Journal Articles

Peer-reviewed journal articles listed by year.

2025

  1. Kota Iura, Yuki Saito, Shinnosuke Takamichi, Graham Neubig, Katsuhito Sudoh, Hiroshi Saruwatari, Hiroya Takamura, Tatsuya Ishigaki, Excitement-Inducing Commentary Text-to-Speech System for Fighting Game Video Scenes, IEEE Access, Vol. 13, pp. 216748–216758, 2025 [link]
  2. Kosuke Doi, Katsuhito Sudoh, Satoshi Nakamura, Taro Watanabe, Enhancing Automated Essay Scoring with Grammatical Features using Multi-task Learning and Item Response Theory, Journal of Natural Language Processing, Vol. 32, No. 2, pp. 438–479, 2025 [link]
  3. Yuka Ko, Ryo Fukuda, Yuta Nishikawa, Yasumasa Kano, Katsuhito Sudoh, Sakriani Sakti, Satoshi Nakamura, End-to-end Simultaneous Speech Translation with Style Tags using Human Simultaneous Interpretation Data, Journal of Natural Language Processing, Vol. 32, No. 2, pp. 404–437, 2025 [link]
  4. Ryuta Ishikawa, Yasumasa Kano, Katsuhito Sudoh, Satoshi Nakamura, Divide-and-Conquer Neural Machine Translation Using Intra-Sentence Context, Journal of Natural Language Processing, Vol. 32, No. 1, pp. 114–133, 2025 (in Japanese) [link]

2024

  1. Yuka Ko, Katsuhito Sudoh, Sakriani Sakti, Satoshi Nakamura, Neural End-To-End Speech Translation Leveraged by ASR Posterior Distribution, IEICE Transactions on Information and Systems, Vol. E107.D, No. 10, pp. 1322–1331, 2024 (in Japanese) [link]
  2. Yasumasa Kano, Katsuhito Sudoh, Satoshi Nakamura, Average Token Delay: A Duration-aware Latency Metric for Simultaneous Translation, Journal of Natural Language Processing, Vol. 31, No. 3, pp. 1049–1075, 2024 [link]
  3. Kosuke Doi, Katsuhito Sudoh, Satoshi Nakamura, NAIST Simultaneous Interpretation Corpus: Development and Analyses of Data from Interpreters of Different Levels, Journal of Natural Language Processing, Vol. 31, No. 3, pp. 868–893, 2024 [link]
  4. Yasumasa Kano, Katsuhito Sudoh, Satoshi Nakamura, Prefix Alignment for Training Simultaneous Machine Translation, Journal of Natural Language Processing, Vol. 31, No. 1, pp. 79–104, 2024 [link]
  5. Ryo Fukuda, Katsuhito Sudoh, Satoshi Nakamura, Improving Speech Translation Accuracy and Time Efficiency With Fine-Tuned wav2vec 2.0-Based Speech Segmentation, IEEE/ACM Transactions on Audio, Speech, and Language Processing, Vol. 32, pp. 906–916, 2024 [link]

2023

  1. Shohei Tanaka, Koichiro Yoshino, Katsuhito Sudoh, Satoshi Nakamura, Reflective action selection based on positive-unlabeled learning and causality detection model, Computer Speech and Language, Vol. 78, pp. 101463–101463, 2023 [link]
  2. Keisuke Toyama, Katsuhito Sudoh, Satoshi Nakamura, Content Order-Controllable MR-to-Text, IEEE Access, Vol. 11, pp. 129353–129365, 2023 [link]

2022

  1. Ryo Fukuda, Katsuhito Sudoh, Satoshi Nakamura, Knowledge Distillation for Translating Erroneous Speech Transcriptions, Journal of Natural Language Processing, Vol. 29, No. 2, pp. 344–366, 2022 [link]
  2. Kosuke Takahashi, Katsuhito Sudoh, Satoshi Nakamura, Automatic Machine Translation Evaluation using a Source and Reference Sentence with a Cross-lingual Language Model, Journal of Natural Language Processing, Vol. 29, No. 1, pp. 3–22, 2022
  3. Yoichi Ishibashi, Sho Yokoi, Katsuhito Sudoh, Satoshi Nakamura, Subspace-based Set Operations on a Pre-trained Word Embedding Space, CoRR, Vol. abs/2210.13034, 2022 [link]

