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J-GLOBAL ID：201401089078901003   Update date: Oct. 24, 2024

Nakachi Takayuki

ナカチ タカユキ | Nakachi Takayuki
Affiliation and department：
University of the Ryukyus Information Technology Center

About University of the Ryukyus Information Technology Center


Job title： Professor
Other affiliations (2)：
  • University of the Ryukyus  Graduate School of Engineering and Science, Computer Science and Intelligent Systems   Professor
  • University of the Ryukyus  Graduate School of Engineering and Science, Interdisciplinary Intelligent Systems Engineering Course   Professor
Research field  (3)： Intelligent informatics ,  Information security ,  Communication and network engineering
Research keywords  (10)： Machine Learning ,  gaussian process ,  Data Science ,  Bayesian Modeling ,  BMI ,  Sparse Modeling ,  Channel Coding ,  Ultrahigh Speed Media Transmission ,  Image/Video Coding ,  Secure Signal Processing
Research theme for competitive and other funds  (19)：
  • 2024 - 2029 Ultra-high-speed In-Network Computing Platform
  • 2024 - 2025 Collaboration of Distributed Computing Resources within SINET6 Using SRv6 Service Function Chaining
  • 2022 - 2025 Secure edge AI machine learning that works with small amounts of data
  • 2023 - 2024 Achieving a High-Immersive Video Communication Environment Using SINET6 Edge Processing
  • 2023 - 2024 Joint Research on Real Space Information Understanding and Wireless Communication State Estimation Using Small Data-driven AI
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Papers (134)：
  • Ling Zhu, Takayuki Nakachi,Yitu Wang. Distributed and Secured Gaussian Process Learning over Networks. IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences (Special Section on Smart Multimedia & Communication Systems). 2025. E108-A. 3
  • Nichika Yuge, Hiroyuki Ishihara, Morikazu Nakamura, Takayuki Nakachi. Privacy Preserving Deep Unrolling Methods and Its Application to Image Modeling. IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences (Special Section on Smart Multimedia & Communication Systems). 2025. E108-A. 3
  • Kazuki Kurozawa, Takayuki Nakachi. Secure Linearized Kernel Dictionary Learning for Supervised Image Classification. IEICE International Workshop on Smart Info-Media Systems in Asia (SISA2024). 2024
  • Nichika Yuge, Takayuki Nakachi. Privacy Preserving Image Denoising Using Secure Permutation TISTA. IEICE International Workshop on Smart Info-Media Systems in Asia (SISA2024). 2024
  • Takayuki Nakachi, Yitu Wang. Privacy-preserving Bayesian Inference for Deep Gaussian Processes. IEEE International Symposium on Intelligent Signal Processing and Communications Systems (ISPACS 2024). 2024
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MISC (15)：
  • Takayuki Nakachi, Yukihiro Bandoh. [Tutorial] Privacy-Preserving Sparse Data Modeling in Encrypted Domain. IEICE Fundamentals Review. 2022. 16. 2. 100-114
  • NTT Network Innovation Laboratories. [Introduction Article] Reliable and Distributed Media Processing Technology based on Secured Sparse Coding. NTT R&D Website. 2020
  • Wang Yitu, Takayuki Nakachi, Kahoko Takahashi, Riichi Kudo. [Introduction Article] Development of Communication Quality Prediction Technology that Fuses Machine Learning (in Japanese). Business Communication. 2020
  • Yitu Wang, Takayuki Nakachi. [Tutorial] Towards Secured and Transparent AI Technologies in Hierarchical Computing Networks. NTT Technical Review. 2019. 9
  • Takayuki Nakachi. [Tutorial] A Media Transport Technology MMT in the Post-Ultra High Definition Age (in Japanese). IEICE ESS Fundamentals Review. 2018. 11. 4. 288-301
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Patents (63)：
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Books (2)：
  • Anomaly Detection technology using Machine Learning and Deep Learning and Application Examples (in charge: Chap. 1 Sec. 7 Sparse modeling and its application to anomaly detection)
    2022 ISBN:9784861049132
  • ディジタル信号処理・画像処理シリーズ ディジタル信号処理I・II
    科学技術出版 2001 ISBN:4876530386
