Takashi Shinzato

J-GLOBAL         Last updated: Oct 31, 2019 at 15:49
 
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Name
Takashi Shinzato
E-mail
shinzatoeng.tamagawa.ac.jp
Mobile mail
takashi.shinzatogmail.com
Affiliation
Tamagawa University
Section
College of Engineering
Degree
Doctor degree of philosophy(Tokyo Institute of Technology), Master degree of science(Nagoya University), Bachelor degree of science(Nagoya University)
Research funding number
70574614
Twitter ID
https://twitter.com/replicamethod
ORCID ID
0000-0001-9719-454X

Research Areas

 
 

Academic & Professional Experience

 
Apr 2017
 - 
Today
Associate Professor, Department of management science, College of engineering, Tamagawa University
 
Oct 2014
 - 
Mar 2017
Lecturer, Hitotsubashi University Mori Arinori Center for Higher Education and Global Mobility
 
Dec 2009
 - 
Sep 2014
Research Associate, Faculty of Systems Science and Technology, Department of Management Science and Engineering, Akita Prefectural University
 
Apr 2009
 - 
Nov 2009
Researcher, Faculty of Systems Science and Technology, Akita Prefectural University
 
Sep 2007
 - 
Mar 2009
Researcher, Global COE, Tokyo Institute of Technology
 
Apr 2008
 - 
Sep 2008
Part-time Lecturer, College of Science and Engineering, Department of Physics and Mathematics, Aoyama Gakuin University
 
Apr 2007
 - 
Aug 2007
Researcher, Grant-in-Aid for Scientific Research on Priority Areas, Tokyo Institute of Technology
 
Apr 2006
 - 
Mar 2007
Teaching Assistant, interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology
 
Apr 2004
 - 
Mar 2005
Teaching Assistant, Graduate School of Science, Nagoya University
 

Education

 
Apr 1998
 - 
Mar 2004
Department of Physics, Faculty of Science, Nagoya University
 
Apr 2006
 - 
Mar 2009
Department of Computational Intelligence and Systems Science, Graduate School, Division of Integrated Science, Tokyo Institute of Technology
 
Apr 2004
 - 
Mar 2006
Division of Material Sciece, Graduate School, Division of Natural Science, Nagoya University
 

Awards & Honors

 
Dec 2018
Upper and Lower Bounds for Reliability of Connected-(1,2)-or-(2,1)-out-of-(m,n):F Lattice System, Best Practice Paper Award, Asia Pacific Industrial Engineering & Management Systems Conference 2018
Winner: Taishin Nakamura, Hisashi Yamamoto, Takashi Shinzato and Tomoaki Akiba
 
Apr 2017
Study of a Method to Evaluate Sorting Task Aptitude in the Process of Producing Food Products, Best paper award, Japan industrial management association
Winner: Yating Yu, Yasuhiro Kajihara, Seiko Taki, Takashi Shinzato
 
Mar 2017
Optimal investment management for institutional investor of risk-averse type using probabilistic optimization, Best research encouragement award, Kampo Foundation
 
Aug 2016
Reliability of a Torus connected-(1,2)-or-(2,1)-out-of-(m,n):F Lattice System Using Markov Chain, Best Paper Award in 7th Asia-Pacific International Symposium on Advanced Reliability and Maintenance Modeling (APARM2016), Asia-Pacific International Symposium on Advanced Reliability and Maintenance Modeling
Winner: Taishin Nakamura, Hisashi yamamoto, Takashi Shinzato, Tomoaki Akiba, Xiao Xiao
 
Mar 2012
Statistical Mechanical Informatics for Portfolio Optimization Problems Including Distinct Variance, Young Researcher Award in The Institute of Electrical and Electronics Engineers (IEEE) Computational Intelligence Society Japan Chapter, The Institute of Electronics, Information and Communication Engineers
Winner: Takashi Shinzato, Ryosuke Wakai, yoshiaki Shimazaki
 
Aug 2011
A Mathematical Model of Product Design through Integral Architecture, Young Scientists's Award in 21st International Conference on Production Research, 21st International Conference on Production Research
Winner: Dongxiao Jiang, Takashi Shinzato, Ikou Kaku and Yong Yin
 

