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Title |
Professor |
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Researcher Number(JSPS Kakenhi) |
00628472 |
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Laboratory Address |
1 Senbaru,Nishihara,Okinawa 903-0213 |
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Mail Address |
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Laboratory Phone number |
+81-98-895-8949 |
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Homepage URL |
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Profile |
Dr. Takayuki Nakachi is a Professor of the Information Technology Center in University of the Ryukyus. He received the Ph.D. degree in electrical engineering from Keio University, Tokyo, Japan, in 1997. Since he joined Nippon Telegraph and Telephone Corporation (NTT) in 1997, he has been engaged in research on super-high-definition image/video coding, media transport technologies. From 2006 to 2007, he was a visiting scientist at Stanford University. He also actively participates in MPEG international standardization. His current research interests include secure and light-weight AI technologies based on sparse modeling, and communication science. He received the 26th TELECOM System Technology Award, the 6th Paper Award of Journal of Signal Processing and the Best Paper Award of IEEE ISPACS2015. Dr. Nakachi is a member of the Institute of Electrical and Electronics Engineers the Institute of Electronics (IEEE) and the Information and Communication Engineers (IEICE) of Japan. |
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NAKACHI Takayuki
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Current Affiliation Organization 【 display / non-display 】
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Duty University of the Ryukyus Information Technology Center Professor
External Career 【 display / non-display 】
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1997.04-2021.03
NTT Network Innovation Laboratories, Nippon Telegraph and Telephone Corporation
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2006.09-2007.08
Visiting Scientist, Stanford University
Affiliated academic organizations 【 display / non-display 】
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IEEE (Institute of Electrical and Electronics Engineers)
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The Institute of Electronics, Information and Communication Engineers
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2010.01-Now
IEEE ISPACS International Steering Committee
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2018.05-2020.05
IEICE Chair, Technical Committee on Smart Info-Media Systems (SIS)
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2020.06-Now
IEICE Adviser, Technical Committee on Smart Info-Media Systems (SIS)
Research Interests 【 display / non-display 】
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Data Science
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Edge AI Machine Learning
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Secure Signal Processing
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Super-high Definition Image/Video Coding
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Channel Coding
Research Areas 【 display / non-display 】
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Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Communication and network engineering
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Informatics / Information security
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Informatics / Intelligent informatics
Published Papers 【 display / non-display 】
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A Light-weight Online Learning Framework for Network Traffic Abnormality Detection
Yitu Wang, Runqi Dong, Takayuki Nakachi, Wei Wang
IEEE Wireless Communications and Networking Conference (WCNC2023) ( IEEE ) 2023.03 [ Peer Review Accepted ]
Type of publication: Research paper (international conference proceedings)
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Light Weight Scrambled JPEG XS Coding for Privacy Protection
Takayuki Nakachi, Hiroyuki Kimiyama, Mitsuru Maruyama
IEEE International Symposium on Intelligent Signal Processing and Communications Systems (ISPACS 2022) 2022.11 [ Peer Review Accepted ]
Type of publication: Research paper (international conference proceedings)
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Uncompressed 8K Video Processing on Edge Computing
Katsuhiro Sebayashi, Mitsuru Maruyama, Hajime Iwata, Hiroyuki Kimiyama, Takayuki Nakachi, Kouta Aoki, Yasuhisa Kato, Shigeo Urushidani, Takeshi Kurimoto, Eiji Kawai, Hideki Otsuki, Kazumasa Kobayashi
The International Conference for High Performance Computing, Networking, Storage, and Analysis (SC22) 2022.11 [ Peer Review Accepted ]
