About Me

Katsuhito Sudoh, Ph. D.
Associate Professor


Visiting Researcher

8916-5 Takayama-cho, Ikoma, Nara 630-0192, Japan
mailto: ${surname} {0x40} is.naist.jp

Research Topics

Machine Translation, Natural Language Processing, Spoken Language Processing


  • Ph. D. in Informatics, Kyoto University (2015)
        Supervisor: Prof. Tatsuya Kawahara
  • Master of Informatics, Kyoto University (2002)
        Master Thesis: Virtualizing Reaction of One-Dimensional Deformable Objects from Real Observation (実計測に基づく1次元柔軟物体のふるまいの仮想化) 
        Supervisor: Prof. Michihiko Minoh
  • Bachelor of Engineering, Kyoto University (2000)
        Bachelor Thesis: Shape Modeling of String-like Flexible Object from Real Observation for its Manipulation in Virtual World (仮想世界でのひも操作のための実観測に基づく形状のモデル化)
        Supervisor: Prof. Michihiko Minoh

Work Experiences

  • Apr. 2017 -: Associate Professor at NAIST
  • Oct. 2018 -: Researcher of JST PRESTO
  • May 2018 -: Visiting Researcher at RIKEN AIP (Tourism Information Analytics Team)
  • Apr. 2002 - Mar. 2017: Communication Science Laboratories, Nippon Telegraph and Telephone Corporation (NTT)

Academic Activities

  • Apr. 2016 -: Vice Chairperson, AAMT/Japio Special Interest Group on Patent Translation (Apr. 2012-: Committee member)
  • Jun. 2018 - Mar. 2020: Editor, IPSJ Journal & Journal of Information Processing (JIP), Information Processing Society of Japan (IPSJ)
  • Sep. 2014 - Sep. 2018: Editor, Journal of Natural Language Processing (JNLP)
  • Dec. 2017: Evaluation co-chair, The 14th International Workshop on Spoken Language Translation (IWSLT 2017)
  • Sep. 2017: Workshop co-organizer, The 7th Workshop on Patent and Scientific Literature Translation (PSLT 2017)
  • Oct. 2015: Workshop co-organizer, The 6th Workshop on Patent and Scientific Literature Translation (PSLT 2015)
  • Reviewer: IEEE/ACM Transactions on TASLP, ACM Transactions on TALLIP, Computer Speech and Language, IPSJ Journal, IEICE Transactions, Journal of Natural Language Processing, Transactions of JSAI, ACL (2015-2017), EACL (2017), EMNLP (2015-2016, 2018), COLING (2016, 2018), WMT (2015-), IJCNLP (2015, 2017)


  • 2019: Data Science II, Graduate School of Science and Technology, NAIST (1 session out of 8)
  • 2018-2019: Machine Learning, Graduate School of Science and Technology, NAIST (2 sessions out of 8)
  • 2017-2019: Sequential Data Modeling, Graduate School of Science and Technology, NAIST (4 sessions out of 8)
  • 2016: Machine Translation (翻訳解析), Faculty of Culture and Information Science, Doshisha University (15 sessions, in Japanese)
  • 2015-2016: Speech Information Processing (音声情報処理), Faculty of Informatics, Kansai University (3 sessions out of 15, in Japanese)


  • Oct. 2018: Best Student Paper Award in IWSLT 2018, "Multi-Source Neural Machine Translation with Data Augmentation" [co-authored]
  • Mar. 2015: Outstanding Paper Award of Journal of Natural Language Processing, "Incremental Word Re-Ordering and Article Generation: Its Application to Japanese-to-English Machine Translation (In Japanese: 単語並べ替えと冠詞生成の同時逐次処理:日英機械翻訳への適用) [co-authored]
  • Mar. 2012: Outstanding Presentation Award in Annual Meeting of the Association of Natural Language Processing, "RIBES: 順位相関に基づく翻訳の自動評価法" [co-authored]
  • Nov. 2011: Best Paper Finalist in IJCNLP 2011, "Extracting Pre-ordering Rules from Predicate Argument Structures" [co-authored]
  • Jul. 2006: AFNLP Meritorious Asian NLP Paper Award in COLING/ACL 2006, "Incorporating Speech Recognition Confidence into Discriminative Named Entity Recognition of Speech Data"