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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| PN | 2024-04-30 16:05 |
Tokyo | (Primary: On-site, Secondary: Online) |
[Invited Talk]
8K ultra-high definition video handling system using a high bandwidth, low latency real-time processing platform Mitsuru Maruyama, Katsuhiro Sebayashi, Hajime Iwata (KAIT), Hiroyuki Kimiyama (Daido Univ.), Takayuki Nakachi (Ryukyus Univ.), Yasuhisa Kato (Miharu)  PN2024-5 |
Advances in high-capacity optical transmission technology have made it possible to conduct various experiments using 400... [more] | PN2024-5 pp.25-30 |
| SIP, SP, EA, IPSJ-SLP [detail] | 2024-02-29 15:10 |
Okinawa | (Primary: On-site, Secondary: Online) |
Privacy preserving deep unrolling ISTA method for sparse representation Nichika Yuge, Takayuki Nakachi (Univ. of the Ryukyus.) EA2023-81 SIP2023-128 SP2023-63 |
In recent years, the use of edge and cloud computing has expanded. Along with this, a method called sparse modeling is a... [more] | EA2023-81 SIP2023-128 SP2023-63 pp.121-126 |
| SIP, IT, RCS | 2024-01-19 15:55 |
Miyagi | (Primary: On-site, Secondary: Online) |
Privacy-Preserving Linearized Kernel Dictionary Learning Kazuki Kurozawa, Takayuki Nakachi (University of the Ryukyus) IT2023-74 SIP2023-107 RCS2023-249 |
[more] | IT2023-74 SIP2023-107 RCS2023-249 pp.239-244 |
| SIP | 2023-08-08 11:20 |
Osaka | Osaka Univ. (Suita) Convention Center (Primary: On-site, Secondary: Online) |
Privacy-preserving Kernel Dictionary Learning for Sparse Modeling Kazuki Kurozawa, Takayuki Nakachi, Morikazu Nakamura (Univ. of the Ryukyus) SIP2023-56 |
[more] | SIP2023-56 pp.43-48 |
| MSS, CAS, SIP, VLD | 2023-07-06 13:00 |
Hokkaido | (Primary: On-site, Secondary: Online) |
[Panel Discussion]
Democratization of Researches in Circuits and Systems fields and Initiatives in Technical Groups Makoto Ikeda (The Univ. of Tokyo), Yasutoshi Aibara (OVT), Shigetoshi Nakatake (The Univ. of Kitakyushu), Takayuki Nakachi (Univ. of Ryukyus), Shingo Yamaguchi (Yamaguchi Univ.) CAS2023-7 VLD2023-7 SIP2023-23 MSS2023-7 |
Open Access initiatives, which allow access and use of research results funded by public research funds not only by the ... [more] | CAS2023-7 VLD2023-7 SIP2023-23 MSS2023-7 pp.34-36 |
| MSS, CAS, SIP, VLD | 2023-07-06 15:20 |
Hokkaido | (Primary: On-site, Secondary: Online) |
A Study on Golomb Coding for Scrambled Domain Layered Coding Compatible with JPEG XS Takayuki Nakachi (Univ. of the Ryukyus), Hiroyuki Kimiyama (Daido), Mitsuru Murayama (KAIST) CAS2023-10 VLD2023-10 SIP2023-26 MSS2023-10 |
In this report, we propose a Golomb coding method for scrambled domain layered coding compatible with JPEG XS. The propo... [more] | CAS2023-10 VLD2023-10 SIP2023-26 MSS2023-10 pp.47-52 |
| BioX, SIP, IE, ITE-IST, ITE-ME [detail] | 2023-05-19 10:30 |
Mie | Sansui Hall, Mie University (Primary: On-site, Secondary: Online) |
Privacy Preserving Deep Unrolling Methods using Random Unitary Transform Nichika Yuge, Takayuki Nakachi, Morikazu Nakamura (Univ. of the Ryukyus.) SIP2023-10 BioX2023-10 IE2023-10 |
Edge and cloud computing has been spreading in many fields including machine learning.Sparse modeling attracts attention... [more] | SIP2023-10 BioX2023-10 IE2023-10 pp.41-46 |
| SIS, ITE-BCT | 2022-10-13 13:55 |
Aomori | Hachinohe Institute of Technology (Primary: On-site, Secondary: Online) |
An 8K image perceptual scramble scheme for JPEG XS standard Takayuki Nakachi (Univ. of the Ryukyus), Hiroyuki Kimiyama (Daido), Mitsuru Murayama (KAIST) SIS2022-11 |
In this report, we propose a scrambled image compression algorithm for the JPEG XS standard. The JPEG XS is a low-delay,... [more] | SIS2022-11 pp.1-6 |
| EMM | 2022-03-08 11:50 |
Online | (Primary: Online, Secondary: On-site) (Primary: Online, Secondary: On-site) |
RUT Computation of Gaussian Process Regression for Encrypting Input and Output Signals Takayuki Nakachi (Univ. of the Ryukyus), Yitu Wang (NTT) EMM2021-115 |
n this paper, we propose Gaussian Process Regression (GPR) for encrypted data generated based on random unitary transfor... [more] | EMM2021-115 pp.124-129 |
| SIS, ITE-BCT | 2021-10-07 11:40 |
