, Satoru Katsumata and Mamoru Komachi. Controlling Grammatical Error Correction Using Word Edit Rate. In Proceedings of the 57th Annual Conference of the Association for Computational Linguistics: Student Research Workshop (ACL SRW). [paper] [bib]
Mio Arai, Masahiro Kaneko and Mamoru Komachi. Grammatical-Error-Aware Incorrect Example Retrieval System for Learners of Japanese as a Second Language. In Proceedings of the 14th Workshop on Innovative Use of NLP for Building Educational Applications (BEA). [paper]
Masahiro Kaneko and Mamoru Komachi. Multi-Head Multi-Layer Attention to Deep Language Representations for Grammatical Error Detection. In 20th International Conference on Computational Linguistics and Intelligent Text Processing (CICLing). [arXiv] [poster]
Masato Mita, Tomoya Mizumoto, Masahiro Kaneko, Ryo Nagata and Kentaro Inui. Cross-Corpora Evaluation and Analysis of Grammatical Error Correction Models — Is Single-Corpus Evaluation Enough? 2019 Annual Conference of the North American Chapter of the Association for Computational Linguistics (NAACL). (Short paper, Acceptance rate: 21.3%) [pdf]
Masahiro Kaneko, Mamoru Komachi. Multi-Head Multi-Layer Attention to Deep Language Representations for Grammatical Error Detection. Computacion y Sistemas. Vol. 23, No. 3, pp. 883-891. September, 2019. [paper]
Aizhan Imankulova, Masahiro Kaneko and Mamoru Komachi. Japanese-Russian TMU Neural Machine Translation System using Multilingual Model for WAT 2019. The 6th Workshop on Asian Translation (WAT): News Commentary task.
Masahiro Kaneko, Kengo Hotate, Satoru Katsumata and Mamoru Komachi. TMU Transformer System Using BERT for Re-ranking at BEA 2019 Grammatical Error Correction on Restricted Track. In Proceedings of the 14th Workshop on Innovative Use of NLP for Building Educational Applications (BEA): Shared Task on Grammatical Error Correction. [paper] [poster] [bib]

2018

Masahiro Kaneko, Tomoyuki Kajiwara and Mamoru Komachi. TMU System for SLAM-2018. In Proceedings of The 13th Workshop on Innovative Use of NLP for Building Educational Applications (BEA): Shared Task on Second Language Acquisition Modeling. June 2018. [paper] [poster] [bib] [code]

2017

Masahiro Kaneko, Yuya Sakaizawa and Mamoru Komachi. Grammatical Error Detection Using Error- and Grammaticality-Specific Word Embeddings. In Proceedings of the 8th International Joint Conference on Natural Language Processing (IJCNLP). (Long paper, Acceptance rate: 31%) [paper] [slide] [bib] [code]

Talks

Gender-preserving Debiasing for Pre-trained Word Embeddings. Academia Meets Amazon. Oct 02, 2019.
Gender-preserving Debiasing for Pre-trained Word Embeddings. GeBNLP2019. Aug 02, 2019. [poster]
Document-level re-ranking for NMT. TFCON2018. Jeju, Korea. July 2018.

Education

2018.04 - 2021.03: Ph.D., Tokyo Metropolitan University, Computer Science
2016.04 - 2018.03: Master, Tokyo Metropolitan University, Computer Science.
2012.04 - 2016.03: Bachelor, Kitami Institute of Technology, Engineering.

Fellowship

2021.04 - 2024.03: Japan Society for the Promotion of Science Research Fellowship for Young Scientists-PD (8/35, I declined the offer)
2019.04 - 2021.03: Japan Society for the Promotion of Science Research Fellowship for Young Scientists-DC2 (107/624)
2018: Tokyo Metropolitan University Dispatch International Student Economic Support

Awards

2026.01: Best Paper Award, The 40th Annual AAAI Conference on Artificial Intelligence@Singapore
2025.09: Polaris.ai Award, The 20th Young Researchers Symposium on Natural Language Processing@Japan
2025.05: Best Paper Award ×2 (16/317), The 39th Annual Conference of the Japanese Society for Artificial Intelligence@Japan
2025.03: Committee Special Award ×2 (32/726), The 31st Annual Meeting of the Association for Natural Language Processing@Japan
2024.09: Encouragement Award (23/187) and CyberAgent Award, The 19th Young Researchers Symposium on Natural Language Processing@Japan
2023.08: PKSHA Technology Award and Hakuhodo Technologies Award, The 18th Young Researchers Symposium on Natural Language Processing@Japan
2023.03: Committee Special Award (26/579), The 31st Annual Meeting of the Association for Natural Language Processing@Japan
2022.03: Outstanding Paper Award (9/386), The 28rd Annual Meeting of the Association for Natural Language Processing@Japan
2021.08: Recommended Doctoral Thesis, Grammatical and Semantic Biases in Representation Learning from Raw Datasets. Information Processing Society of Japan.
2017.03: Young Researcher Award (4/301), The 23rd Annual Meeting of the Association for Natural Language Processing@Japan

Reviewer

Area Chair
- 2026: EACL, ACL
- 2025: NAACL, ACL, EMNLP, AACL
- 2024: *SEM, EMNLP, COLING
- 2023: EMNLP

Peer
- 2026: AAAI, ICLR, CL, ICML
- 2025: NeurIPS, AAAI, TACL
- 2024: ECAI, NAACL, ACL, AAAI, KDD
- 2023: ACL, BEA, AAAI
- 2022: AAAI, ARR, COLING, EMNLP
- 2021: NAACL, ACL, EMNLP, ARR
- 2020: ACL, EMNLP
- 2019: PACLIC
Secondary
- 2020: ACL, CIKM, EMNLP
- 2019: NAACL, *SEM, ACL, ACL demo, BEA
- 2018: NAACL, ACL demo, EMNLP demo
- 2017: NLPTEA

Activities

2021.03 - 2023.03: Journal of Natural Language Processing, Editorial Committee

I was a member of 2 academic activities in Japan. Details are here.