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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| 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 |
| 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 |
| 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, 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 |
| QIT (2nd) |
2021-05-24 13:30 |
Online | Online | [Poster Presentation]
Machine Learning of Quantum Circuits Using OTOC Ryosuke Kutsuzawa, Naoya Kobayashi, Masahiro Fujii (Shizuoka Univ), Yoshifumi Nakata (Tokyo Univ), Yasunari Suzuki (NTT), Masaki Owari (Shizuoka Univ) |
Recently, Alves et al. succeeded a discrimination among Haar measure, 1-design, and 2-design by learning out of time ord... [more] | |
| 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] | |
| 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 |
| 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 |
| 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 |
| QIT (2nd) |
2019-05-20 12:00 |
Fukuoka | Kyushu University, Chikushi Campus | One-Shot Randomized and Nonrandomized Partial Decoupling Eyuri Wakakuwa (UEC), Yoshifumi Nakata (Kyoto U) |
We introduce a task that we call partial decoupling, in which a bipartite quantum state is transformed by a unitary oper... [more] | |
| EMM | 2019-03-14 11:30 |
Okinawa | TBD | Image Patch Modeling using Secure Computation of Sparse Dictionary Learning Takayuki Nakachi (NTT), Hitoshi Kiya (Tokyo Metro. Univ.) EMM2018-115 |
With the advent of the big data era, digital content continues to increase. Sparse coding is attracting attention as an... [more] |
EMM2018-115 pp.129-134 |
| SIS | 2019-03-06 15:10 |
Tokyo | Tokyo Univ. Science, Katsushika Campus | Secure Computation of Sparse Dictionary Learning Takayuki Nakachi, Yukihiro Bandoh (NTT), Hitoshi Kiya (Tokyo Metro. Univ.) SIS2018-43 |
With the advent of the big data era, all digital contents continue to increase. Sparse modeling is drawing attention as ... [more] | SIS2018-43 pp.35-40 |
| ITS, IE, ITE-MMS, ITE-HI, ITE-ME, ITE-AIT [detail] | 2019-02-20 14:45 |
Hokkaido | Hokkaido Univ. | Encrypted Image Classification by Using Secure OMP Computation Takayuki Nakachi (NTT), Hitoshi Kiya (Tokyo Metro. Univ.) ITS2018-84 IE2018-105 |
Currently, huge amounts of image/video are being recorded and uploaded every day by surveillance systems or SNS services... [more] | ITS2018-84 IE2018-105 pp.227-232 |
| IEE-CMN, EMM, LOIS, IE, ITE-ME [detail] | 2018-09-27 13:50 |
Oita | Beppu Int'l Convention Ctr. aka B-CON Plaza | Image Patch Modeling in Encrypted Domain using Sparse Coding Takayuki Nakachi (NTT), Hitoshi Kiya (Tokyo Metro. Univ.) LOIS2018-12 IE2018-32 EMM2018-51 |
Sparse coding represents observed signals effectively as a linear combination of a small number of bases which are chose... [more] | LOIS2018-12 IE2018-32 EMM2018-51 pp.13-18 |
| SIS, IPSJ-AVM, ITE-3DMT [detail] | 2018-06-07 10:20 |
Hokkaido | Jozankei View Hotel | Secure Computation of Sparse Coding for Privacy Protection Takayuki Nakachi (NTT), Hitoshi Kiya (Tokyo Metro. Univ.) SIS2018-2 |
Sparse coding represents observed signals effectively as a linear combination of a small number of bases which are chose... [more] | SIS2018-2 pp.7-12 |
| VLD, CAS, MSS, SIP | 2016-06-16 16:40 |
Aomori | Hirosaki Shiritsu Kanko-kan | A generation scheme of random unitary matrices for template protection Yuko Saito, Sayaka Shiota, Hitoshi Kiya (Tokyo Metropolitan Univ.) CAS2016-14 VLD2016-20 SIP2016-48 MSS2016-14 |
Random unitary matrices-based template protection methods have been proposed as one of biometric template protection sch... [more] | CAS2016-14 VLD2016-20 SIP2016-48 MSS2016-14 pp.73-78 |
| RCS | 2015-06-26 10:21 |
Hokkaido | Hokkaido Univ. | Performance Comparison of Random Beamforming and Codebook-Based Beamforming in Cellular Downlink with Massive MIMO Takuya Hoshino, Kenichi Higuchi (Tokyo Univ. of Science) RCS2015-89 |
This paper compares the throughput levels of random beamforming (RB) and codebook-based beamforming (CBBF) in cellular d... [more] | RCS2015-89 pp.253-256 |
| RCS, AP (Joint) |
2013-11-20 14:00 |
Shimane | Matsue Terrsa | Comparison of Beamforming Matrix Control Methods in Base Station Cooperative Multiuser MIMO Using Block-Diagonalized Beamforming Matrix Nobuhide Nonaka (Tokyo Univ. of Science), Yuichi Kakishima (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2013-176 |
This paper investigates beamforming control method in the base station (BS) cooperative multiuser multiple-input multipl... [more] | RCS2013-176 pp.13-18 |
| RCS | 2013-06-20 11:10 |
Hokkaido | Hokkaido Univ. | Base Station Cooperative Multiuser MIMO Using Block-diagonalized Random Beamforming with Online Update Nobuhide Nonaka (Tokyo Univ. of Science), Yuichi Kakishima (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2013-49 |
This paper investigates an application of random (opportunistic) beamforming (RB) to the base station (BS) cooperative m... [more] | RCS2013-49 pp.73-78 |
| SR, RCS, USN, AN (Joint) |
2008-10-22 14:35 |
Okinawa | Okinawa industry support center | A Random Beamforming Technique in Multiuser Multi-Antenna OFDM Systems for Large System Capacity and Fairness Among Users Yoshitaka Eriguchi (Tokyo Univ. of Science), Tomoaki Ohtsuki (Keio Univ.) RCS2008-107 |
We propose a random beamforming technique in multiuser multi-antenna orthogonal frequency division mulplexing (OFDM) sys... [more] | RCS2008-107 pp.25-30 |
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