Committee 
Date Time 
Place 
Paper Title / Authors 
Abstract 
Paper # 
IT, ISEC, RCC, WBS 
20220310 14:15 
Online 
Online 
Distributed Online Optimization under Inequality Constraints on Directed Open Multiagent Systems Riki Sawamura, Naoki Hayashi, Masahiro Inuiguchi (Osaka Univ.) IT2021108 ISEC202173 WBS202176 RCC202183 
Distributed optimization in multiagent systems has attracted attention in various fields. In this study, we consider a ... [more] 
IT2021108 ISEC202173 WBS202176 RCC202183 pp.150154 
ICM 
20210716 10:00 
Online 
Online 
Event Correlation Method with Bayesian Network Atsushi Takada, Naoki Hayashi, Ryosuke Sato, Toshihiko Seki, Kyoko Yamagoe (NTT) ICM202115 
Nowadays, research has been conducted to automate the operation of IT services using AI and orchestrator. In the operati... [more] 
ICM202115 pp.2833 
RCS, SR, NS, SeMI, RCC (Joint) 
20210714 11:20 
Online 
Online 
Model Predictive Control with Robust Constraint Satisfaction Using Gaussian Process Wataru Hashimoto, Naoki Hayashi, Shigemasa Takai (Osaka Univ) RCC202124 
[more] 
RCC202124 pp.1316 
RCC 
20210122 13:55 
Online 
Online 
Distributed MiniBatch Stochastic Subgradient Algorithm over Directed Networks Daichi Ishikawa, Naoki Hayashi, Shigemasa Takai (Osaka Univ.) RCC202035 
We consider a constrained optimization problem of minimizing the sum of the local convex objective function values of ag... [more] 
RCC202035 pp.48 
MSS, CAS, IPSJAL [detail] 
20201125 16:10 
Online 
Online 
Distributed convex optimization with inequality constraints over directed graphs based on row stochasticity Hiroaki Sakuma, Naoki Hayashi, Shigemasa Takai (Osaka Univ.) CAS202022 MSS202014 
Distributed optimization is a method in which agents exchange information on the network to obtain the optimal solution ... [more] 
CAS202022 MSS202014 pp.1621 
ICM 
20200716 12:55 
Online 
Online 
Configuration management method by adding traffic considering network load Mizuto Nakamura, Naoki Hayashi, Atsushi Takada, Toshihiko Seki, Kyoko Yamagoe (NTT) ICM20209 
[more] 
ICM20209 pp.712 
ICM, IPSJCSEC, IPSJIOT 
20200514 13:15 
Online 
Online 
Topology Discovery Method with Alarm Information for Telecom Network Atsushi Takada, Naoki Hayashi, Mizuto Nakamura, Naoyuki Tanji, Toshihiko Seki, Kyoko Yamagoe (NTT) ICM20201 
[more] 
ICM20201 pp.16 
RCC 
20200127 14:10 
Osaka 

Distributed online subgradient method over unbalanced directed graphs Makoto Yamashita, Naoki Hayashi, Takeshi Hatanaka, Shigemasa Takai (Osaka Univ.) RCC201972 
This paper considers a constrained distributed online optimization problem over strongly connected unbalanced directed n... [more] 
RCC201972 pp.1318 
RCC, ITS, WBS 
20191106 13:50 
Nara 
Nara Institute of Science and Technology 
A Preliminary Study on Distributed LQ Control Approach for Blade Pitch Angle Control of Floating Offshore Wind Farm Wataru Hashimoto, Naoki Hayashi (Osaka Univ), Naoyuki Hara (Osaka Pref Univ), Shigemasa Takai (Osaka Univ) WBS201933 ITS201924 RCC201964 
[more] 
WBS201933 ITS201924 RCC201964 pp.5357 
SeMI, RCS, NS, SR, RCC (Joint) 
20190710 11:35 
Osaka 
ISite Nanba（Osaka） 
Distributed Convex Optimization by Consensus ADMM with Communication TimeDelays Kazuma Tanaka, Naoki Hayashi, Shigemasa Takai (Osaka Univ.) RCC201913 
[more] 
RCC201913 pp.1114 
IBISML 
20181105 15:10 
Hokkaido 
Hokkaido Citizens Activites Center (Kaderu 2.7) 
[Poster Presentation]
Variational Approximation Accuracy in Nonnegative Matrix Factorization Naoki Hayashi (MSI) IBISML201851 
The asymptotic behavior of the variational free energy of the nonnegative matrix factorization (NMF) has been elucidate... [more] 
IBISML201851 pp.5360 
MBE, NC (Joint) 
20180314 10:25 
Tokyo 
KikaiShinkoKaikan Bldg. 
Experimental Analysis of Real Log Canonical Threshold in Stochastic Matrix Factorization using Hamiltonian Monte Carlo Method Naoki Hayashi, Sumio Watanabe (Tokyo Tech) NC201789 
For the real log canonical threshold (RLCT) that gives the Bayesian generalization error of stochastic matrix factorizat... [more] 
NC201789 pp.127131 
MSS, NLP (Joint) 
20180312 14:25 
Osaka 

