Hiroaki Ozaki

Publication Activity (10 Years)

Years Active: 1982-2023
Publications (10 Years): 28

Top Topics

Natural Language

Frequent Subtrees

Top Venues

CoNLL Shared Task

Publications

Atsuki Yamaguchi, Hiroaki Ozaki, Terufumi Morishita, Gaku Morio, Yasuhiro Sogawa
How does the task complexity of masked pretraining objectives affect downstream performance? ACL (Findings) (2023)
Yuichi Sasazawa, Terufumi Morishita, Hiroaki Ozaki, Osamu Imaichi, Yasuhiro Sogawa
Controlling keywords and their positions in text generation. CoRR (2023)
Yuichi Sasazawa, Terufumi Morishita, Hiroaki Ozaki, Osamu Imaichi, Yasuhiro Sogawa
Controlling keywords and their positions in text generation. INLG (2023)
Atsuki Yamaguchi, Hiroaki Ozaki, Terufumi Morishita, Gaku Morio, Yasuhiro Sogawa
How does the task complexity of masked pretraining objectives affect downstream performance? CoRR (2023)
Yuta Koreeda, Ken-ichi Yokote, Hiroaki Ozaki, Atsuki Yamaguchi, Masaya Tsunokake, Yasuhiro Sogawa
Hitachi at SemEval-2023 Task 3: Exploring Cross-lingual Multi-task Strategies for Genre and Framing Detection in Online News. SemEval@ACL (2023)
Yuta Koreeda, Ken-ichi Yokote, Hiroaki Ozaki, Atsuki Yamaguchi, Masaya Tsunokake, Yasuhiro Sogawa
Team Hitachi at SemEval-2023 Task 3: Exploring Cross-lingual Multi-task Strategies for Genre and Framing Detection in Online News. CoRR (2023)
Masaya Tsunokake, Atsuki Yamaguchi, Yuta Koreeda, Hiroaki Ozaki, Yasuhiro Sogawa
Hitachi at SemEval-2023 Task 4: Exploring Various Task Formulations Reveals the Importance of Description Texts on Human Values. SemEval@ACL (2023)
Gaku Morio, Hiroaki Ozaki, Atsuki Yamaguchi, Yasuhiro Sogawa
Hitachi at SemEval-2022 Task 10: Comparing Graph- and Seq2Seq-based Models Highlights Difficulty in Structured Sentiment Analysis. SemEval@NAACL (2022)
Gaku Morio, Hiroaki Ozaki, Terufumi Morishita, Kohsuke Yanai
End-to-end Argument Mining with Cross-corpora Multi-task Learning. Trans. Assoc. Comput. Linguistics 10 (2022)
Atsuki Yamaguchi, Gaku Morio, Hiroaki Ozaki, Yasuhiro Sogawa
Hitachi at SemEval-2022 Task 2: On the Effectiveness of Span-based Classification Approaches for Multilingual Idiomaticity Detection. SemEval@NAACL (2022)
Terufumi Morishita, Gaku Morio, Shota Horiguchi, Hiroaki Ozaki, Nobuo Nukaga
Rethinking Fano's Inequality in Ensemble Learning. ICML (2022)
Terufumi Morishita, Gaku Morio, Shota Horiguchi, Hiroaki Ozaki, Nobuo Nukaga
Rethinking Fano's Inequality in Ensemble Learning. CoRR (2022)
Gaku Morio, Hiroaki Ozaki, Yuta Koreeda, Terufumi Morishita, Toshinori Miyoshi
i-Parser: Interactive Parser Development Kit for Natural Language Processing. AAAI (2021)
Hiroaki Ozaki, Gaku Morio, Terufumi Morishita, Toshinori Miyoshi
Project-then-Transfer: Effective Two-stage Cross-lingual Transfer for Semantic Dependency Parsing. EACL (2021)
Atsuki Yamaguchi, Gaku Morio, Hiroaki Ozaki, Ken-ichi Yokote, Kenji Nagamatsu
Team Hitachi @ AutoMin 2021: Reference-free Automatic Minuting Pipeline with Argument Structure Construction over Topic-based Summarization. CoRR (2021)
Manikandan Ravikiran, Amin Ekant Muljibhai, Toshinori Miyoshi, Hiroaki Ozaki, Yuta Koreeda, Sakata Masayuki
Hitachi at SemEval-2020 Task 12: Offensive Language Identification with Noisy Labels using Statistical Sampling and Post-Processing. CoRR (2020)
Terufumi Morishita, Gaku Morio, Shota Horiguchi, Hiroaki Ozaki, Toshinori Miyoshi
Hitachi at SemEval-2020 Task 8: Simple but Effective Modality Ensemble for Meme Emotion Recognition. SemEval@COLING (2020)
Kohei Togami, Hiroaki Ozaki, Yuki Yumita, Anri Kitayama, Hitoshi Tada, Sumio Chono
Three-Dimensional Imaging of Pulmonary Fibrotic Foci at the Alveolar Scale Using Tissue-Clearing Treatment with Staining Techniques of Extracellular Matrix. Int. J. Biomed. Imaging 2020 (2020)
Hiroaki Ozaki, Gaku Morio, Yuta Koreeda, Terufumi Morishita, Toshinori Miyoshi
Hitachi at MRP 2020: Text-to-Graph-Notation Transducer. CoNLL Shared Task (2020)
Terufumi Morishita, Gaku Morio, Hiroaki Ozaki, Toshinori Miyoshi
Hitachi at SemEval-2020 Task 7: Stacking at Scale with Heterogeneous Language Models for Humor Recognition. SemEval@COLING (2020)
