Naoki Kiyohara

Naoki Kiyohara

PhD Candidate, Imperial College London

Researcher, Canon Inc.

London, UK

I am a PhD candidate at the Department of Computing, Imperial College London, on a study-abroad programme from Canon Inc., where I am a researcher, jointly supervised by Prof. Yingzhen Li and Prof. Edward Johns. I previously earned a BSc in Physics from Tokyo University of Science under Prof. Hideaki Sakata and an MSc in Materials Science at The University of Tokyo under Prof. Satoru Nakatsuji. At Canon, I conduct R&D in machine learning and fluid–structure analysis for medical systems and semiconductor manufacturing equipment.

Research

My research focuses on building theoretically grounded deep sequence models, spanning attention mechanisms, state-space models (HiPPO, S4, Mamba), and their unification through kernel methods. I work on continuous-time modelling with ordinary/stochastic differential equations, and develop Bayesian methods for uncertainty quantification and inference. I am particularly interested in applying these principled approaches to problems in science and engineering.

Selected Publications

For a complete list, see Google Scholar.

Machine Learning

Interdomain Attention
ICLR Workshop 2026

Interdomain Attention: Beyond Token-Level Key-Value Memory

Naoki Kiyohara*, Harrison Bo Hua Zhu*, Zhuo Sun, Wenlong Chen, Samir Bhatt, Yingzhen Li

* equal contribution

NeurIPS 2025

Neural Stochastic Flows: Solver-Free Modelling and Inference for SDE Solutions

Naoki Kiyohara, Edward Johns, Yingzhen Li

Recurrent Memory for Online Interdomain Gaussian Processes
NeurIPS 2025

Recurrent Memory for Online Interdomain Gaussian Processes

Wenlong Chen*, Naoki Kiyohara*, Harrison Bo Hua Zhu*, Jacob Curran-Sebastian, Samir Bhatt, Yingzhen Li

* equal contribution

Computational Engineering

In Silico Model for Edge-to-Edge Repair
ASME 2024

An In Silico Model for Predicting the Efficacy of Edge-to-Edge Repair for Mitral Regurgitation

Junichi Ooida, Naoki Kiyohara, Hironaga Noguchi, Yuichiro Oguchi, Kohei Nagane, Takuya Sakaguchi, Gakuto Aoyama, Fumimasa Shige, James V. Chapman, Masahiko Asami, Klaus F. Kofoed, Michael H. C. Pham, Koshiro Suzuki

Nanoimprint simulation
SPIE 2022

Enabling nanoimprint simulator for quality verification; process-design co-optimization toward high volume manufacturing

J. Seki, Y. Oguchi, N. Kiyohara, K. Suzuki, K. Nagane, S. Narioka, T. Nakayama, Y. Shiode, S. Aihara, T. Asano

Condensed Matter Physics

Mn3Ge crystal structure
Phys. Rev. Applied 2016

Giant Anomalous Hall Effect in the Chiral Antiferromagnet Mn3Ge

Naoki Kiyohara, Takahiro Tomita, Satoru Nakatsuji

Mn3Sn crystal and spin structure
Nature 2015

Large anomalous Hall effect in a non-collinear antiferromagnet at room temperature

Satoru Nakatsuji, Naoki Kiyohara, Tomoya Higo

Contact

Feel free to reach out to me at: n.kiyohara23 [at] imperial [dot] ac [dot] uk