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An analysis of memory access patterns in RISC-V vector workloads on heterogeneous memory architectures
Peer-reviewed
Ryo Yokoyama, Masahito Kumagai, Kazuhiko Komatsu, Masayuki Sato, Hiroaki Kobayashi
Proceedings of the Supercomputing Asia and International Conference on High Performance Computing in Asia Pacific Region Workshops 255-262 2026/01/25
Publisher:
ACM
DOI：
10.1145/3784828.3785405
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Disaster Rescue Resource Allocation Based on the Ising Model
Peer-reviewed
Kosei Nakamoto, Masahito Kumagai, Masayuki Sato, Kazuhiko Komatsu, Hiroaki Kobayashi
2025 IEEE 18th International Symposium on Embedded Multicore/Many-core Systems-on-Chip (MCSoC) 274-281 2025/12/15
Publisher:
IEEE
DOI：
10.1109/mcsoc67473.2025.00052
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Classification of Three-dimensional Electron Diffraction Data with a Large Language Model
Peer-reviewed
Kazuyuki Yasuda, Masahito Kumagai, Masayuki Sato, Kazuhiko Komatsu, Hiroaki Kobayashi
Proceedings of the SC '25 Workshops of the International Conference for High Performance Computing, Networking, Storage and Analysis 96-103 2025/11/15
Publisher:
ACM
DOI：
10.1145/3731599.3767351
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Single photon coherent Ising machines for constrained optimization problems
Peer-reviewed
Masahito Kumagai, Yoshitaka Inui, Edwin Ng, Satoshi Kako, Kazuhiko Komatsu, Hiroaki Kobayashi, Yoshihisa Yamamoto
Quantum Science and Technology 2025/10/01
DOI：
10.1088/2058-9565/addde5
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DETECTION OF FLOW SEPARATION USING ISING-BASED CLUSTERING
Peer-reviewed
Kazuhiko Komatsu, Neda Ebrahimi Pour, Masahito Kumagai, Frank Dressel, Hiroaki Kobayashi, Kathrin Stahl, Alexandre Suryadi, Michaela Herr
German Aerospace Congress 2025 (DLRK2025) 2025/09/24
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A Compressed QUBO Format for Traveling Salesperson Problems
Chu-Yuan Huang, Kazuhiko Komatsu, Makoto Onoda, Masahito Kumagai, Masayuki Sato, Hiroaki Kobayashi
2025 IEEE International Parallel and Distributed Processing Symposium Workshops (IPDPSW) 287-296 2025/06/03
Publisher:
IEEE
DOI：
10.1109/ipdpsw66978.2025.00053
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An Ising-based Decision Method for Intra Prediction Mode in Video Coding
Peer-reviewed
Takuto Momominami, Naoya Niwa, Masahito Kumagai, Kazuhiko Komatsu, Hiroaki Kobayashi, Hiroe Iwasaki
SC24-W: Workshops of the International Conference for High Performance Computing, Networking, Storage and Analysis 1748-1754 2024/11/17
Publisher:
IEEE
DOI：
10.1109/scw63240.2024.00218
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Combinatorial clustering with a coherent XY machine
Peer-reviewed
Kyungduk Kim, Masahito Kumagai, Yoshihisa Yamamoto
Optics Express 32 (19) 33737-33757 2024/09/09
DOI：
10.1364/OE.526050
eISSN：
1094-4087
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Performance Evaluation of Tsunami Evacuation Route Planning on Multiple Annealing Machines
Peer-reviewed
Yihui Liu, Kazuhiko Komatsu, Masahito Kumagai, Masayuki Sato, Hiroaki Kobayashi
Proceedings of the 20th ACM International Conference on Computing Frontiers 2023, CF 2023 185-188 2023/05/09
DOI：
10.1145/3587135.3592193
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Ising-Based Kernel Clustering †
Peer-reviewed
Masahito Kumagai, Kazuhiko Komatsu, Masayuki Sato, Hiroaki Kobayashi
Algorithms 16 (4) 2023/04
DOI：
10.3390/a16040214
eISSN：
1999-4893
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Analysis of Precision Vectors for Ising-Based Linear Regression
Peer-reviewed
Kaho Aoyama, Kazuhiko Komatsu, Masahito Kumagai, Hiroaki Kobayashi
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) 13798 LNCS 251-261 2023
DOI：
10.1007/978-3-031-29927-8_20
ISSN：
0302-9743
eISSN：
1611-3349
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Investigating the Characteristics of Ising Machines
Peer-reviewed
Kazuhiko Komatsu, Makoto Onoda, Masahito Kumagai, Hiroaki Kobayashi
Proceedings - 2023 IEEE International Conference on Quantum Computing and Engineering, QCE 2023 1 939-948 2023
DOI：
10.1109/QCE57702.2023.00108
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A Constraint Partition Method for Combinatorial Optimization Problems
Peer-reviewed
Makoto Onoda, Kazuhiko Komatsu, Masahito Kumagai, Masayuki Sato, Hiroaki Kobayashi
Proceedings - 2023 16th IEEE International Symposium on Embedded Multicore/Many-Core Systems-on-Chip, MCSoC 2023 600-607 2023
DOI：
10.1109/MCSoC60832.2023.00093
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Prediction of turbine blade condition using supervised machine learning trained by digital-twin simulation
Peer-reviewed
Issei Fukamizu, Kazuhiko Komatsu, Masahito Kumagai, Hironori Miyazawa, Takashi Furusawa, Satoru Yamamoto
International Conference on Parallel Computational Fluid Dynamics 2022 2022/05
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An External Definition of the One-Hot Constraint and Fast QUBO Generation for High-Performance Combinatorial Clustering
Peer-reviewed
Masahito Kumagai, Kazuhiko Komatsu, Fumiyo Takano, Takuya Araki, Masayuki Sato, Hiroaki Kobayashi
International Journal of Networking and Computing 11 (2) 463-491 2021
Publisher:
IJNC Editorial Committee
DOI：
10.15803/ijnc.11.2_463
ISSN：
2185-2839
eISSN：
2185-2847
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An Externally-Constrained Ising Clustering Method for Material Informatics
Peer-reviewed
Kazuhiko Komatsu, Masahito Kumagai, Ji Qi, Masayuki Sato, Hiroaki Kobayashi
Proceedings - 2021 9th International Symposium on Computing and Networking Workshops, CANDARW 2021 201-204 2021
DOI：
10.1109/CANDARW53999.2021.00040
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Ising-Based Combinatorial Clustering Using the Kernel Method
Peer-reviewed
Masahito Kumagai, Kazuhiko Komatsu, Masayuki Sato, Hiroaki Kobayashi
Proceedings - 2021 IEEE 14th International Symposium on Embedded Multicore/Many-Core Systems-on-Chip, MCSoC 2021 197-203 2021
DOI：
10.1109/MCSoC51149.2021.00037
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Combinatorial clustering based on an externally-defined one-hot constraint
Peer-reviewed
Masahito Kumagai, Kazuhiko Komatsu, Fumiyo Takano, Takuya Araki, Masayuki Sato, Hiroaki Kobayashi
Proceedings - 2020 8th International Symposium on Computing and Networking, CANDAR 2020 59-68 2020/11
DOI：
10.1109/CANDAR51075.2020.00015
https://orcid.org/0000-0002-0903-064X