no code implementations • SpaNLP (ACL) 2022 • Van-Hien Tran, Hiroki Ouchi, Taro Watanabe, Yuji Matsumoto
Zero-shot relation extraction (ZSRE) aims to predict target relations that cannot be observed during training.
Ranked #3 on
Zero-shot Relation Classification
on FewRel
no code implementations • COLING 2022 • Shuhei Kurita, Hiroki Ouchi, Kentaro Inui, Satoshi Sekine
Semantic Role Labeling (SRL) is the task of labeling semantic arguments for marked semantic predicates.
no code implementations • 22 Oct 2024 • Aitaro Yamamoto, Hiroyuki Otomo, Hiroki Ouchi, Shohei Higashiyama, Hiroki Teranishi, Hiroyuki Shindo, Taro Watanabe
Previous studies on sequence-based extraction of human movement trajectories have an issue of inadequate trajectory representation.
no code implementations • 8 Oct 2024 • Miyu Oba, Yohei Oseki, Akiyo Fukatsu, Akari Haga, Hiroki Ouchi, Taro Watanabe, Saku Sugawara
What kinds of and how much data is necessary for language models to induce grammatical knowledge to judge sentence acceptability?
1 code implementation • 19 Sep 2024 • Hikaru Asano, Ryo Yonetani, Taiki Sekii, Hiroki Ouchi
This paper presents Text2Traj2Text, a novel learning-by-synthesis framework for captioning possible contexts behind shopper's trajectory data in retail stores.
1 code implementation • 12 Aug 2024 • Peinan Zhang, Yusuke Sakai, Masato Mita, Hiroki Ouchi, Taro Watanabe
With the increase in the more fluent ad texts automatically created by natural language generation technology, it is in the high demand to verify the quality of these creatives in a real-world setting.
no code implementations • 27 Jun 2024 • Ryo Tsujimoto, Hiroki Ouchi, Hidetaka Kamigaito, Taro Watanabe
Explaining temporal changes between satellite images taken at different times is important for urban planning and environmental monitoring.
2 code implementations • 30 Jun 2023 • Yusuke Ide, Masato Mita, Adam Nohejl, Hiroki Ouchi, Taro Watanabe
Lexical complexity prediction (LCP) is the task of predicting the complexity of words in a text on a continuous scale.
1 code implementation • Journal of Natural Language Processing 2023 • Van-Hien Tran, Hiroki Ouchi, Hiroyuki Shindo, Yuji Matsumoto, Taro Watanabe
This study argues that enhancing the semantic correlation between instances and relations is key to effectively solving the zero-shot relation extraction task.
Ranked #1 on
Zero-shot Relation Classification
on FewRel
1 code implementation • 5 Jun 2023 • Miyu Oba, Tatsuki Kuribayashi, Hiroki Ouchi, Taro Watanabe
With the success of neural language models (LMs), their language acquisition has gained much attention.
1 code implementation • 23 May 2023 • Shohei Higashiyama, Hiroki Ouchi, Hiroki Teranishi, Hiroyuki Otomo, Yusuke Ide, Aitaro Yamamoto, Hiroyuki Shindo, Yuki Matsuda, Shoko Wakamiya, Naoya Inoue, Ikuya Yamada, Taro Watanabe
Geoparsing is a fundamental technique for analyzing geo-entity information in text.
no code implementations • 19 May 2023 • Hiroki Ouchi, Hiroyuki Shindo, Shoko Wakamiya, Yuki Matsuda, Naoya Inoue, Shohei Higashiyama, Satoshi Nakamura, Taro Watanabe
We have constructed Arukikata Travelogue Dataset and released it free of charge for academic research.
1 code implementation • SIGDIAL (ACL) 2022 • Shiki Sato, Reina Akama, Hiroki Ouchi, Ryoko Tokuhisa, Jun Suzuki, Kentaro Inui
In this scenario, the quality of the n-best list considerably affects the occurrence of contradictions because the final response is chosen from this n-best list.
no code implementations • 28 Sep 2021 • Hiroki Ouchi, Jun Suzuki, Sosuke Kobayashi, Sho Yokoi, Tatsuki Kuribayashi, Masashi Yoshikawa, Kentaro Inui
Interpretable rationales for model predictions are crucial in practical applications.