Published Papers

 
Takashi Shinzato
Journal of the Physical Society of Japan   88(6) 064804-064804   May 2019   [Refereed]
Taishin Nakamura, Hisashi Yamamoto, Takashi Shinzato and Tomoaki Akiba
Asia Pacific Industrial Engineering & Management Systems Conference 2018      Dec 2018   [Refereed]
中村 太信, 山本 久志, 新里 隆
電子情報通信学会技術研究報告 = IEICE technical report : 信学技報   118(161) 13-18   Jul 2018
Takashi Shinzato
Journal of the Physical Society of Japan   87(6) 064801   May 2018   [Refereed]
Takashi Shinzato
Journal of Statistical Mechanics: Theory and Experiment   2018 043306   Apr 2018   [Refereed]
Liang Shuyu, Atsuko Fumoto, Yasuhiro Kajihara, Yuya Tabuchi, Takashi Shinzato
J. SOPE Japan   30(1) 9-18   Apr 2018   [Refereed]
Yating Yu, Yashiro Kajihara, Takashi Shinzato and Yukihisa Hayashi
Journal of Japan Industrial Management Association   69(1) 33-45   Apr 2018   [Refereed]
Takashi Shinzato
Journal of Statistical Mechanics: Theory and Experiment   2018 023401   Feb 2018   [Refereed]
Takashi Shinzato
Physica A   490 986-993   Jan 2018   [Refereed]
Yating Yu, Yasuhiro Kajihara, Takashi Shinzato, Yukihisa Hayashi
Journal of Japan Industrial Management Association   69 33-45   Jan 2018
© 2018 Japan Industrial Management Association. All rights reserved. This paper focuses on the measures taken to improve job satisfaction over several years at production bases in a developing nation, and analyzes how the factors of job satisfacti...
Daichi Tada, Takashi Shinzato and Hisashi Yamamoto
Journal of the Physical Society of Japan   86(12) 124804   Dec 2017   [Refereed]
石川 匠, 新里 隆, 中村 太信, 肖 霄, 秋葉 知昭, 山本 久志
電子情報通信学会技術研究報告 = IEICE technical report : 信学技報   117(253) 23-28   Oct 2017
中村 太信, 山本 久志, 新里 隆, 肖 霄, 秋葉 知昭
電子情報通信学会技術研究報告 = IEICE technical report : 信学技報   117(161) 19-24   Jul 2017
Liang Syuyu, Yasuhiro Kajihara, Masanobu Eguchi, Takashi Shinzato, Kazutoshi Hirata, Erica Kawasaki
Journal of Japan Industrial Management Association   68(2E) 128-138   Jul 2017   [Refereed]
Takashi Shinzato
Journal of the Physical Society of Japan   86(6) -063802   May 2017   [Refereed]
Taishin Nakamura, Hisashi Yamamoto, Takashi Shinzato, Xiao Xiao, Tomoaki Akiba
the Institute of Electronics, Information and Communication Engineers   E100-A(4) 1029-1036   Apr 2017   [Refereed]
Takashi Shinzato
Journal of Statistical Mechanics: Theory and Experiment   2017 023301   Feb 2017   [Refereed]
Taishin Nakamura,Hisashi Yamamoto,Takashi Shinzato,Xiao Xiao 0002,Tomoaki Akiba
IEICE Transactions   100-A(4) 1029-1036   2017   [Refereed]
Takashi Shinzato
Physical Review E   94(6) 062102   Dec 2016   [Refereed]
The portfolio optimization problem in which the variances of the return rates of assets are not identical is analyzed in this paper using the methodology of statistical mechanical informatics, specifically, replica analysis. We defined two charact...
Takashi Shinzato
Japan Institute of Life Insurance Journal   (197) 75-90   Dec 2016
Taishin Nakamura, Hisashi Yamamoto, Takashi Shinzato, Tomoaki Akiba and Xiao Xiao
The 3rd East Asia Workshop on Industrial Engineering (EAWIE2016)      Dec 2016   [Refereed]
Takashi Shinzato
Physical Review E   94(5) 052307   Nov 2016   [Refereed]
In the present paper, the primal-dual problem consisting of the investment risk minimization problem and the expected return maximization problem in the mean-variance model is discussed using replica analysis. As a natural extension of the investm...
Yu Yating, Yasuhiko Kajihara, Seiko Taki, Takashi Shinzato
Journal of Japan Industrial Management Association   67(3) 242-251   Nov 2016   [Refereed]
石川 匠, 新里 隆, 中村 太信, 肖 霄, 秋葉 知昭, 山本 久志
電子情報通信学会技術研究報告 = IEICE technical report : 信学技報   116(260) 25-29   Oct 2016
Taishin Nakamura, Takashi Shinzato, Tomoaki Akiba, Xiao Xiao, Hisashi Yamamoto
The 7th Asia-Pacific International Symposium on Advanced Reliability and Maintenance Modeling (APARM 2016)   7 -90   Aug 2016   [Refereed]
Takashi Shinzato
Japanese Association of Financial Econometrics and Engineering   -90   Aug 2016
Takumi Ishikawa, Takashi Shinzato, Taishin Nakamura, Hisashi Yamamoto
The 7th Asia-Pacific International Symposium on Advanced Reliability and Maintenance Modeling (APARM 2016)   7 -90   Aug 2016   [Refereed]
