Rchr
J-GLOBAL ID:201401021344094026   Update date: Feb. 01, 2024

Yamagata Koichi

Yamagata Koichi | Yamagata Koichi
Affiliation and department:
Job title: Associate Professor
Research field  (3): Statistical science ,  Mathematical physics and basic theory ,  Applied mathematics and statistics
Research keywords  (4): 深層学習 ,  情報幾何学 ,  量子情報 ,  非可換統計
Research theme for competitive and other funds  (3):
  • 2023 - 2028 量子力学的システムの統計的性質に内在する情報幾何構造の総合的研究
  • 2022 - 2027 量子統計における漸近理論
  • 2017 - 2022 古典および量子統計的システムにおける新規な情報幾何構造の探究
Papers (19):
  • Akio Fujiwara, Koichi Yamagata. Efficiency of estimators for locally asymptotically normal quantum statistical models. The Annals of Statistics. 2023. 51. 3. 1159-1182
  • Koichi Yamagata, Jinhwan Kwon, Takuya Kawashima, Wataru Shimoda, Maki Sakamoto. Computer Vision System for Expressing Texture Using Sound-Symbolic Words. Frontiers in Psychology. 2021. 12(595986). 1-11
  • K. Yamagata. Maximum logarithmic derivative bound on quantum state estimation as a dual of the Holevo bound. Journal of Mathematical Physics. 2021. 62. 6. 062203-062203
  • Maki Sakamoto, Junji Watanabe, Koichi Yamagata. Automatic Estimation of Multidimensional Personality From a Single Sound-Symbolic Word. Frontiers in Psychology. 2021. 12. 595986. 1-16
  • Koichi Yamagata. Noncommutative Lebesgue decomposition and contiguity with applications in quantum statistics. Bernoulli. 2020. 26. 3. 2105-2142
more...
MISC (4):
  • 山形 浩一. 量子統計における弱収束に基づく局所漸近正規性 (量子系の統計的推測とその幾何学的構造). 数理解析研究所講究録. 2015. 1953. 46-52
  • Oyama Satoshi, Okamoto Ryo, Ono Takafumi, Takeuchi Shigeki, Yamagata Koichi, Fujiwara Akio. 30aCC-8 Adaptive Quantum State Estimation for Single Quantum Bit. Meeting abstracts of the Physical Society of Japan. 2014. 69. 1. 215-215
  • Oyama Satoshi, Iefuji Minako, Okamoto Ryo, Yamagata Koichi, Fujiwara Akio, Takeuchi Shigeki. 19aAK-9 Adaptive Measurement for Quantum Phase Estimation II. Meeting abstracts of the Physical Society of Japan. 2012. 67. 2. 141-141
  • Iefuji Minako, Okamoto Ryo, Yamagata Koichi, Imai Hiroshi, Fujiwara Akio, Takeuchi Shigeki. 22pEB-4 Adaptive Measurement for Quantum Phase Estimation. Meeting abstracts of the Physical Society of Japan. 2011. 66. 2. 151-151
Patents (1):
  • 学習装置,空間制御装置,学習プログラムおよび空間制御プログラム
Lectures and oral presentations  (15):
  • A theory of quantum local asymptotic normality, Part II: Asymptotic representation theorem
    (Mini Workshop: Recent Advances in Quantum Mathematical Statistics 2023)
  • Efficiency of estimators for locally asymptotically normal quantum statistical models
    (The Mathematical Society of Japan Spring Meeting 2023 2023)
  • 量子推定における漸近理論の最近の進展
    (第3回QIQBセミナー 2023)
  • Efficiency of estimators for locally asymptotically normal quantum statistical models
    (The 47th Quantum Information Technology Symposium (QIT47) 2022)
  • Maximum logarithmic derivative bound on quantum state estimation as a dual of the Holevo bound
    (Technical Committee on Information Theory 2022)
more...
Education (1):
  • 2010 - 2013 Osaka University Graduate School of Science Department of Mathematics
Professional career (1):
  • 博士(理学) (大阪大学)
Work history (9):
  • 2023/04 - 現在 Kanazawa University Institute of Science and Engineering Associate Professor
  • 2018/04 - 2022/02 The University of Electro-Communications Artificial Intelligence eXploration Research Center
  • 2022/02 - 2023/04 National Institute of Informatics Global Research Center for Quantum Information Science Associate Professor by Special Appointment
  • 2015/04 - 2018/03 Chuo University Faculty of Science and Engineering Department of Information and System Engineering
  • 2014/10 - 2015/03 National Institute of Advanced Industrial Science and Technology
Show all
Awards (1):
  • 2014/10 - 生命医薬情報学連合 生命医薬情報学連合大会奨励賞 COSMOS:トリオや近交系も扱える精度の高い染色体構造 変異の検出手法
Association Membership(s) (3):
電子情報通信学会 ,  人工知能学会 ,  日本数学会
※ Researcher’s information displayed in J-GLOBAL is based on the information registered in researchmap. For details, see here.

Return to Previous Page