1 code implementation • EMNLP 2021 • Ryuto Konno, Shun Kiyono, Yuichiroh Matsubayashi, Hiroki Ouchi, Kentaro Inui
Masked language models (MLMs) have contributed to drastic performance improvements with regard to zero anaphora resolution (ZAR).
no code implementations • Asian Chapter of the Association for Computational Linguistics 2020 • Shin Kanouchi, Masato Neishi, Yuta Hayashibe, Hiroki Ouchi, Naoaki Okazaki
To tackle the challenge, this paper proposes a novel and practical task to explain evidences in recommending hotels given vague requests expressed freely in natural language.
no code implementations • COLING 2020 • Ryuto Konno, Yuichiroh Matsubayashi, Shun Kiyono, Hiroki Ouchi, Ryo Takahashi, Kentaro Inui
This study addresses two underexplored issues on CDA, that is, how to reduce the computational cost of data augmentation and how to ensure the quality of the generated data.
no code implementations • 13 Oct 2020 • Farjana Sultana Mim, Naoya Inoue, Paul Reisert, Hiroki Ouchi, Kentaro Inui
Existing approaches for automated essay scoring and document representation learning typically rely on discourse parsers to incorporate discourse structure into text representation.
1 code implementation • ACL 2020 • Takuma Kato, Kaori Abe, Hiroki Ouchi, Shumpei Miyawaki, Jun Suzuki, Kentaro Inui
In general, the labels used in sequence labeling consist of different types of elements.
1 code implementation • ACL 2020 • Shiki Sato, Reina Akama, Hiroki Ouchi, Jun Suzuki, Kentaro Inui
Existing automatic evaluation metrics for open-domain dialogue response generation systems correlate poorly with human evaluation.
1 code implementation • ACL 2020 • Hiroki Ouchi, Jun Suzuki, Sosuke Kobayashi, Sho Yokoi, Tatsuki Kuribayashi, Ryuto Konno, Kentaro Inui
Interpretable rationales for model predictions play a critical role in practical applications.
no code implementations • IJCNLP 2019 • Hiroki Ouchi, Jun Suzuki, Kentaro Inui
In transductive learning, an unlabeled test set is used for model training.
no code implementations • WS 2019 • Tianqi Wang, Naoya Inoue, Hiroki Ouchi, Tomoya Mizumoto, Kentaro Inui
Most existing SAG systems predict scores based only on the answers, including the model used as base line in this paper, which gives the-state-of-the-art performance.
no code implementations • WS 2019 • Tomoya Mizumoto, Hiroki Ouchi, Yoriko Isobe, Paul Reisert, Ryo Nagata, Satoshi Sekine, Kentaro Inui
This paper provides an analytical assessment of student short answer responses with a view to potential benefits in pedagogical contexts.
no code implementations • ACL 2019 • Tatsuki Kuribayashi, Hiroki Ouchi, Naoya Inoue, Paul Reisert, Toshinori Miyoshi, Jun Suzuki, Kentaro Inui
For several natural language processing (NLP) tasks, span representation design is attracting considerable attention as a promising new technique; a common basis for an effective design has been established.
1 code implementation • ACL 2019 • Farjana Sultana Mim, Naoya Inoue, Paul Reisert, Hiroki Ouchi, Kentaro Inui
Existing document embedding approaches mainly focus on capturing sequences of words in documents.
no code implementations • SEMEVAL 2019 • Kazuaki Hanawa, Shota Sasaki, Hiroki Ouchi, Jun Suzuki, Kentaro Inui
Our system achieved 80. 9{\%} accuracy on the test set for the formal run and got the 3rd place out of 42 teams.
1 code implementation • PACLIC 2018 • Tsubasa Tagami, Hiroki Ouchi, Hiroki Asano, Kazuaki Hanawa, Kaori Uchiyama, Kaito Suzuki, Kentaro Inui, Atsushi Komiya, Atsuo Fujimura, Hitofumi Yanai, Ryo Yamashita, Akinori Machino
We present a new task, suspicious news detection using micro blog text.
2 code implementations • EMNLP 2018 • Hiroki Ouchi, Hiroyuki Shindo, Yuji Matsumoto
We present a simple and accurate span-based model for semantic role labeling (SRL).
Ranked #7 on
Semantic Role Labeling
on CoNLL 2005
no code implementations • ACL 2017 • Hiroki Ouchi, Hiroyuki Shindo, Yuji Matsumoto
The performance of Japanese predicate argument structure (PAS) analysis has improved in recent years thanks to the joint modeling of interactions between multiple predicates.