2021

  1. Hour Kaing, Chenchen Ding, Masao Utiyama, Eiichiro Sumita, Sethserey Sam, Sopheap Seng, Katsuhito Sudoh, Satoshi Nakamura, Towards Tokenization and Part-of-Speech Tagging for Khmer: Data and Discussion, ACM Transactions on Asian and Low-Resource Language Information Processing, Vol. 20, No. 6, 2021 [link]
  2. Hour Kaing, Chenchen Ding, Masao Utiyama, Eiichiro Sumita, Katsuhito Sudoh, Satoshi Nakamura, Constituency Parsing by Cross-Lingual Delexicalization, IEEE Access, Vol. 9, pp. 141571–141578, 2021 [link]
  3. Yui Oka, Katsuhito Sudoh, Satoshi Nakamura, Length-constrained Neural Machine Translation using Length Prediction and Perturbation into Length-aware Positional Encoding, Journal of Natural Language Processing, Vol. 28, No. 3, pp. 778–801, 2021 [link]
  4. Haruko Yagura, Hiroki Tanaka, Taiki Kinoshita, Hiroki Watanabe, Shunnosuke Motomura, Katsuhito Sudoh, Satoshi Nakamura, Selective Attention Measurement of Experienced Simultaneous Interpreters Using EEG Phase-Locked Response, Frontiers in Human Neuroscience, Vol. 15, 2021 [link]
  5. Yoichi Ishibashi, Katsuhito Sudoh, Koichiro Yoshino, Satoshi Nakamura, Reflection-based Word Attribute Transfer, Journal of Natural Language Processing, Vol. 28, No. 1, pp. 206–234, 2021 (in Japanese)
  6. Ander Martinez, Katsuhito Sudoh, Yuji Matsumoto, Sub-Subword N-Gram Features for Subword-Level Neural Machine Translation, Journal of Natural Language Processing, Vol. 28, No. 1, pp. 82–103, 2021
  7. Shohei Tanaka, Koichiro Yoshino, Katsuhito Sudoh, Satoshi Nakamura, Relationship Between Coherency of Sequential Events and Dialogue Continuity on Conversational Response, Natural Language Processing, Vol. 28, No. 1, pp. 26–59, 2021 (in Japanese)

2020

  1. Johanes Effendi, Sakriani Sakti, Katsuhito Sudoh, Satoshi Nakamura, Leveraging neural caption translation with visually grounded paraphrase augmentation, IEICE Transactions on Information and Systems, Vol. E103D, No. 3, pp. 674–683, 2020 [link]

2019

  1. Yuta Nishimura, Katsuhito Sudoh, Graham Neubig, Satoshi Nakamura, Multi-Source Neural Machine Translation With Missing Data, IEEE/ACM Transaction on Audio, Speech, and Language Processing, Vol. 28, pp. 569–580, 2019 [link]
  2. 星野 翔, 宮尾 祐介, 須藤 克仁, 林 克彦, 永田 昌明, 統計的機械翻訳のための統語に基づく単純な事前並べ替え手法, 情報処理学会論文誌, Vol. 60, No. 3, pp. 890–902, 2019 (in Japanese)

2017

  1. Xun Wang, Katsuhito Sudoh, Masaaki Nagata, Tomohide Shibata, Daisuke Kawahara, Sadao Kurohashi, Learning to Answer Questions by Understanding Using Entity-Based Memory Network, Computacion y Sistemas, Vol. 21, No. 4, 2017 [link]

2015

  1. Xun Wang, Yasuhisa Yoshida, Tsutomu Hirao, Katsuhito Sudoh, Masaaki Nagata, Summarization based on task-oriented discourse parsing, IEEE/ACM Transactions on Audio Speech and Language Processing, Vol. 23, No. 8, pp. 1358–1367, 2015 [link]

2014

  1. Katsuhito Sudoh, Shinsuke Mori, Masaaki Nagata, Noise-aware Character Alignment for Extracting Transliteration Fragments, Journal of Natural Language Processing, Vol. 21, No. 6, pp. 1107–1131, 2014
  2. 林 克彦, 須藤 克仁, 塚田 元, 鈴木 潤, 永田 昌明, 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, 自然言語処理, Vol. 21, No. 5, pp. 1037–1057, 2014 (in Japanese)
  3. Dan Han, Pascual Martinez-Gómez, Yusuke Miyao, Katsuhito Sudoh, Masaaki Nagata, Unlabeled Dependency Parsing Based Pre-reordering for Chinese-to-Japanese SMT, Journal of Natural Language Processing, Vol. 21, No. 3, pp. 485–514, 2014
  4. Hirao Tsutomu, Isozaki Hideki, Sudoh Katsuhito, Duh Kevin, Tsukada Hajime, Nagata Masaaki, Evaluating Translation Quality with Word Order Correlations, Journal of Natural Language Processing, Vol. 21, No. 3, pp. 421–444, 2014 (in Japanese) [link]

2013

  1. Katsuhito Sudoh, Xianchao Wu, Kevin Duh, Hajime Tsukada, Masaaki Nagata, Syntax-based post-ordering for efficient Japanese-to-English translation, ACM Transactions on Asian Language Information Processing, Vol. 12, No. 3, 2013 [link]

2012

  1. Hideki Isozaki, Katsuhito Sudoh, Hajime Tsukada, Kevin Duh, HPSG-based preprocessing for english-to-Japanese translation, ACM Transactions on Asian Language Information Processing, Vol. 11, No. 3, 2012 [link]

2009

  1. Katsuhito Sudoh, Hajime Tsukada, Hideki Isozaki, Named entity recognition from speech using discriminative models and speech recognition confidence, Journal of Information Processing, Vol. 17, pp. 72–81, 2009 [link]

2006

  1. Ryuichiro Higashinaka, Katsuhito Sudoh, Mikio Nakano, Incorporating discourse features into confidence scoring of intention recognition results in spoken dialogue systems, Speech Communication, Vol. 48, No. 3-4, pp. 417–436, 2006 [link]

2005

  1. Katsuhito Sudoh, Mikio Nakano, Post-dialogue confidence scoring for unsupervised statistical language model training, Speech Communication, Vol. 45, No. 4, pp. 387–400, 2005 [link]

2002

  1. 須藤 克仁, 角所 考, 美濃導彦, 現実物体の観測に基づく線状柔軟物体の操作時の形状のモデル化, 情報処理学会論文誌, Vol. 43, No. 12, pp. 3632–3642, 2002 (in Japanese)