Type of publication: Research paper (international conference proceedings)
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Pattern Discovery and Multi-slot-ahead Forecast of Network Traffic: A Revisiting to Gaussian Process
Yitu Wang, Takayuki Nakachi, Wei Wang
IEEE Transactions on Network and Service Management 2022.10 [ Peer Review Accepted ]
Type of publication: Research paper (scientific journal)
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Proposal of Ultra-high-resolution Video Delivery System on Edge-cloud Environment
Hiroyuki Kimiyama, Mitsuru Maruyama, Takayuki Nakachi
IEEE International Conference on Consumer Electronics (ICCE-TW 2022) 2022.06 [ Peer Review Accepted ]
Type of publication: Research paper (international conference proceedings)
Books 【 display / non-display 】
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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)
Takayuki Nakachi, Others ( Part: Multiple Authorship )
NTS Inc. 2022.12
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Digital Signal Processing I/II
John G, Proakis 他著, 浜田望, 田口亮, 近藤克哉, 仲地孝之 ( Part: Joint Translation )
Kagaku Gijutsu Syuppan 2001
Other Papers 【 display / non-display 】
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NTT Network Innovation Laboratories
NTT R&D Website 2020.09
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Wang Yitu, Takayuki Nakachi, Kahoko Takahashi, Riichi Kudo
Business Communication 2020.06
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[解説記事] Towards Secured and Transparent AI Technologies in Hierarchical Computing Networks
Yitu Wang, Takayuki Nakachi
NTT Technical Review ( 9 ) 2019.09
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[Tutorial] A Media Transport Technology MMT in the Post-Ultra High Definition Age (in Japanese)
Takayuki Nakachi
IEICE ESS Fundamentals Review 11 ( 4 ) 288 - 301 2018.04
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Takayuki Nakachi
Journal of Information Processing(JIP) 58 ( 2 ) 112 - 115 2017.01
Presentations 【 display / non-display 】
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[Invited Talk] Application of Small Data-driven Machine Learning to State Estimation and Prediction of Nuclear Fusion Plasma
Takayuki Nakachi
3rd Plasma Informatics Workshop 2023.01 - 2023.01
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[Invited Talk] Ultra-high-definition Video Encoding and Transmission Technologies Using Edge Cloud for Beyond 5G Era
Takayuki Nakachi
Technology Research Group for Information Technology Centers 2022.09 - 2022.09
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[Invited Talk] Sparse Modeling in the AI Machine Learning Era
Takayuki Nakachi
The 35th Workshop on Circuits and Systems 2022.08 - 2022.08
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[Keynote Speech] Low Latency and Lightweight Video Computing in Edge Cloud Networks
Takayuki Nakachi
International Technical Conference on Circuits/Systems, Computers, and Communications (ITC-CSCC2022) 2022.07 - 2022.07
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[Invited Lecture] Ultra-high Definition Video Coding in Network Computing Era
Takayuki Nakachi
LSI Design Contest 2022 (Ohama Nobumoto Memorial Hall, Ishigaki, Okinawa) 2022.03 - 2022.03
Industrial Property 【 display / non-display 】
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Encoding Method, Decoding Method, Encoding Device, and Decoding Device
Industrial Property No PCT/JP2004/000154 (2004.01.13)
Patent No US9264736 B2 (2016.02.16)
Takayuki Nakachi, Tomoko Sawabe, Tetsuro Fujii
Grant-in-Aid for Scientific Research 【 display / non-display 】
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Secure edge AI machine learning that works with small amounts of data
Grant-in-Aid for Scientific Research(C)
Project Year: 2022.04 - 2025.03
Total: 3,200,000 (YEN)
Joint Research activities 【 display / non-display 】
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Sparse Modeling/Gaussian Process for State Estimation and Prediction of Fusion Plasma
Project Year: 2023.01 - 2024.02
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Media processing and transmission application technologies using small data driven AI
Project Year: 2022.06 - 2023.02
Member: Hiroyuki Ishihara, et al. (NTT Labs.)
Total: 2,000,000 (YEN)
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Machine learning works with small data and its applications to communications
Project Year: 2021.12 - 2022.02
Investigator(s): Takayuki Nakachi Member: Yitu Wang, et al. (NTT Labs.)
Total: 1,000,000 (YEN)
Social Activity 【 display / non-display 】
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Councilor, IT Innovation and Strategy Center Okinawa
2022.06-2026.06