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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| IMQ | 2024-12-20 14:00 |
Ishikawa | (Ishikawa) | Devising a novel evaluation method for computed tomography images containing metal artifacts
-- Application to virtual monochromatic imaging Energy Optimization -- Shigetoshi Kitaguchi (Nagoya Univ./Kindai Univ. Hosp.), Kuniharu Imai (Nagoya Univ.), Naomi Hashimoto (Kindai Univ. Hosp.), Keisuke Fujii, Chiyo Yamauchi-Kawaura (Nagoya Univ.), Yuki Kono, Hidekazu Nambu (Kindai Univ. Hosp.)  IMQ2024-8 |
Metal artifacts on CT images reduce diagnostic performance. Metal artifact reduction (MAR) technology cannot fully elimi... [more] | IMQ2024-8 pp.1-6 |
| IMQ | 2024-12-20 14:25 |
Ishikawa | (Ishikawa) | Evaluation of Sharpness of CT Image Using Blur Function on the basis of Stochastic Differential Equation
-- The effect of focal spot size of X-ray tube -- Kengo Igarashi, Keisuke Fujii, Chiyo Kawaura, Kuniharu Imai (Nagoya Univ.) IMQ2024-9 |
Contrast is the one of the important indices for evaluating CT image quality. Recently, various algorithms for reducing ... [more] | IMQ2024-9 pp.7-11 |
| QIT (2nd) |
2024-11-27 10:30 |
Kagawa | Sunport Hall Takamatsu (Kagawa) | The estimation of fidelity using linear cross-entropy benchmarking in the particle-number conserved random quantum circuits Takumi Kaneda (Osaka Univ.), Keisuke Fujii, Hiroshi Ueda (Osaka Univ./RKEN) |
[more] | |
| QIT (2nd) |
2024-11-26 13:20 |
Kagawa | Sunport Hall Takamatsu (Kagawa) | [Poster Presentation]
Scalable circuit depth reduction in feedback-based quantum optimization with a quadratic approximation Don Arai, Ken N. Okada, Yuichiro Nakano, Kosuke Mitarai (Osaka Univ.), Keisuke Fujii (Osaka Univ./RIKEN) |
Recently, a feedback-based quantum optimization algorithm has been proposed as a new quantum algorithm for solving combi... [more] | |
| IMQ, HIP | 2024-07-12 14:25 |
Hokkaido | Satellite Campus, Sapporo City University (Hokkaido) | Analysis of noise components on CT images on the basis of noise quasi-theoretical formula Keisuke Fujii, Kuniharu Imai (Nagoya Univ.), Keiichi Nomura, Yoshihisa Muramatsu (NCCHE), Yukihiro Enchi (Osaka Univ. Hosp.) IMQ2024-4 HIP2024-35 |
Image noise is one of important physical indices for evaluating the detectability of low contrast lesions. Previous stud... [more] | IMQ2024-4 HIP2024-35 pp.7-12 |
| HCS | 2024-03-02 17:05 |
Shizuoka | Tokoha University(Shizuoka-Kusanagi Campus) (Shizuoka) | [Invited Talk]
Measuring and understanding interactions via machine learning in biological multi-agent motions Keisuke Fujii (Nagoya Univ.) |
[more] | |
| QIT (2nd) |
2023-12-17 17:00 |
Okinawa | OIST (Okinawa, Online) (Primary: On-site, Secondary: Online) |
Recursive construction of quantum eigenvalue/singular-value transformation Kaoru Mizuta (UTokyo), Keisuke Fujii (Osaka Univ.) |
Quantum eigenvalue/singular-value transformation (QET/QSVT) has attracted much interest as grand uni cation of quantum ... [more] |
|
| QIT (2nd) |
2023-12-17 17:15 |
Okinawa | OIST (Okinawa, Online) (Primary: On-site, Secondary: Online) |
Quantum circuit for simulating the Schwinger model Kazuki Sakamoto, Hayata Morisaki, Junichi Haruna (Osaka Univ.), Etsuko Itou (Kyoto Univ./RIKEN), Keisuke Fujii (Osaka Univ./RIKEN), Kosuke Mitarai (Osaka Univ.) |
The Schwinger model is one of the simplest gauge theories. It is known that a topological term of the model leads to the... [more] | |
| QIT (2nd) |
2023-12-18 12:25 |
Okinawa | OIST (Okinawa, Online) (Primary: On-site, Secondary: Online) |
SantaQlaus: A resource-efficient method to leverage quantum noise for optimization of variational quantum algorithms Kosuke Ito (Osaka Univ.), Keisuke Fujii (Osaka Univ./RQC) |
[more] | |
| QIT (2nd) |
2023-12-18 15:50 |
Okinawa | OIST (Okinawa, Online) (Primary: On-site, Secondary: Online) |
Quantum Circuit Unoptimization and Its Application to Compiler Benchmark Yusei Mori (Osaka Univ.), Hideaki Hakoshima (QIQB), Kyohei Sudo (Osaka Univ.), Toshio Mori (QIQB), Kosuke Mitarai (Osaka Univ.), Keisuke Fujii (Osaka Univ./RQC) |