中村 太信, 山本 久志, 新里 隆, 肖 霄
電子情報通信学会技術研究報告 = IEICE technical report : 信学技報   116(69) 13-18   May 2016
YATING Yu, KAJIHARA Yasuhiro, TAKI Seiko, SHINZATO Takashi
J. Jpn . Ind. Manage. Assoc.   67(3) 242-251   Jan 2016
This paper applies virtual reality technology to propose a method of easily estimating sorting task aptitude. For the analysis of a sorting task, a task analysis apparatus to which actual equipment and virtual reality technology are applied was pr...
Takashi Shinzato,Ikou Kaku,Kei Kobayashi
2015 Asian Conference of Management Science and Applications   -90   Sep 2015   [Refereed]
Takashi Shinzato, Muneki Yasuda
PLoS ONE   10(8) e0134968   Aug 2015   [Refereed]
The typical behavior of optimal solutions to portfolio optimization problems with absolute deviation and expected shortfall models using replica analysis was
pioneeringly estimated by S. Ciliberti et al. [Eur. Phys. B. 57, 175 (2007)]; however, th...
Takashi Shinzato
PLoS ONE   10(7) e0133846-90   Jul 2015   [Refereed]
In portfolio optimization problems, the minimum expected investment risk is not always smaller than the expected minimal investment risk. That is, using a well-known approach from operations research, it is possible to derive a strategy that minim...
Takashi Shinzato
RIMS Kokyuroku, Kyoto University   1912 26-34   Aug 2014
Wakai Ryosuke, Shinzato Takashi, Shimazaki Yoshiaki
J. Jpn . Ind. Manage. Assoc.   65(1) 17-28   Jan 2014
This paper analyzes typical performance of the optimal portfolio of the meanvariance model using a random matrix approach, one of the most potent methods in the econophysics literature. In the analysis, indicators representing the risk and the con...
Jiang Dongxiao, Shinzato Takashi, Hoshino Mitsuhiro, Zhang Renqian, Kaku Ikou
J. Jpn . Ind. Manage. Assoc.   65(1) 9-16   Jan 2014
In past decades, methods such as quality function deployment (QFD) and the design structure matrix (DSM) have been adopted for quantitative evaluation of product design. QFD involves ideal product design that holds the maximum overall impact value...
長嶋 利治, 新里 隆, 郭 偉宏
日本経営工学会論文誌 = Journal of Japan Industrial Management Association   64(4) 557-560   Jan 2014
Dongxiao Jiang, Takashi Shinzato, Mitsuhiro Hoshino, Ikou Kaku
2013 Asian Conference of Management Science and Applications   -90   Dec 2013   [Refereed]
SHINZATO Takashi
電子情報通信学会技術研究報告 = IEICE technical report : 信学技報   113(286) 91-98   Nov 2013
This paper is to analyze the typical performance of Sharpe ratio of risk minimization problem which is one of the most fundamental problems in financial engineering using replica analysis. Since two constraints, held budget and expected returns, a...
Ikou Kaku, Dongxiao Jiang, Takashi Shinzato, Mitsuhiro Hoshino, Y. Yin and Yang Yu
International Symposium on Reliability Engineering and Risk Management   -90   Nov 2012   [Refereed]
Christian Crowley, Kazushi Ito, Shuhei Kudo, Yoshiaki Shimazaki and Takashi Shinzato
82nd Annual Meeting, Southern Economic Association   -90   Nov 2012   [Refereed]
SHINZATO Takashi
電子情報通信学会技術研究報告. IBISML, 情報論的学習理論と機械学習 = IEICE technical report. IBISML, Information-based induction sciences and machine learning   112(279) 327-334   Oct 2012
The present paper is to analyze the portfolio optimization problem under the assumption which each asset may be correlated with one another and the multiple constraint conditions with respect to portfolio position are presented by using the approa...
Dongxiao Jiang, Takashi Shinzato, Hiroshi Sugiyama, Mitsuhiro Hoshino, Yang Yu and Ikou Kaku
11th International Conference on Industrial Management   -90   Aug 2012   [Refereed]
SHINZATO Takashi
電子情報通信学会技術研究報告 : 信学技報   111(275) 11-18   Nov 2011
As one of the most important property of random matrix ensemble, the asymptotic eigenvalue distribution of autocorrelation matrix which is defined by random rectangular matrix with non-identical variance components is analyzed by using replica ana...
Christian Crowley, Kazuhiko Hoshizaki, Takashi Masaki, Yoshiaki Shimazaki and Takashi Shinzato
81st Annual Meeting, Southern Economic Association   -90   Nov 2011   [Refereed]
Ikou Kaku, Dongxiao Jiang and Takashi Shinzato
