Taku Hasegawa

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  • E-mail: taku.hasegawa [at] ntt.com

  • About

    I am a Research Engineer at NTT (Human Informatics Laboratories, Japan) since 2019.
    My research interests include neural networks, optimization, vision and language models, and meta-learning.

Brief CV

  • Jan. 2019 – Present: Researcher, NTT Corporation, Japan
  • Apr. 2018 – Dec. 2018: Postdoctoral Fellow (PD), Japan Society for the Promotion of Science (JSPS)
  • Apr. 2016 – Mar. 2018: Ph.D. student, Graduate School of Engineering, Osaka Prefecture University
  • Apr. 2014 – Mar. 2016: M.S. student, Graduate School of Engineering, Osaka Prefecture University
  • Apr. 2011 – Mar. 2014: Undergraduate studies, Osaka Prefecture University (Early graduation)

Publications

Recent Publications

Portable Reward Tuning: Towards Reusable Fine-Tuning across Different Pretrained Models
Daiki Chijiwa, Taku Hasegawa, Kyosuke Nishida, Kuniko Saito, Susumu Takeuchi.
International Conference on Machine Learning (ICML), 2025.

Wavelet-based Positional Representation for Long Context
Yui Oka, Taku Hasegawa, Kyosuke Nishida, Kuniko Saito.
International Conference on Learning Representations (ICLR), 2025.

VDocRAG: Retrieval-Augmented Generation over Visually‑Rich Documents
Ryota Tanaka, Taichi Iki, Taku Hasegawa, Kyosuke Nishida, Kuniko Saito, Jun Suzuki.
IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), 2025.

DueT: Image‑Text Contrastive Transfer Learning with Dual‑adapter Tuning
Taku Hasegawa, Kyosuke Nishida, Koki Maeda, Kuniko Saito. Empirical Methods in Natural Language Processing (EMNLP), 2023.

SlideVQA: A Dataset for Document Visual Question Answering on Multiple Images
Ryota Tanaka, Kyosuke Nishida, Kosuke Nishida, Taku Hasegawa, Itsumi Saito, Kuniko Saito. Association for the Advancement of Artificial Intelligence (AAAI), 2023.

Scene‑Text Aware Image and Text Retrieval with Dual‑Encoder
Shumpei Miyawaki, Taku Hasegawa, Kyosuke Nishida, Takuma Kato, Jun Suzuki. Annual Meeting of the Association for Computational Linguistics, Student Research Workshop (ACL SRW), 2022.

For the complete list of my publications, please refer to my Google Scholar profile.