| 2025 | AIED | Investigating the Influence of Automated Transcription Error Correction on Automated Grading for Handwritten Japanese Answers. | Rina Suzuki, Takahiro Saito, Hisao Usui, Hiroaki Ozaki, Hung Tuan Nguyen, Kanako Komiya, Tsunenori Ishioka, Masaki Nakagawa |
| 2024 | DAS | Error Correction of Japanese Character-Recognition in Answers to Writing-Type Questions Using T5. | Rina Suzuki, Hisao Usui, Hiroaki Ozaki, Hung Tuan Nguyen, Kanako Komiya, Tsunenori Ishioka, Masaki Nakagawa |
| 2023 | ACL | How does the task complexity of masked pretraining objectives affect downstream performance? | Atsuki Yamaguchi, Hiroaki Ozaki, Terufumi Morishita, Gaku Morio, Yasuhiro Sogawa |
| 2023 | INLG | Controlling keywords and their positions in text generation. | Yuichi Sasazawa, Terufumi Morishita, Hiroaki Ozaki, Osamu Imaichi, Yasuhiro Sogawa |
| 2022 | ICML | Rethinking Fano's Inequality in Ensemble Learning. | Terufumi Morishita, Gaku Morio, Shota Horiguchi, Hiroaki Ozaki, Nobuo Nukaga |
| 2021 | AAAI | i-Parser: Interactive Parser Development Kit for Natural Language Processing. | Gaku Morio, Hiroaki Ozaki, Yuta Koreeda, Terufumi Morishita, Toshinori Miyoshi |
| 2021 | EACL | Project-then-Transfer: Effective Two-stage Cross-lingual Transfer for Semantic Dependency Parsing. | Hiroaki Ozaki, Gaku Morio, Terufumi Morishita, Toshinori Miyoshi |
| 2020 | ACL | Towards Better Non-Tree Argument Mining: Proposition-Level Biaffine Parsing with Task-Specific Parameterization. | Gaku Morio, Hiroaki Ozaki, Terufumi Morishita, Yuta Koreeda, Kohsuke Yanai |
| 2020 | CoNLL | Hitachi at MRP 2020: Text-to-Graph-Notation Transducer. | Hiroaki Ozaki, Gaku Morio, Yuta Koreeda, Terufumi Morishita, Toshinori Miyoshi |
| 2019 | CoNLL | Hitachi at MRP 2019: Unified Encoder-to-Biaffine Network for Cross-Framework Meaning Representation Parsing. | Yuta Koreeda, Gaku Morio, Terufumi Morishita, Hiroaki Ozaki, Kohsuke Yanai |
| 2015 | ICDM | Production Estimation for Shale Wells with Sentiment-Based Features from Geology Reports. | Bin Tong, Hiroaki Ozaki, Makoto Iwayama, Yoshiyuki Kobayashi, Anshuman Sahu, Ravigopal Vennelakanti |
| 2015 | SIGIR | Information Retrieval Boosted by Category for Troubleshooting Search System. | Bin Tong, Toshihiko Yanase, Hiroaki Ozaki, Makoto Iwayama |
| 2002 | ICRA | Motion Planning of Under-Actuated Mechanical Systems: Convergence Analysis for Iterative Methods. | Makoto Iwamura, Hiroaki Ozaki, Akira Mohri |
| 2001 | IROS | A feedback control gain tuning for mechatronic systems by iterative trials. | Hiroaki Ozaki, Tetsuji Shimogawa, Chang-Jun Lin |
| 1996 | ICRA | Optimal B-spline joint trajectory generation for collision-free movements of a manipulator under dynamic constraints. | Hiroaki Ozaki, Chang-Jun Lin |