Profile
Research Interests
- Geography & Language
Currently, I am very interested in the intersection between Geographic Information Science (GIS) and Natural Language Processing (NLP). In order to reach the potential of the two fields, our Geography & Language project tries to connect between maps and text; i.e., grounding location-related expressions onto a map.
- Natural Language Processing
Semantic Parsing, Syntactic Parsing, Named Entity Recognition
- Machine Learning
Structured Prediction, Transductive Learning, Semi-Supervised Learning
Journals
- Instance-Based Neural Dependency Parsing
Hiroki Ouchi, Jun Suzuki, Sosuke Kobayashi, Sho Yokoi, Tatsuki Kuribayashi, Masashi Yoshikawa, Kentaro Inui
Transactions of the Association for Computational Linguistics (TACL) 2021
- Transition-Based Dependency Parsing Exploiting Supertags
Hiroki Ouchi, Kevin Duh, Hiroyuki Shindo, Yuji Matsumoto
IEEE Transactions on Audio, Speech and Language Processing 2016
Refereed Conference Papers (Selected)
- Iterative Span Selection: Self-Emergence of Resolving Orders in Semantic Role Labeling
Shuhei Kurita, Hiroki Ouchi, Kentaro Inui, Satoshi Sekine
In Proceedings of COLING 2022
- Instance-Based Learning of Span Representations: A Case Study through Named Entity Recognition
Hiroki Ouchi, Jun Suzuki, Sosuke Kobayashi, Sho Yokoi, Tatsuki Kuribayashi, Ryuto Konno, Kentaro Inui
In Proceedings of ACL 2020
- Transductive Learning of Neural Language Models for Syntactic and Semantic Analysis
Hiroki Ouchi, Jun Suzuki, Kentaro Inui
In Proceedings of EMNLP 2019
- An Empirical Study of Span Representations in Argumentation Structure Parsing
Tatsuki Kuribayashi, Hiroki Ouchi, Naoya Inoue, Paul Reisert, Toshinori Miyoshi, Jun Suzuki, Kentaro Inui
In Proceedings of ACL 2019.
- A Span Selection Model for Semantic Role Labeling
Hiroki Ouchi, Hiroyuki Shindo, Yuji Matsumoto
In Proceedings of EMNLP 2018.
- Addressee and Response Selection for Multilingual Conversation
Motoki Sato, Hiroki Ouchi, Yuta Tsuboi
In Proceedings of COLING 2018.
- Neural Modeling of Multi-Predicate Interactions for Japanese Predicate Argument Structure Analysis
Hiroki Ouchi, Hiroyuki Shindo, Yuji Matsumoto
In Proceedings of ACL 2017.
- Addressee and Response Selection for Multi-Party Conversation
Hiroki Ouchi, Yuta Tsuboi
In Proceedings of EMNLP 2016.
- Joint Case Argument Identification for Japanese Predicate Argument Structure Analysis
Hiroki Ouchi, Hiroyuki Shindo, Kevin Duh, Yuji Matsumoto
In Proceedings of ACL 2015.
- Improving Dependency Parsers with Supertags
Hiroki Ouchi, Kevin Duh, Yuji Matsumoto
In Proceedings of EACL 2014.
Preprints
- Arukikata Travelogue Dataset [paper] [dataset]
Hiroki Ouchi, Hiroyuki Shindo, Shoko Wakamiya, Yuki Matsuda, Naoya Inoue, Shohei Higashiyama, Satoshi Nakamura, Taro Watanabe
arXiv 2023
Awards
- イチBizアワード優秀賞・部門賞(独創性・新規性部門)
地理空間情報と自然言語処理チーム(代表者:大内啓樹)
内閣官房 (Dec. 2022)
- Outstanding Research Award / 優秀研究賞
Shun Sato, Hiroki Ouchi, Kazuaki Hanawa, Shota Sasaki and Inui Kentaro
IPSJ SIG-NL-249 / 情報処理学会 自然言語処理研究会 (Jul. 2021)
- Special Committee Award / 委員特別賞
Masatoshi Suzuki, Koji Matsuda, Hiroki Ouchi, Jun Suzuki and Inui Kentaro
Annual Meeting of ANLP / 言語処理学会 年次大会 (Mar. 2021)
- Special Committee Award / 委員特別賞
Shiki Sato, Reina Akama, Hiroki Ouchi, Jun Suzuki and Inui Kentaro
Annual Meeting of ANLP / 言語処理学会 年次大会 (Mar. 2021)
- Best Paper Award / 最優秀論文賞
Tatsuki Kuribayashi, Hiroki Ouchi, Naoya Inoue, Jun Suzuki, Paul Reisert, Toshinori Miyoshi and Kentaro Inui
The Association for Natural Language Processing / 言語処理学会論文誌 (Mar. 2021)
- Outstanding Reviewers of EMNLP 2020
Hiroki Ouchi
EMNLP 2020 (Nov. 2020)
- Outstanding Reviewers of EMNLP-IJCNLP 2019
Hiroki Ouchi
EMNLP-IJCNLP 2019 (Nov. 2019)
- Outstanding Research Award / 優秀研究賞
Masatoshi Suzuki, Koji Matsuda, Hiroki Ouchi, Jun Suzuki and Inui Kentaro
IPSJ SIG-NL-241 / 情報処理学会 自然言語処理研究会 (Aug. 2019)
- Outstanding Research Award / 優秀研究賞
Hiroki Ouchi, Hiroyuki Shindo and Yuji Matsumoto
IPSJ SIG-NL-236 / 情報処理学会 自然言語処理研究会 (Jul. 2018)
- IPSJ Certificate of Excellent Ph.D. Thesis / 研究会推薦博士論文
Hiroki Ouchi
Information Processing Society of Japan / 情報処理学会 (Jul. 2018)
- Outstanding Research Award / 優秀研究賞
Hiroki Ouchi, Hiroyuki Shindo and Yuji Matsumoto
IPSJ SIG-NL-233 / 情報処理学会 自然言語処理研究会 (Oct. 2017)
- Young Researcher Award / 若手奨励賞
Hiroki Ouchi, Hiroyuki Shindo and Yuji Matsumoto
Annual Meeting of ANLP / 言語処理学会 年次大会 (Mar. 2017)
- Outstanding Research Award / 優秀研究賞
Hiroki Ouchi, Hiroyuki Shindo and Yuji Matsumoto
IPSJ SIG-NL-229 / 情報処理学会 自然言語処理研究会 (Dec. 2016)
Resarch Grants
Academic Activities
- International conference committee / 国際会議運営
TACL reviewer (2020-)
ACL reviewer
EMNLP reviewer
IJCNLP reviewer
IJCAI reviewer
- Domestic conference committee / 国内会議運営
情報処理学会 自然言語処理研究会 運営委員 (2018-)
- Journals / ジャーナル運営
言語処理学会 論文誌 editorial board (2020-)
言語処理学会 論文誌 reviewer
情報処理学会 論文誌 reviewer
人工知能学会 論文誌 reviewer
電子情報通信学会 論文誌 reviewer
Education
- Nara Institute of Science and Technology
Ph.D. in Engineering (Mar. 2018)
Advisor: Yuji Matsumoto
- Nara Institute of Science and Technology
M.S. in Engineering (Mar. 2015)
Advisor: Yuji Matsumoto
- Ritsumeikan University
M.A. in Applied Linguistics (Mar. 2013)
Advisor: Ken Matsuda
- Miyagi University of Education
B.A. in Education (Mar. 2011)
Advisor: Wataru Suzuki
Work Experience