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Our Researchers

October 31, 2019

Takashi Onishi

Assistant Manager
Automated Reasoning Research Group
Data Science Research Laboratories

Research Domains

  • Natural Language Processing

Publication List

  • Takashi Onishi, Masao Utiyama and Eiichiro Sumita. 2011. Paraphrase Lattice for Statistical Machine Translation. IEICE TRANSACTION on Information and Systems, Vol.E94-D, No.6, pp.1299-1305.
  • Isao Goto, Masao Utiyama, Takashi Onishi, and Eiichiro Sumita. 2012. "An Empirical Comparison of Parsers in Constraining Reordering for E-J Patent Machine Translation." Journal of Information Processing, Vol. 20, No. 4, pp.871-882.

Memberships

  • The Association for Natural Language Processing
  • The Japan Society for Artificial Intelligence

Conference presentation

  • Takuya Hiraoka, Takahisa Imagawa, Tatsuya Mori, Takashi Onishi, Yoshimasa Tsuruoka. Learning Robust Options by Conditional Value at Risk Optimization. Thirty-third Conference on Neural Information Processing System (NeurIPS), 2019.
  • Seydou Ba, Takuya Hiraoka, Takashi Onishi, Toru Nakata, Yoshimasa Tsuruoka. Monte Carlo Tree Search with Scalable Simulation Periods for Continuously Running Tasks. 31st International Conference on Tools with Artificial Intelligence (ICTAI), 2019.
  • Kazeto Yamamoto, Takashi Onishi, and Yoshimasa Tsuruoka. Hierarchical Reinforcement Learning with Abductive Planning. IJCAI 2018 Workshop on Planning and Learning, 2018.
  • Seydou Ba, Takuya Hiraoka, Takashi Onishi, Toru Nakata and Yoshimasa Tsuruoka. Monte Carlo Tree Search with Scalable Simulation Periods. IJCAI 2018 Workshop on Planning and Learning, 2018.
  • Takuya Hiraoka, Takashi Onishi, and Yoshimasa Tsuruoka. Refining Human-Designed Symbol Grounding and High-Level Planning by Policy Gradient. IJCAI 2018 Workshop on Learning and Reasoning, 2018.
  • Shumpei Kubosawa, Takashi Onishi, and Yoshimasa Tsuruoka Synthesizing Chemical Plant Operation Procedure utilizing Knowledge, Dynamic Simulation and Deep Reinforcement Learning. SICE2018, 2018.
  • Shota Motoura, Kazeto Yamamoto, Shumpei Kubosawa, and Takashi Onishi. Translating MFM into FOL: towards plant operation planning. Proceedings of the Third International Workshop on Functional Modelling for Design and Operation of Engineering Systems, 24 - 25 May, 2018, Kurashiki, Japan
  • Shohei Higashiyama, Kunihiko Sadamasa, Takashi Onishi and Yotaro Watanabe. Event Relation Acquisition Using Dependency Patterns and Confidence-Weighted Co-occurrence Statistics. In Proceedings of the 2nd International Workshop on Language Technologies and Applications (LTA'17), 2017.
  • Aobo Wang, Daniel Andrade, Takashi Onishi and Kai Ishikawa. Chinese Informal Word Normalization: an Experimental Study. International Joint Conference on Natural Language Processing (IJCNLP), 2013.
  • Daniel Andrade, Masaaki Tsuchida, Takashi Onishi, Kai Ishikawa. Synonym Acquisition Using Bilingual Comparable Corpora. International Joint Conference on Natural Language Processing (IJCNLP), 2013.
  • Daniel Andrade, Masaaki Tsuchida, Takashi Onishi, Kai Ishikawa. Translation Acquisition Using Synonym Set. Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies (HLT-NAACL). 2013.
  • Daniel Andrade, Masaaki Tsuchida, Takashi Onishi, Kai Ishikawa. Detecting Contradiction in Text by Using Lexical Mismatch and Structural Similarity. 10th NTCIR Conference, 2013.
  • Takashi Onishi, Masao Utiyama and Eiichiro Sumita. 2011. Reordering Constraint Based on Document-Level Context. In Proceedings of the 49th Annual Meeting of the Association for Computational Linguistics: Human Language Technologies (ACL HLT 2011), pp.434-438, Oregon, USA.
  • Masao Utiyama, Graham Neubig, Takashi Onishi and Eiichiro Sumita. 2011. Searching Translation Memories for Paraphrases. In Proceedings of the Thirteenth Machine Translation Summit (MT Summit XIII) , pp.325-331, Xiamen, China.
  • Isao Goto, Masao Utiyama, Takashi Onishi and Eiichiro Sumita. 2011. A Comparison Study of Parsers for Patent Machine Translation. In Proceedings of the Thirteenth Machine Translation Summit (MT Summit XIII) , pp.448-455, Xiamen, China.
  • Chooi-Ling Goh, Takashi Onishi and Eiichiro Sumita. 2011. Rule-based Reordering Constraints for Phrase-based SMT. In Proceedings of the 15th Annual Conference of the European Association for Machine Translation (EAMT-2011), pp.113-120, Leuven, Belgium.
  • Takashi Onishi, Masao Utiyama and Eiichiro Sumita. 2010. Paraphrase Lattice for Statistical Machine Translation. In Proceedins of the ACL 2010 Conference Short Papers, pp.1-5, Uppsala, Sweden.
  • Tomohide Shibata, Michitaka Odani, Jun Harashima, Takashi Onishi and Sadao Kurohashi. 2008. SYNGRAPH: A Flexible Matching Method based on Synonymous Expression Extraction from an Ordinary Dictionary and a Web Corpus. In Proceedings of Third International Joint Conference on Natural Language Processing (IJCNLP2008, poster), pp.787-792, Hyderabad, India.

Social activities

  • Annual Conference of The Japanese Society for Artificial Intelligence (JSAI2012, 2013), Program committee member.

Biography

  • 2004.3: Bachelor of Engineering. Faculty of Engineering, University of Tokyo.
  • 2006.3: Master of Engineering. Graduate School of Information Science and Technology, University of Tokyo.
  • 2006.4 - : NEC Corporation
  • (2009.6 - 2011.5 Temporary transfer to National Institute of Information and Communications Technology.)