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Hi, I am Hayate Kojima

Hayate Kojima

Ph.D. Student at The University of Osaka

Hayate Kojima received the B.E. and M.E. degrees in electrical engineering and computer science from the Tokyo University of Agriculture and Technology, Tokyo, Japan, in 2023 and 2025, respectively. He is currently working toward the Ph.D. degree at the Graduate School of Engineering, the University of Osaka, Osaka, Japan.

Since 2025, he has been a Research Fellow (DC1) of the Japan Society for the Promotion of Science (JSPS). His research interests include graph signal processing, machine learning for signal processing, and interpretable deep learning.

Contacts:
Skills:
Awards:
  • IEEE SPS Tokyo Joint Chapter Student Award, 2025
  • IEEE SPS Japan Student Conference Paper Award, 2024
  • Institute of Electronics, Information and Communication Engineers, Technical Committee on Image Engineering, IE Special Award, 2024
Grants:
  • Japan Society for the Promotion of Science (JSPS) Research Fellowship for Young Scientists (DC1), 2025
  • JASSO scholarship Refund Exemption for Excellent Students, 2025
Qualifications:
  • Fundamental Information Technology Engineer Examination (in Japan), 2021
  • CG-ARTS CG Engineer Certification Test (in Japan), 2020

Education

Graduate School of Engineering, The University of Osaka
2025 - Present
Ph.D student
Graduate School of Engineering, Tokyo University of Agriculture and Technology
2023 - 2025
Master of Engineering
Dept. of Electrical Engineering and Computer Science, Tokyo University of Agriculture and Technology
2019 - 2023
Bachelor of Engineering

Featured Posts

Publications

Algorithm Unrolling-based Denoising of Multimodal Graph Signals
H. Kojima* K. Takanami* J. Hara Y. Bandoh S. Takamura H. Higashi Y. Tanaka (*: equal contribution)
Graph Signal Denoising Using Regularization by Denoising and Its Parameter Estimation
H. Kojima H. Higashi Y. Tanaka
深層展開の学習パラメータのパラメータ化およびその収束に関する一検討
中谷光佑 小島颯 田中雄一
深層展開の頑健性向上のための学習パラメータ調整
小島颯 中谷光佑 原惇也 東広志 田中雄一
GSP Japan-Traffic Dataset: 実測道路交通量に基づく時系列グラフ信号データセット
熊谷塁 小島颯 原惇也 東広志 田中雄一
ノード数が変化する時変グラフに対するクラスタリング
赤林知哉 小島颯 原惇也 東広志 田中雄一
Regularization by Denoising を用いたグラフ信号のノイズ除去とその信号処理的解釈
小島颯 東広志 田中雄一
頂点特徴量を利用した非局所的マルチスケールグラフの構築
金子玲菜 原惇也 柳谷健太 小島颯 東広志 田中雄一
Multiscale graph construction using non-local cluster features
R. Kaneko H. Kojima K. Yanagiya J. Hara H. Higashi Y. Tanaka
Interpretable Graph Signal Denoising Using Regularization by Denoising
H. Kojima H. Higashi Y. Tanaka
GSP-Traffic Dataset: Graph Signal Processing Dataset Based on Traffic Simulation
R. Kumagai H. Kojima H. Higashi Y. Tanaka
GSP-Traffic Dataset: グラフ上データ解析のための交通流シミュレーションに基づくデータセット
熊谷塁 小島颯 東広志 田中雄一
深層展開を利用した多モーダルグラフ信号のグラフ学習を伴うノイズ除去
高波圭吾 小島颯 原惇也 坂東幸浩 高村誠之 東広志 田中雄一
Human Pose Refinement Using Line Graphs
H. Kojima Y. Tanaka
Graph-RED: Regularization by Denoising を用いたグラフ信号のノイズ除去
小島颯 東広志 田中雄一
ライングラフを用いた人体ポーズデータの修復
小島颯 田中雄一
Restoration of Time-Varying Graph Signals using Deep Algorithm Unrolling
H. Kojima H. Noguchi K. Yamada Y. Tanaka
深層展開を用いた時変グラフ信号の再構成
小島颯 山田宏樹 野口ひかり 田中雄一
Interactive Cultivation System for the Future IoT-Based Agriculture
K. Veloo H. Kojima S. Takata M. Nakamura H. Nakajo
家庭菜園におけるインタラクティブ栽培センシングシステムの実現
小島颯 高田勝悟 Kesevan Veloo 仲村将司 中條拓伯

Experiences

1
The Japan Society for the Promotion of Science (JSPS)

Apr 2025 - Present

Osaka, Japan

JSPS Doctoral Course Research Fellowship (DC1) @ The University of Osaka

Apr 2025 - Present


** (not open to the public)

Oct 2023 - Mar 2025

Online

Programming Teacher (part-time)

Oct 2023 - Mar 2025

Responsibilities:
  • I teach Unity, Python, etc. to high school students.
2

3
Osaka University

Aug 2021 - Feb 2023

Osaka, Japan

Specially appointed research fellow (part-time)

Aug 2021 - Feb 2023

Responsibilities:
  • I engaged in research on graph signal processing.

BonBon,Inc.

Oct 2020 - Nov 2021

Kyoto, Japan

Data-scientist (intern)

Oct 2020 - Nov 2021

Responsibilities:
  • I worked mainly on medical diagnostic assistance software for medical imaging.
4

5
ELOOP,Inc.

Oct 2019 - Mar 2020

Tokyo, Japan

Programmer (intern)

Oct 2019 - Mar 2020

Responsibilities:
  • I developed the programming learning site “ELOOP”.