Kazuma Kobayashi

Project Associate Professor, NII, Tokyo Institute of Technology

Senior staff scientist, National Cancer Center Research Institute

Joined

May 2022

Names

Kazuma Kobayashi (Preferred)

Emails

****@ncc.go.jp (Confirmed)

****@nii.ac.jp (Confirmed)

Personal Links

Google Scholar

Career & Education History

Project Associate Professor

NII, Tokyo Institute of Technology (nii.ac.jp)

2025 – Present

Senior staff scientist

National Cancer Center Research Institute (ncc.go.jp)

2024 – Present

Staff scientist

National Cancer Center Research Institute (ncc.go.jp)

2021 – 2024

PhD student

Tokyo Medical and Dental University (tmd.ac.jp)

2018 – 2021

Advisors, Relations & Conflicts

PhD Advisor

Ryuji Hamamoto

2018 – 2021

Expertise

Medical image analysis

2018 – Present

Radiation oncology

2013 – Present

Publications

Med-CoReasoner: Reducing Language Disparities in Medical Reasoning via Language-Informed Co-Reasoning
Fan Gao, Sherry T. Tong, Jiwoong Sohn, Jiahao Huang, Junfeng Jiang, Ding Xia, Piyalitt Ittichaiwong, Kanyakorn Veerakanjana, Hyunjae Kim, Qingyu Chen, Edison Marrese-Taylor, Kazuma Kobayashi, Akkiko Aizawa, Irene Li
- CoRR 2026
- Readers: Everyone
Leveraging High-Resource English Corpora for Cross-lingual Domain Adaptation in Low-Resource Japanese Medicine via Continued Pre-training
Kazuma Kobayashi, Zhen Wan, Fei Cheng, Tsuta Yuma, Xin Zhao, Junfeng Jiang, Jiahao Huang, Zhiyi Huang, Yusuke Oda, Rio Yokota, Yuki Arase, Daisuke Kawahara, Akiko Aizawa, Sadao Kurohashi
- EMNLP (Findings) 2025
- Readers: Everyone
A New Benchmark: Clinical Uncertainty and Severity Aware Labeled Chest X-Ray Images With Multi-Relationship Graph Learning
Mengliang Zhang, Xinyue Hu, Lin Gu, Liangchen Liu, Kazuma Kobayashi, Tatsuya Harada, Yan Yan, Ronald M. Summers, Yingying Zhu
- IEEE Trans. Medical Imaging 2025
- Readers: Everyone
Comparison of Vision Transformers and Convolutional Neural Networks in Medical Image Analysis: A Systematic Review
Satoshi Takahashi, Yusuke Sakaguchi, Nobuji Kouno, Ken Takasawa, Kenichi Ishizu, Yu Akagi, Rina Aoyama, Naoki Teraya, Amina Bolatkan, Norio Shinkai, Hidenori Machino, Kazuma Kobayashi, Ken Asada, Masaaki Komatsu, Syuzo Kaneko, Masashi Sugiyama, Ryuji Hamamoto
- J. Medical Syst. 2024
- Readers: Everyone
Sketch-based semantic retrieval of medical images
Kazuma Kobayashi, Lin Gu, Ryuichiro Hataya, Takaaki Mizuno, Mototaka Miyake, Hirokazu Watanabe, Masamichi Takahashi, Yasuyuki Takamizawa, Yukihiro Yoshida, Satoshi Nakamura, Nobuji Kouno, Amina Bolatkan, Yusuke Kurose, Tatsuya Harada, Ryuji Hamamoto
- Published: 01 Jan 2024, Last Modified: 23 Jan 2024
- Medical Image Anal. 2024
- Readers: Everyone
Can physician judgment enhance model trustworthiness? A case study on predicting pathological lymph nodes in rectal cancer
Kazuma Kobayashi, Yasuyuki Takamizawa, Mototaka Miyake, Sono Ito, Lin Gu, Tatsuya Nakatsuka, Yu Akagi, Tatsuya Harada, Yukihide Kanemitsu, Ryuji Hamamoto
- Artif. Intell. Medicine 2024
- Readers: Everyone
Interpretable medical image Visual Question Answering via multi-modal relationship graph learning
Xinyue Hu, Lin Gu, Kazuma Kobayashi, Liangchen Liu, Mengliang Zhang, Tatsuya Harada, Ronald M. Summers, Yingying Zhu
- Medical Image Anal. 2024
- Readers: Everyone
Sketch-based Medical Image Retrieval
Kazuma Kobayashi, Lin Gu, Ryuichiro Hataya, Takaaki Mizuno, Mototaka Miyake, Hirokazu Watanabe, Masamichi Takahashi, Yasuyuki Takamizawa, Yukihiro Yoshida, Satoshi Nakamura, Nobuji Kouno, Amina Bolatkan, Yusuke Kurose, Tatsuya Harada, Ryuji Hamamoto
- Published: 01 Jan 2023, Last Modified: 01 Oct 2023
- CoRR 2023
- Readers: Everyone
Expert Knowledge-Aware Image Difference Graph Representation Learning for Difference-Aware Medical Visual Question Answering
Xinyue Hu, Lin Gu, Qiyuan An, Mengliang Zhang, Liangchen Liu, Kazuma Kobayashi, Tatsuya Harada, Ronald M. Summers, Yingying Zhu
- Published: 01 Jan 2023, Last Modified: 03 Oct 2023
- CoRR 2023
- Readers: Everyone
Interpretable Medical Image Visual Question Answering via Multi-Modal Relationship Graph Learning
Xinyue Hu, Lin Gu, Kazuma Kobayashi, Qiyuan An, Qingyu Chen, Zhiyong Lu, Chang Su, Tatsuya Harada, Yingying Zhu
- Published: 01 Jan 2023, Last Modified: 03 Oct 2023
- CoRR 2023
- Readers: Everyone

View all 19 publications

Co-Authors

Akiko Aizawa
Akiko Nakagawa
Akira Sakai
Akkiko Aizawa
Amina Bolatkan
Chang Su
Daisuke Kawahara
Ding Xia
Edison Marrese-Taylor
Fan Gao
Fei Cheng
Hidenori Machino
Hirokazu Kameoka
Hirokazu Watanabe
Hiroki Yoshimura
Hyunjae Kim
Irene Li
Jiahao Huang
Jiwoong Sohn
Jun Itami
Junfeng Jiang
Kanyakorn Veerakanjana
Ken Asada
Ken Takasawa
Kenichi Ishizu

View all 72 co-authors