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RIKEN Center for Advanced Intelligence Project Knowledge Acquisition Team

Team Leader: Yuji Matsumoto (D.Eng.)

Research Summary

Yuji  Matsumoto(D.Eng.)

A huge amount of knowledge is being produced along with the advance of scientific fields. Such expert knowledge is partly organized in domain databases, but a large portion of it is still kept in scholarly documents. It is time-consuming and cumbersome to construct domain databases and to conduct content-aware retrieval of scholarly documents. The Knowledge Acquisition Team aims at text/figure analysis and knowledge extraction from scholarly documents and also at development of infrastructure for content-aware retrieval of scholarly documents through domain database completion, knowledge organization, relation and summarization technologies.

Research Subjects:

  • Natural Language Processing
  • Knowledge Acquisition
  • Machine Learning

Main Research Fields

  • Informatics

Related Research Fields

  • Multidisciplinary
  • Complex Systems
  • Intelligent informatics

Keywords

  • Natural Language Processing
  • Knowledge Acquisition
  • Machine Learning
  • Information Extraction
  • Information Retrieval

Selected Publications

  • 1. Phi, V-T., Santoso, J., Tran V-H., Shindo H., Shimbo M., Matsumoto, Y.:
    "Distant Supervision for Relation Extraction via Piecewise Attention and Bag-Level Contextual Inference"
    IEEE Access, Volume:7, Issue:1, pp.103570-103582, (2019).
  • 2. Wada T., Iwata T., Matsumoto, Y.:
    "Unsupervised Multilingual Word Embedding with Limited Resources using Neural Language Models"
    Proceedings of the 57th Annual Meeting of the Association for Computational Linguistics (ACL 2019), long paper, pp. 3113-3124, (2019).
  • 3. Teranishi, H., Shindo H., Matsumoto, Y.:
    "Decomposed Local Models for Coordinate Structure Parsing"
    Proceedings of the 17th Annual Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies (NAACL-HLT 2019), long paper, pp.3394-3403, (2019).
  • 4. Tran, V-H., Phi, V-T., Shindo H., Matsumoto, Y.:
    "Relation Classification Using Segment-Level Attention-based CNN and Dependency-based RNN"
    Proceedings of the 17th Annual Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies (NAACL-HLT 2019), short paper, pp.2793-2798, (2019).
  • 5. Liu, J., Shindo, H., Matsumoto, Y.:
    "Development of a computer-assisted Japanese functional expression learning system for Chinese-speaking learners"
    Educational Technology Research and Development, Springer, Volume:67, Issue:5, pp.1307-1331, (2019).
  • 6. Phan, D-A., Matsumoto, Y., Shindo, H.:
    "Autoencoder for Semisupervised Multiple Emotion Detection of Conversation Transcripts"
    IEEE Transactions on Affective Computing, (2018).
  • 7. Ouchi, H., Shindo, H., Matsumoto, Y.:
    "A Span Selection Model for Semantic Role Labeling"
    Proceedings of the 2018 Conference on Empirical Methods in Natural Language Processing (EMNLP 2018), pp.1630-1642, (2018).
  • 8. Phi, V-T., Santoso, J., Shimbo M., Matsumoto, Y.:
    "Ranking-Based Automatic Seed Selection and Noise Reduction for Weakly Supervised Relation Extraction"
    Proceedings of the 56th Annual Meeting of the Association for Computational Linguistics (ACL-2018), pp.89–95, (2018).
  • 9. Kobayashi, Y., Shimbo, M., Matsumoto, Y.:
    Citation Recommendation Using Distributed Representation of Discourse Facets in Scientific Articles
    Proceedings of The ACM/IEEE Joint Conference on Digital Libraries (JCDL-2018), pp.243-251, (2018).
  • 10. Ouchi, H., Shindo, H., Matsumoto, Y.:
    "Neural Modeling of Multi-Predicate Interactions for Japanese Predicate Argument Structure Analysis"
    Proceedings of the 55th Annual Meeting of the Association for Computational Linguistics (ACL), Volume 1, pp.1591-1600 (2017).

Related Links

Lab Members

Principal investigator

Yuji Matsumoto
Team Leader

Core members

Noriki Nishida
Postdoctoral Researcher
Hiroki Teranishi
Postdoctoral Researcher
Narumi Tokunaga
Technical Staff II
Hiroki Ouchi
Visiting Scientist
Takashi Okumura
Visiting Scientist
Yutaro Shigeto
Visiting Scientist
Ikuya Yamada
Visiting Scientist
Junichiro Mori
Visiting Scientist
Takuo Hamaguchi
Visiting Scientist
Katsuhiko Hayashi
Visiting Scientist
Kouji Kozaki
Visiting Scientist
Shusuke Tatsumi
Visiting Scientist
Akiko Aizawa
Visiting Scientist
Takayoshi Shibahara
Research Part-time Worker I

Careers

Position Deadline
Seeking a Research Scientist or Postdoctoral Researcher (W21036) Open until filled

Contact Information

Nihonbashi 1-chome Mitsui Building, 15th floor,
1-4-1 Nihonbashi, Chuo-ku, Tokyo
Tel: +81-(0)3-6225-2482
Fax: +81-(0)3-3271-7202
Email: yuji.matsumoto [at] riken.jp

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