Online | Online | Wireless Channel Prediction with Gaussian Process Yitu Wang (NTT), Takayuki Nakachi (former NTT), Takeru Inoue, Toru Mano, Kudo Riichi (NTT) SIS2021-12 |
With accurate knowledge of future Channel State Information (CSI), it becomes possible to better manipulate the wireless... [more] | SIS2021-12 pp.11-16 |
| SIS, IPSJ-AVM | 2021-06-24 13:45 |
Online | Online | Privacy-Preserving Secure Computation of Gaussian Process Regression
-- Find patterns and rules from encrypted data -- Takayuki Nakachi (Univ. of the Ryukyus), Yitu Wang (NTT) SIS2021-8 |
In this paper, we propose Gaussian Process Regression (GPR) for encrypted data generated based on random unitary transfo... [more] | SIS2021-8 pp.43-48 |
| EMM, IT | 2021-05-20 16:10 |
Online | Online | [Invited Talk]
Secure Computation of Sparse Modeling
-- Edge AI with Lightweight and Small Amounts of Data -- Takayuki Nakachi (Univ. of the Ryukyus) IT2021-6 EMM2021-6 |
With the advent of the big data, IoT, AI era, all digital contents continue to increase. Sparse modeling is drawing atte... [more] | IT2021-6 EMM2021-6 pp.31-36 |
| SIS | 2021-03-05 10:00 |
Online | Online | Prediction of Network Traffic through Gaussian Process Yitu Wang, Takayuki Nakachi (NTT) SIS2020-54 |
With accurate network traffic prediction, future communication networks can realize self-management and enjoy intelligen... [more] | SIS2020-54 pp.103-108 |
| HCGSYMPO (2nd) |
2020-12-15 - 2020-12-17 |
Online | Online | Joint Inter-device Matching and Temporal Alignment between Camera and Wearable Sensors using 3D Motion Correlation Hiroyuki Ishihara, Shiro Kumano, Takayuki Nakachi (NTT) |
In this paper, we propose a method to estimate the correspondence between a person’s ID and a device ID of a person, and... [more] | |
| SIS, ITE-BCT | 2020-10-01 15:10 |
Online | Online | Fast Beamforming using Sparse Coding for mmWave Communications Yitu Wang, Takayuki Nakachi (NTT Lab) SIS2020-19 |
The sensitivity of mmWave to blockages together with its directionality bring new technical challenges in the vehicular ... [more] | SIS2020-19 pp.48-53 |
| SP, EA, SIP | 2020-03-02 15:10 |
Okinawa | Okinawa Industry Support Center (Cancelled but technical report was issued) |
A Pattern Recognition Method Using Secure Sparse Representations in L0 Norm Minimization Takayuki Nakachi, Yitu Wang (NTT), Hitoshi Kiya (Tokyo Metro. Univ.) EA2019-130 SIP2019-132 SP2019-79 |
In this paper, we propose a privacy-preserving pattern recognition method using encrypted sparse representations in L0 n... [more] | EA2019-130 SIP2019-132 SP2019-79 pp.169-174 |
| CS, CAS | 2020-02-27 14:30 |
Kumamoto | An Estimation of Network Traffic Validation based on Sparse Coding Takayuki Nakachi, Yitu Wang (NTT) CAS2019-107 CS2019-107 |
With accurate network traffic prediction, future communication networks can realize self-management and enjoy intelligen... [more] | CAS2019-107 CS2019-107 pp.55-60 |
|
| ITE-BCT, SIS | 2019-10-25 11:10 |
Fukui | Fukui International Activities Plaza | Image Compression in Encryption-then-Compression System Using Secure Sparse Representations Takayuki Nakachi (NTT), Hitoshi Kiya (Tokyo Metro. Univ.) SIS2019-21 |
n this paper, we propose a image compression method using secure sparse representations in Encryption-then-Compression (... [more] | SIS2019-21 pp.77-82 |
| OCS, LQE, OPE | 2019-10-18 10:20 |
Kagoshima | Intelligent Monitoring of Optical Fiber Transmission Using Sparse Coding Takayuki Nakachi, Yitu Wang, Tetsuro Inui, Takafumi Tanaka, Takahiro Yamaguchi, Katsuhiro Shimano (NTT) OCS2019-42 OPE2019-80 LQE2019-58 |
This paper proposes a sparse coding-based intelligent constellation diagram analyzer for optical fiber communications. I... [more] | OCS2019-42 OPE2019-80 LQE2019-58 pp.77-82 |
|
| IE, EMM, LOIS, IEE-CMN, ITE-ME, IPSJ-AVM [detail] | 2019-09-19 15:10 |
Niigata | Tokimeito, Niigata University | Secure sparse representations in L0 norm minimization Takayuki Nakachi (NTT), Hitoshi Kiya (Tokyo Metro. Univ.) LOIS2019-11 IE2019-24 EMM2019-68 |
In this paper, we propose a method to estimate secure sparse representations in L0 norm minimization, and evaluate the e... [more] | LOIS2019-11 IE2019-24 EMM2019-68 pp.25-30 |
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