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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 125  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
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)
(To be available after the conference date) [more]
CS 2022-07-14
13:55
Kagoshima Yakushima Environmental and Cultural Village Center
(Primary: On-site, Secondary: Online)
[Special Invited Talk] An Underwater Positioning System based on Wireless Acoustic OFDM Communication for multiple AUVs team operation
Tomohisa Wada (Ryukyu Univ.) CS2022-24
This paper proposes a new underwater positioning system which does not use INS in order to realize a compact and lower c... [more] CS2022-24
p.46
CAS, SIP, VLD, MSS 2022-06-17
15:20
Aomori Hachinohe Institute of Technology
(Primary: On-site, Secondary: Online)
Petri Net-based QUBO Model Formulation for Flow Shop Scheduling with Setup Changes
Takuya Shinjo, Morikazu Nakamura (Univ. of the Ryukyus), Norihiko Itani (Fujitsu Ltd.) CAS2022-17 VLD2022-17 SIP2022-48 MSS2022-17
This paper proposes a formulation method of quadratic unconstrained binary optimization (QUBO) model for flow-shop sched... [more] CAS2022-17 VLD2022-17 SIP2022-48 MSS2022-17
pp.90-95
CAS, SIP, VLD, MSS 2022-06-17
15:45
Aomori Hachinohe Institute of Technology
(Primary: On-site, Secondary: Online)
QUBO Model Formulation based on Petri net Behavior for Combinatorial Optimization Problems
Keisuke Tokuhira, Morikazu Nakamura, Mitsunaga Kinjo, Katsuhiko Shimabukuro (Univ. of the Ryukyus) CAS2022-18 VLD2022-18 SIP2022-49 MSS2022-18
This paper proposes a method to generate Ising or QUBO models based on Petri net behavioral properties for combinatorial... [more] CAS2022-18 VLD2022-18 SIP2022-49 MSS2022-18
pp.96-101
RECONF 2022-06-07
14:50
Ibaraki CCS, Univ. of Tsukuba
(Primary: On-site, Secondary: Online)
Vector Register Sharing Mechanism for Hardware Acceleration
Tomoaki Tanaka, Ryousuke Higashi (TUAT), Kiyofumi Tanaka (JAIST), Yasunori Osana (Univ. of the Ryukyus), Takefumi Miyoshi (Wasalabo), Jubee Tada (Yamagata Univ.), Hironori Nakajo (TUAT) RECONF2022-5
In this paper, we present a vector register sharing mechanism that directly shares vector registers inside the processor... [more] RECONF2022-5
pp.26-31
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
MSS, CAS, IPSJ-AL [detail] 2021-11-19
10:30
Online Online MILP Formulation for Optimal Resource Assignment Problems with Multiple Resource Requirements based on Timed Colored Petri Nets
Tomoya Ushihara, Morikazu Nakamura (Univ. of the Ryukyus) CAS2021-47 MSS2021-27
We consider a mixed-integer linear programming (MILP) generation based on colored timed Petri nets for optimal resource ... [more] CAS2021-47 MSS2021-27
pp.58-63
MSS, CAS, IPSJ-AL [detail] 2021-11-19
10:55
Online Online Ising Model Formulation for Job-shop Scheduling Problems based on Petri Nets Modeling
Kohei Kaneshima, Morikazu Nakamura (Univ. of the Ryukyus) CAS2021-48 MSS2021-28
Quantum annealing has been drawing attention as a fast algorithm for solving combinatorial optimization problems.