Analysis of Distributed Cooperative Thompson Sampling Motoki Kamimura, Naoki Hayashi, Shigemasa Takai (Osaka Univ.) MSS201780 
The bandit problem is a mathematical model which formulates the tradeoff between the exploration for the better strateg... [more] 
MSS201780 pp.1520 
IBISML 
20171109 13:00 
Tokyo 
Univ. of Tokyo 
[Poster Presentation]
Real Log Canonical Threshold of Stochastic Matrix Factorization and its Application to Bayesian Learning Naoki Hayashi, Sumio Watanabe (TokyoTech) IBISML201738 
In stochastic matrix factorization (SMF), we deal with problems that we predict an observed stochastic matrix as a produ... [more] 
IBISML201738 pp.2330 
PRMU, IBISML, IPSJCVIM [detail] 
20170915 10:30 
Tokyo 

Experimental Analysis of Variational Bayesian Method in Model Selection of Gaussian Mixture Model by Singular Bayesian Information Criterion Naoki Hayashi (Tokyo Tech), Fumito Nakamura (Bosch) PRMU201741 IBISML201713 
A Gaussian mixture model (GMM) is a statistical model used in various fields such a pattern recognition, thus, it is imp... [more] 
PRMU201741 IBISML201713 pp.1926 
MBE, NC (Joint) 
20170313 10:00 
Tokyo 
KikaiShinkoKaikan Bldg. 
Experimental Analysis of Real Log Canonical Threshold in Nonnegative Matrix Factorization Naoki Hayashi, Sumio Watanabe (Tokyo Tech) NC201678 
For the real log canonical threshold ( RLCT ) that gives the Bayesian generalization error of nonnegative matrix factor... [more] 
NC201678 pp.8590 
IBISML 
20161117 14:00 
Kyoto 
Kyoto Univ. 
[Poster Presentation]
A real log canonical threshold of nonnegative matrix factorization and its application to Bayesian learning Naoki Hayashi, Sumio Watanabe (Tokyo Tech) IBISML201676 
In nonnegative matrix factorization(NMF)，we deal with problems that we predict a data matrix as a product of two
nonne... [more] 
IBISML201676 pp.215220 
RCC 
20160129 13:30 
Osaka 
Kansai University Umekita Laboratory 
[Invited Talk]
Distributed Cooperative Control for MultiAgent Systems Naoki Hayashi (Osaka Univ) RCC201590 
Recently, cooperative control of multiagent systems has attracted much attention in control engineering. This paper giv... [more] 
RCC201590 pp.2324 
HCS 
20150317 13:00 
Ishikawa 
Rurikoh (Yamashiro Onsen, Ishikawa) 
Contactivity : a case study of vitalization of Tono city using sustainable cocreation method Masamichi Takahashi, Mihoko Wakui, Ryoji Horita, Naoki Hayashi, Katsunori Kawano (Fuji Xerox) HCS2014110 
We have been conducting a series of a future creating camp, “Mirai Zukuri Camp,” in order to vitalize Tono city in Iwate... [more] 
HCS2014110 pp.16 
CAS, MSS, IPSJAL [detail] 
20141120 16:10 
Okinawa 
Nobumoto Ohama Memorial Hall (Ishigaki island) 
Optimization of Unit Commitment Problem by distributed simplex algorithm Toshiki Asai, Naoki Hayashi, Shigemasa Takai (Osaka Univ.) CAS201496 MSS201460 
The unit commitment problem determines a turnon and turnoff scheduling and outputs of power generating units to meet a... [more] 
CAS201496 MSS201460 pp.7579 