We initiate and construct a quantum algorithmic primitive called quantum circuit unoptimization, which makes a given qua... [more] | |
| QIT (2nd) |
2023-12-18 16:35 |
Okinawa | OIST (Okinawa, Online) (Primary: On-site, Secondary: Online) |
Comparative study of decoding the surface code using simulated annealing under depolarizing noise Yusaku Takeuchi, Yugo Takada, Tatsuya Sakashita (Osaka Univ.), Jun Fujisaki, Hirotaka Oshima, Shintaro Sato (Fujitsu Ltd.), Keisuke Fujii (Osaka Univ.) |
The Minimum Weight Perfect Matching (MWPM) method, a general decoder for surface codes, cannot achieve optimal decoding ... [more] | |
| QIT (2nd) |
2023-12-17 17:30 |
Okinawa | OIST (Okinawa, Online) (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Improving threshold for fault-tolerant color code quantum computing by flagged weight optimization Yugo Takada (Osaka Univ.), Keisuke Fujii (Osaka Univ./RIKEN) |
Color codes are promising quantum error correction (QEC) codes because they have an advantage against surface codes in t... [more] | |
| QIT (2nd) |
2023-12-17 17:30 |
Okinawa | OIST (Okinawa, Online) (Primary: On-site, Secondary: Online) |
How to Map Linear Differential Equations to Schr"{o}dinger Equations via Carleman and Koopman-von Neumann Embeddings for Quantum Algorithms Yuki Ito (Osaka Univ.), Yu Tanaka (Sony Group), Keisuke Fujii (Osaka Univ./RIKEN) |
Solving differential equations with large degrees of freedom is an important task for scientific and industrial applicat... [more] | |
| QIT (2nd) |
2023-12-17 17:30 |
Okinawa | OIST (Okinawa, Online) (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Quantum-classical hybrid algorithm to construct quantum explicit model from quantum kernel method Akimoto Nakayama, Hayata Morisaki, Kousuke Mitarai, Keisuke Fujii (Osaka Univ.) |
[more] | |
| QIT (2nd) |
2023-12-17 17:30 |
Okinawa | OIST (Okinawa, Online) (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Even more efficient magic state distillation by zero level distillation on the square lattice Tomohiro Itogawa, Yugo Takada, Yutaka Hirano, Keisuke Fujii (Osaka Univ.) |
One of the major issues facing fault-tolerant quantum computation is the large overhead of magic state distillation(MSD)... [more] | |
| QIT (2nd) |
2023-12-17 17:30 |
Okinawa | OIST (Okinawa, Online) (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Performance evaluation of decoding with concatenated surface code encoding and soft-decision decoding Yuki Ichimiya, Keisuke Fujii (Osaka Univ.) |
[more] | |
| QIT (2nd) |
2023-12-17 17:30 |
Okinawa | OIST (Okinawa, Online) (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Option Pricing Method and Performance Evaluation Using Least Squares Monte Carlo Method with Quantum Circuit Learning Yusuke Kimura, Koichi Miyamoto, Kosuke Mitarai, Keisuke Fujii (Osaka Univ.) |
[more] | |
| HCS | 2023-03-03 13:10 |
Shizuoka | Tokoha University（KusanagiCampus） (Shizuoka, Online) (Primary: On-site, Secondary: Online) |
Study on the resilient role in coordinated behavior of a triad using deep reinforcement learning and rule-based modeling Jun Ichikawa (Shizuoka Univ.), Kazushi Tsutsui, Keisuke Fujii (Nagoya Univ.) HCS2022-93 |
Group can often implement a task, which is difficult to do alone, or achieve higher performance than an individual. For ... [more] | HCS2022-93 pp.100-105 |
| IMQ | 2022-12-16 14:30 |
Chiba | Nishi-Chiba Campus, Chiba Univ. (Chiba) | New Method for Evaluating Effective Contrast Resolution of CT images Kengo Igarashi, Keisuke Fujii, Chiyo Kawaura, Shigeru Matsushima, Kuniharu Imai (Nagoya Univ.) IMQ2022-15 |
[more] | IMQ2022-15 pp.1-6 |
| QIT (2nd) |
2022-12-09 12:15 |
Kanagawa | Keio Univ. (Kanagawa, Online) (Primary: On-site, Secondary: Online) |
A highly accurate decoding of the surface code using Ising model solver Yusaku Takeuchi, Keisuke Fujii (Osaka Univ) |
Decoding of surface codes can be done efficiently using minimum-weight perfect matching (MWPM). However, MWPM is not opt... [more] | |
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