The o... [more]
CAS2021-48 MSS2021-28
pp.64-69
MIKA
(3rd)
2021-10-28
15:05
Okinawa
(Primary: On-site, Secondary: Online)
[Invited Talk] Control of fruit harvest time and improvement of quality by mango production system utilizing IoT
Yasushi Shiroma, Hitoshi Afuso, Ryuichi Suwa (Univ. of the Ryukyus), Atsushi Kinjo (National institute of Technology, Okinawa College), Yuki Tonooka (Univ. of the Ryukyus), Takeshi Kaga (Okinawa Cellular Agri &Marche), Itaru Nagayama, Shiro Tamaki (Univ. of the Ryukyus), Gauri Maharjan (Philips)
 [more]
RECONF 2021-09-10
15:45
Online Online RECONF2021-23 (To be available after the conference date) [more] RECONF2021-23
pp.36-41
SDM, ICD, ITE-IST [detail] 2021-08-18
13:45
Online Online Performance Evaluation of Serial-Parallel Montgomery Multipliers for RNS
Hiroyuki Tsubouchi, Mitsunaga Kinjo, Katsuhiko Shimabukuro (Univ. of the Ryukyus) SDM2021-40 ICD2021-11
Modulo operations are required in RNS (Residue Number System) which enables to perform highly parallel computation. Also... [more] SDM2021-40 ICD2021-11
pp.54-57
AP, SANE, SAT
(Joint)
2021-07-28
11:15
Online Online Study on Moving Target Detection for Polarimetric Ocean Radar
Tatsuhiro Koizumi, Hiroyoshi Yamada (Niigata Univ.), Satoshi Fujii, Yasunori Osana (Univ. of the Ryukyus), Toru Uno (Tokyo Univ. of A&T) SANE2021-16
As the use of coastal areas expands, the demand for ocean radar is increasing. Potential of the radar is not limited to ... [more] SANE2021-16
pp.7-11
ITS 2021-07-02
13:05
Online Online Error Reduction Method employing Dither Method with Interfering Signals for Distance Estimation Technique
Seiya Horiuchi, Hiroyuki Hatano, Kosuke Sanada, Kazuo Mori (Mie Univ.), Takaya Yamazato (Nagoya Univ.), Shintaro Arai (Okayama Univ. of Science), Masato Saito (Univ. of the Ryukyus), Yukihiro Tadokoro, Hiroya Tanaka (Toyota CRDL) ITS2021-1
In positioning systems, the Received Signal Strength Indicator (RSSI) is actively used to measure between user’s device ... [more] ITS2021-1
pp.1-6
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
SP, IPSJ-SLP, IPSJ-MUS 2021-06-18
13:00
Online Online F0 estimation of speech based on l2-norm regularized TV-CAR analysis
Keiichi Funaki (Univ. of the Ryukyus) SP2021-2
Linear Prediction (LP) is the most successful speech analysis in speech processing, including speech coding implemented
... [more]
SP2021-2
pp.7-12
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
NC, IBISML, IPSJ-BIO, IPSJ-MPS [detail] 2020-06-29
15:25
Online Online A Study on Model-based Deep Reinforcement Learning Using Autonomous Search for Subgoal
Motoki Maruyama, Satoshi Endo, Koji Yamada (Univ. of the Ryukyus) NC2020-6 IBISML2020-6
Model-based deep reinforcement learning (DRL) is more sample-efficient than model-free DRL. But it requires a deep gener... [more] NC2020-6 IBISML2020-6
pp.33-38
MSS, NLP
(Joint)
2020-03-10
09:25
Aichi  
(Cancelled but technical report was issued)
Optimal Resource Allocation for Distributed Computing Environments based on Integer Programming Generation
Shoya Kyan, Tomoya Uchihara, Morikazu Nakamura (Univ. of the Ryukyus) MSS2019-64
This paper considers resource assignment problems in distributed computing environments based on the automatic generatio... [more] MSS2019-64
pp.37-42
SS, MSS 2020-01-15
11:20
Hiroshima   Modeling of Prediction Processes based on Learning Colored Petri Nets
Ibuki Kawamitsu, Morikazu Nakamura (Univ. of the Ryukyus) MSS2019-53 SS2019-37
This paper presents a modeling approach to visualize the prediction process of machine learning based on learning colore... [more] MSS2019-53 SS2019-37
pp.73-78
SIS 2019-12-13
10:40
Okayama Okayama University of Science Development of Route Traveling System in Autonomous Flight Control of UAV
Yoshiki Shimabukuro, Tomoki Miyazato (Univ. of the Ryukyus) SIS2019-33
Currently, UAV is attracting attention as one of the IoT technologies. Various studies are being conducted on UAV, and i... [more] SIS2019-33
pp.51-56
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