Gaku Morio, Hiroaki Ozaki, Terufumi Morishita, Yuta Koreeda, Kohsuke Yanai
Towards Better Non-Tree Argument Mining: Proposition-Level Biaffine Parsing with Task-Specific Parameterization. ACL (2020)
Gaku Morio, Terufumi Morishita, Hiroaki Ozaki, Toshinori Miyoshi
Hitachi at SemEval-2020 Task 10: Emphasis Distribution Fusion on Fine-Tuned Language Models. SemEval@COLING (2020)
Terufumi Morishita, Gaku Morio, Hiroaki Ozaki, Toshinori Miyoshi
Hitachi at SemEval-2020 Task 3: Exploring the Representation Spaces of Transformers for Human Sense Word Similarity. SemEval@COLING (2020)
Manikandan Ravikiran, Amin Ekant Muljibhai, Toshinori Miyoshi, Hiroaki Ozaki, Yuta Koreeda, Sakata Masayuki
Hitachi at SemEval-2020 Task 12: Offensive Language Identification with Noisy Labels Using Statistical Sampling and Post-Processing. SemEval@COLING (2020)
Gaku Morio, Terufumi Morishita, Hiroaki Ozaki, Toshinori Miyoshi
Hitachi at SemEval-2020 Task 11: An Empirical Study of Pre-Trained Transformer Family for Propaganda Detection. SemEval@COLING (2020)
Yuta Koreeda, Gaku Morio, Terufumi Morishita, Hiroaki Ozaki, Kohsuke Yanai
Hitachi at MRP 2019: Unified Encoder-to-Biaffine Network for Cross-Framework Meaning Representation Parsing. CoNLL Shared Task (2019)
Mengru Wang, Hiroaki Ozaki, Yuta Koreeda, Kohsuke Yanai
Split First and Then Rephrase: Hierarchical Generation for Sentence Simplification. PACLING (2019)
Yuta Koreeda, Gaku Morio, Terufumi Morishita, Hiroaki Ozaki, Kohsuke Yanai
Hitachi at MRP 2019: Unified Encoder-to-Biaffine Network for Cross-Framework Meaning Representation Parsing. CoRR (2019)
Bin Tong, Toshihiko Yanase, Hiroaki Ozaki, Makoto Iwayama
Information Retrieval Boosted by Category for Troubleshooting Search System. GSB@SIGIR (2015)
Bin Tong, Hiroaki Ozaki, Makoto Iwayama, Yoshiyuki Kobayashi, Anshuman Sahu, Ravigopal Vennelakanti
Production Estimation for Shale Wells with Sentiment-Based Features from Geology Reports. ICDM Workshops (2015)
Hiroaki Ozaki, Toshiyuki Hirano, Takaya Yamada, Tsukasa Kato, Ryo Taguchi, Masahiro Hoguro, Taizo Umezaki
Developping Confocal Laser Microscope and fitting adjacent layer images. MHS (2012)
Hiroaki Ozaki, Tetsufumi Kawamura, Hironori Wakana, Takanori Yamazoe, Hiroyuki Uchiyama
Wireless operations for 13.56-MHz band RFID tag using amorphous oxide TFTs. IEICE Electron. Express 8 (4) (2011)
Makoto Iwamura, Hiroaki Ozaki, Akira Mohri
Motion Planning of Under-Actuated Mechanical Systems: Convergence Analysis for Iterative Methods. ICRA (2002)
Hiroaki Ozaki, Tetsuji Shimogawa, Chang-Jun Lin
A feedback control gain tuning for mechatronic systems by iterative trials. IROS (2001)
Hiroaki Ozaki, Chang-Jun Lin
Collision-Free Trajectory Planning for a Two-Dimensional Mobile Robot by Optimizing Continuous Curves. J. Robotics Mechatronics 10 (4) (1998)
Tetsuji Shimogawa, Chang-Jun Lin, Hiroaki Ozaki
Feedback gain tuning by the complex method- application examples for an inverted pendulum and flexible arm control. Adv. Robotics 13 (3) (1998)
Hiroaki Ozaki, Chang-Jun Lin
Optimal B-spline joint trajectory generation for collision-free movements of a manipulator under dynamic constraints. ICRA (1996)
Hiroaki Ozaki, Hua Chiu
Trajectory Planning of Manipulator Using Optimization of Uniform B-Spline. J. Robotics Mechatronics 6 (6) (1994)
Hiroaki Ozaki, Tatsuyuki Shimadzu, Akira Mohri
Collision-free path generation for a mobile robot by an artificial transformation of obstacle spaces. Robotica 7 (2) (1989)
Motoji Yamamoto, Hiroaki Ozaki, Akira Mohri
Planning of manipulator joint trajectories by an iterative method. Robotica 6 (2) (1988)
Hiroaki Ozaki, Akira Mohri
Synthesis of a minimum-time manipulator trajectories with geometric path constraints using time scaling. Robotica 6 (1) (1988)
Hiroaki Ozaki, Akira Mohri
Planning of collision-free movements of a manipulator with dynamic constraints. Robotica 4 (3) (1986)
Hiroaki Ozaki, Shigeaki Waku, Akira Mohri, Masaru Takata
Pattern Recognition of a Grasped Object by Unit-Vector Distribution. IEEE Trans. Syst. Man Cybern. 12 (3) (1982)