Innovative Computing, Information and Control Express Letters, An International Journal of Research and Surveys   5(5) 1709-1716   Nov 2011   [Refereed]
Takashi Shinzato, Ikou Kaku
Journal of Japan Industrial Management Association   62 164-173   Oct 2011
Measuring the optimal safety stock quantity for demand is one of the most significant issues in inventory management. However, it has not been mathematically guaranteed that it is possible to determine the optimal safety stock quantity for correla...
Dongxiao Jiang, Takashi Shinzato, Ikou Kaku and Yong Yin
21st International Conference on Production Research   -90   Aug 2011   [Refereed]
SHINZATO Takashi, WAKAI Ryosuke, SHIMAZAKI Yoshiaki
IEICE technical report   111(96) 125-130   Jun 2011
This study analyzes the portfolio optimization problem under the assumption of non-identical variance for each asset return, using the approach based on statistical mechanical informatics. Particularly we define two indicators for risk and dispers...
Ikou Kaku, Dongxiao Jiang, Takashi Shinzato
ICIC Express Letters   5 1709-1716   May 2011
This paper presents a mathematical model to cooperate integrity into product design process. We define a function-function matrix to show the revenues of involving interfaces, and an interface-interface matrix to show the coefficients influencing ...
SHINZATO Takashi
IEICE technical report   110(461) 23-28   Feb 2011
Developing the approach based on statistical mechanical informatics for portfolio optimization problem is one of the latest researching issues in cross-disciplinary fields including information theory, combinational optimization and statistical me...
SHINZATO Takashi
経営システム = Management systems : a journal of Japan Industrial Management Association   20(6) 339-340   Feb 2011
TAKEMOTO Yasuhiko, SHINZATO Takashi
Communications of JIMA   20(6) 304-307   Feb 2011
D. Jiang, T. Shinzato, I. Kaku, Y. Yin
21st International Conference on Production Research: Innovation in Product and Production, ICPR 2011 - Conference Proceedings      Jan 2011
This paper presents a mathematical model to cooperate integrity into product design process. The proposed model is characterized by using the single cost of interface and the correlation cost among distinct interfaces where these costs are obtaine...
SHINZATO Takashi, KAKU Ikou
J. Jpn . Ind. Manage. Assoc.   62(4) 164-173   2011
Measuring the optimal safety stock quantity for demand is one of the most significant issues in inventory management. However, it has not been mathematically guaranteed that it is possible to determine the optimal safety stock quantity for correla...
SHINZATO Takashi, YASUDA Muneki
IEICE technical report   110(265) 257-263   Oct 2010
The typical behavior of optimal solutions to portfolio optimization problems with absolute deviation and expected shortfall models using replica analysis was pioneeringly estimated by S. Ciliberti and M. Mezard, however, they have not yet develope...
Takashi Shinzato et. al
ISUNA science, Communications of APU   5 2-3   Jan 2010
Takashi Shinzato,Muneki Yasuda
CoRR   abs/1008.3746    2010   [Refereed]
Takashi Shinzato and Yoshiyuki Kabashima
Journal of Physics A   42(1) 015005-90   Jan 2009   [Refereed]
Learning behavior of simple perceptrons is analyzed for a teacher–student scenario in which output labels are provided by a teacher network for a set of possibly correlated input patterns, and such that the teacher and student networks are of the ...
Takashi Shinzato and Yoshiyuki Kabashima
Proceedings of Subsociety of Information Theory and its Applications   349-354   Dec 2008
Takashi Shinzato and Yoshiyuki Kabashima
Journal of Physics A   41(32) 324013-90   Sep 2008   [Refereed]
In this paper, we address the problem of how many randomly labeled patterns can be correctly classified by a single-layer perceptron when the patterns are correlated with each other. In order to solve this problem, two analytical schemes are devel...
Takashi Shinzato and Yoshiyuki Kabashima
Proceedings of Information Based Induction Sciences   55-60   Nov 2007
Takashi Shinzato and Yoshiyuki Kabashima
Proceedings of Information Based induction Sciences   238-243   Nov 2006