Lectures and oral presentations  (41)：
  • [Invited Lecture] Privacy-preserving Nonlinear AI driven by the small amount of data - Gaussian process and Its secure computation -
    (2023)
  • [Invited Lecture] Small Data Driven Machine Learning and Secure Computation
    (Visual Informatics Symposium at Institute of Informatics, Osaka Electro-Communication University 2023)
  • [Online Seminar] Overview of Small Data Machine Learning and Edge AI
    (JOHOKIKO 2023)
  • [Invited Talk] Application of Small Data-driven Machine Learning to State Estimation and Prediction of Nuclear Fusion Plasma
    (3rd Plasma Informatics Workshop 2023)
  • [Invited Talk] Ultra-high-definition Video Encoding and Transmission Technologies Using Edge Cloud for Beyond 5G Era
    (Technology Research Group for Information Technology Centers 2022)
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Works (12)：
  • ISO/IEC TR 23008-13:2017, Information technology -- High efficiency coding and media delivery in heterogeneous environments -- Part 13: MPEG media transport implementation guidelines
    2017 - 現在
  • ISO/IEC 23008-10:2015, Information technology -- High efficiency coding and media delivery in heterogeneous environments -- Part 10: MPEG media transport forward error correction (FEC) codes
    2015 - 現在
  • ISO/IEC 23008-1:2017, Information technology -- High efficiency coding and media delivery in heterogeneous environments -- Part 1: MPEG media transport (MMT)
    2014 - 現在
  • ISO/IEC JTC1/SC29/WG11 MPEG m38094, "FF-LDGM Codes for CE on MMT Adaptive AL-FEC," Feb. 2016, San Diego USA
    Takayuki Nakachi, Masahiko Kitamura, Tatsuya Fujii 2016 -
  • ISO/IEC JTC1/SC29/WG11 MPEG m24019, ”MMT: NTT FEC Code Complexity,” Jan. 2013, Geneva Switzerland
    Takayuki Nakachi, Yoshihide Tonomura, Daisuke Shirai, Tatsuya Fujii 2013 -
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Professional career (1)：
  • Ph. D. (Keio University)
Work history (5)：
  • 2021/04 - 現在 University of the Ryukyus Information Technology Center Professor
  • 2021 - 現在 University of the Ryukyus Computer Science and Intelligent Systems, Graduate School of Engineering and Science (Concurrently) Professor
  • 2021 - 現在 University of the Ryukyus Interdisciplinary Intelligent Systems Engineering, Graduate School of Engineering and Science (Concurrently) Professor
  • 1997/04 - 2021/03 Nippon Telegraph and Telephone Corporation Network Innovation Laboratories
  • 2006/09 - 2007/08 Stanford University Visiting Scientist
Committee career (26)：
  • 2023/09 - 現在 IEICE Transaction Editors-in-Chief, Special Section on Smart Multimedia & Communication Systems, Transactions on Fundamentals of Electronics Communications and Computer Sciences
  • 2023/01 - 現在 IEEE ISPACS International Steering Committee Vice Chair
  • 2022/06 - 現在 IT Innovation and Strategy Center Okinawa : ISCO Councilor
  • 2020/06 - 現在 IEICE Technical Committee on Smart Info-Media Systems (SIS) Adviser
  • 2023/06 - 2024/05 IEICE Technical Committee on Signal Processing (SIP) Chair
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Awards (13)：
  • 2024/10 - ACM International Conference on Advances in Artificial Intelligence (ICAAI 2024) Best Presentation Award Privacy-preserving Bayesian Inference for Sparse Gaussian Processes
  • 2024/09 - IEICE Contribution Award (for contributions to the management of the international conference SISA2023)
  • 2023/09 - IEEE WSCE 2023 Conference Best Presentation Award A Design Method for Golomb Coding in Layered Scrambled JPEG XS Scheme
  • 2023/03 - IEICE Technical Committee on Enriched MultiMedia (EMM) 2022 EMM Study Group Excellence Research Award
  • 2022/12 - SIP Certificate of Appreciation for SIP symposium TPC Chair, IEICE
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Association Membership(s) (2)：
IEEE ,  THE INSTITUTE OF ELECTRONICS, INFORMATION AND COMMUNICATION ENGINEERS
※ Researcher’s information displayed in J-GLOBAL is based on the information registered in researchmap. For details, see here.

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