Hidetaka Kamigaito (上垣外 英剛)'s Home Page

Career

    • April 2018-Current, Assistant Professor of Okumura-Takamura Lab in Tokyo Institute of Technology.
    • April 2017-March 2018, Research Associate at NTT CS Labs.
    • April 2015-March 2017, Technical Advisor at m0mentum.
    • August 2014-March 2015, Fixed-term Technician at National Institute of Information and Communications Technology, Japan (NICT)

Research Interest

    • Machine Translation
    • Syntactic Parsing

Education

    • Ph.D. (Engineering), Supervisor: Hiroya Takamura, March 2017
      • April 2014-March 2017, Tokyo Institute of Technology, JAPAN
        • Department of Computational Intelligence and Systems Science
    • Master of Engineering, Supervisor: Hiroya Takamura and Manabu Okumura, March 2014
      • April 2012-March 2014, Tokyo Institute of Technology, JAPAN
        • Department of Computational Intelligence and Systems Science
    • Bachelor of Engineering, Supervisor: Haruo Yokota, March 2012
      • April 2008-March 2012, Tokyo Institute of Technology, JAPAN
        • Department of Computer Science

Internship

    • NTT Communication Science Laboratories, Japan
      • October 2015-December 2015, Instructor: Katsuhiko Hayashi
    • National Institute of Information and Communications Technology, Japan (NICT)
      • August 2014-March 2015, Instructor: Taro Watanabe
      • July 2013-September 2013, Instructor: Taro Watanabe

Publications (Refereed)

Journal

    • Hidetaka Kamigaito, Taro Watanabe, Hiroya Takamura, Manabu Okumura and Eiichiro Sumita. 2017. "Hierarchical Back-off Modeling of Hiero Grammar based on Non-parametric Bayesian Model" Journal of Information Processing Vol. 25 October 2017. pp.912-923 [paper:bib]
    • Hidetaka Kamigaito, Akihiro Tamura, Hiroya Takamura, Manabu Okumura and Eiichiro Sumita. 2017. "Unsupervised Word Alignment by Agreement Under ITG Constraint." Journal of Information Processing Vol. 25 August 2017. pp.831-840 [paper:bib]
    • Hidetaka Kamigaito, Taro Watanabe, Hiroya Takamura, Manabu Okumura and Eiichiro Sumita. 2016. "Unsupervised Word Alignment Using Frequency Constraint in Posterior Regularized EM." Journal of Natural Language Processing Vol.23 No.4 September 2016. [paper:bib]
    • Yousuke Watanabe, Hidetaka Kamigaito, Haruo Yokota. 2013. "Similarity search for office XML documents based on style and structure data." International Journal of Web Information Systems 9.2 (2013): pp.100-116. [paper:bib]

Conference

    • Tsutomu Hirao, Hidetaka Kamigaito and Masaaki Nagata "Automatic Pyramid Evaluation Exploiting EDU-based Extractive Reference Summaries", In Proceedings of the 2018 Conference on Empirical Methods in Natural Language Processing (EMNLP 2018), long paper, pp.?-? Brussels, Belgium, October 2018.
    • Jun Suzuki, Sho Takase, Hidetaka Kamigaito, Makoto Morishita and Masaaki Nagata. 2018. "An Empirical Study of Building a Strong Baseline for Constituency Parsing", In Proceedings of the 56th Annual Meeting of the Association for Computational Linguistics (Volume 2: Short Papers) (ACL 2018), short paper, pp. 612-618, Melbourne, Australia, July 2018. [paper:bib]
    • Hidetaka Kamigaito, Katsuhiko Hayashi, Hirao Tsutomu and Masaaki Nagata. 2018. "Higher-order Syntactic Attention Network for Long Sentence Compression", In Proceedings of the 16th Annual Conference of the North American Chapter of the Association for Computational Linguistics (NAACL 2018), long paper, pp. 1716-1726, New Orleans, Los Angeles, June 2018. [paper:bib]
    • Hidetaka Kamigaito, Katsuhiko Hayashi, Hirao Tsutomu, Masaaki Nagata, Takamura and Manabu Okumura . 2017. "Supervised Attention for Sequence-to-Sequence Constituency Parsing", In Proceedings of the 8th International Joint Conference on Natural Language Processing (Volume 2: Short Papers) (IJCNLP 2017), pp. 7-12, Taipei, Taiwan, November 2017. [paper:bib]
    • Hidetaka Kamigaito, Akihiro Tamura, Hiroya Takamura, Manabu Okumura and Eiichiro Sumita. 2016. "Unsupervised Word Alignment by Agreement Under ITG Constraint", In Proceedings of the 2016 Conference on Empirical Methods in Natural Language Processing (EMNLP 2016), pp.1998-2004, Austin, Texas, November 2016. [paper:bib] [journal version:bib]
    • Hidetaka Kamigaito, Taro Watanabe, Hiroya Takamura, Manabu Okumura and Eiichiro Sumita. 2015. "Hierarchical Back-off Modeling of Hiero Grammar based on Non-parametric Bayesian Model", In Proceedings of the 2015 Conference on Empirical Methods in Natural Language Processing (EMNLP 2015), pp.1217-1227, Lisbon, Portugal, September 2015. [paper:bib] [journal version:bib]
    • Hidetaka Kamigaito, Taro Watanabe, Hiroya Takamura and Manabu Okumura. 2014. "Unsupervised Word Alignment Using Frequency Constraint in Posterior Regularized EM.", In Proceedings of the 2014 Conference on Empirical Methods in Natural Language Processing (EMNLP 2014), pp.153-158, Doha, Qatar, October 2014. [paper:bib] [journal_version:bib]
    • Yousuke Watanabe, Hidetaka Kamigaito and Haruo Yokota. 2012. "Style-based similarity search for office XML documents." In Proceedings of the 14th International Conference on Information Integration and Web-based Applications & Services. ACM, 2012. Best Paper Award [paper:bib] [journal version:bib]

Publications (Not Refereed)

Conference

    • 上垣外英剛, 林克彦, 平尾努, 永田昌明. 2018. "依存構造の連鎖を考慮したニューラル文圧縮", 言語処理学会第24回年次大会 (NLP 2018). 優秀賞
    • 上垣外英剛, 林克彦, 平尾努, 高村大也, 奥村学, 永田昌明. 2016. "Max-marginalフィルタを利用した品詞タグ付けと句構造解析の同時学習", 言語処理学会第22回年次大会 (NLP 2016).
    • 上垣外英剛, 渡辺太郎, 高村大也, 奥村学, 隅田英一郎. 2015. "階層的バックオフに基づく同期文脈自由文法の学習", 言語処理学会第21回年次大会 (NLP 2015).
    • 上垣外英剛, 渡辺太郎, 高村大也, 奥村学. 2014. "単語出現頻度を考慮した事後確率制約による単語アライメント", 言語処理学会第20回年次大会 (NLP 2014).
    • 上垣外英剛, 笹野遼平, 高村大也. 2013. "発話に対する引用表現の自動生成", 言語処理学会第19回年次大会 (NLP 2013).
    • 上垣外英剛, 渡辺陽介, 横田治夫. 2012. "Office XML 文書の部分木に着目した類似スタイルのファイル検索.", 第 4 回データ工学と情報マネジメントに関するフォーラム (DEIM2012).