大西貴士: NECの研究者

研究開発トップに戻る

2019年10月31日

大西貴士（Takashi Onishi）

主任

研究分野

自然言語処理

論文

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.

学会

言語処理学会
人工知能学会

学会発表

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.
田中友紀子, 平岡拓也, 大西貴士, 鶴岡慶雅, 滝野晶平, 松本陽介. 電力ダム操作における強化学習型シンボルグラウンディングによる意思決定支援に関する検討. 2018年度人工知能学会全国大会（第32回）, 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. 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.
大西貴士, 内山将夫, 隅田英一郎. “文書文脈を用いた翻訳精度、速度の改善.” 言語処理学会第17回年次大会講演論文集, pp.822-825, 2011.
大西貴士, 内山将夫, 隅田英一郎. “パラフレーズラティスを用いた統計的機械翻訳.” 言語処理学会第16回年次大会講演論文集, pp.1014-1017, 2010.
大西貴士, 岡嶋穣, 河合剛巨, 中澤聡, 安藤真一: 時系列分析によるＷｅｂ文書の情報信頼性判断支援：時系列変化からの重要トピックの抽出, 言語処理学会第15回年次大会, pp.104-107, 2009.
中澤聡, 岡嶋穣, 大西貴士, 河合剛巨, 安藤真一: 時系列分析によるＷｅｂ文書の情報信頼性判断支援：全体概要, 言語処理学会第15回年次大会, pp.100-103, 2009.
大西貴士, 黒橋禎夫: 国語辞典からの類義表現抽出とSYNGRAPHデータ構造による柔軟マッチング, 言語処理学会第12回年次大会, pp.1127-1130, 2006
大西貴士, 黒橋禎夫: 様々な表現のずれを吸収するテキスト検索システム, 言語処理学会第11回年次大会, pp.1161-1164 (2005.3).
黒橋禎夫, 大泉敏貴, 大西貴士, 柴田知秀, 鍜治伸裕, 河原大輔, 岡本雅史, 西田豊明: 会話型知識プロセスのためのテキストの自動プレゼンテーション, 2005年情報学シンポジウム, pp.145-152, 2005