Misc

 
Takashi Shinzato
   Jan 2017
Deriving the optimal safety stock quantity with which to meet customer
satisfaction is one of the most important topics in stock management. However,
it is difficult to control the stock management of correlated marketable
merchandise when using a...
Takashi Shinzato, Kei Kobayashi, Ikou Kaku
-90   Jul 2016   [Refereed]
Makespan, which is defined as the time difference between the starting time
and the terminate time of a sequence of jobs or tasks, as the time to traverse
a belt conveyor system, is well known as one of the most important criteria in
scheduling pr...
Takashi Shinzato
arXiv   abs/1606.07277    Jun 2016   [Refereed]
We discuss replica analytic continuation using several simple models in order
to prove mathematically the validity of replica analysis, which is used in a
wide range of fields related to large scale complex systems. While replica
analysis consists...
Takashi Shinzato
arXiv      May 2016
In the present work, eigenvalue distributions defined by a random rectangular
matrix whose components are neither independently nor identically distributed
are analyzed using replica analysis and belief propagation. In particular, we
consider the ...

Books etc

 
Proposal of calculation method for the toroidal connected-(1, 2)-or-(2, 1)-out-of-(m, n):F lattice system with Markov chain
Taishin Nakamura, Hisashi Yamamoto, Takashi Shinzato, Tomoaki Akiba, Xiao Xiao (Part:Joint Work)
Jul 2017   
Ikou Kaku, Takashi Shinzato, et. al (Part:Joint Work)
Yokohama Publisher   Apr 2011   ISBN:4946552421
Atsushi Koma, Takashi Shinzato, et.al (Part:Joint Work)
The Akita Sakigake   Apr 2013   ISBN:4870203421

Conference Activities & Talks

 
Shinzato T.
Meeting Abstracts of the Physical Society of Japan   2011   
Shinzato T.
Meeting Abstracts of the Physical Society of Japan   2011   
Shinzato T., Sasaki N., Kaku I.
Meeting Abstracts of the Physical Society of Japan   2010   
Shinzato T., Yasuda M.
Meeting Abstracts of the Physical Society of Japan   2010   

Research Grants & Projects

 
Kampo foundation: Joint Research(Domestic joint research)
Project Year: Jul 2017 - Mar 2018    Investigator(s): Takashi Shinzato
Kyoto university institute of economic research foundation: Joint Research(Domestic joint research)
Project Year: Jul 2017 - Mar 2018    Investigator(s): SHINZATO Takashi
The Mitsubishi UFJ Trust Scholarship Foundation: Joint Research(Domestic joint research)
Project Year: Apr 2016 - Mar 2017    Investigator(s): Takashi Shinzato
Japan Society for the Promotion of Science: Grants-in-Aid for Scientific Research
Project Year: Apr 2015 - Mar 2017    Investigator(s): Takashi Shinzato
Kampo foundation: Joint Research(Domestic joint research)
Project Year: Jul 2015 - Jun 2016    Investigator(s): Takashi Shinzato
Japan Institute of Life Insurance: Joint Research(Domestic joint research)
Project Year: Jul 2015 - Mar 2016    Investigator(s): Takashi Shinzato
Kyoto university institute of economic research foundation: Joint Research(Domestic joint research)
Project Year: Jul 2015 - Mar 2016    Investigator(s): Takashi Shinzato
The institute of statistical mathematics: Joint Research(Domestic joint research)
Project Year: Apr 2015 - Mar 2016    Investigator(s): Kei Kobayashi
Grant-in-aid from Zengin Foundation for Studies on Economics and Finance: Joint Research(Domestic joint research)
Project Year: Dec 2014 - Mar 2016    Investigator(s): Takashi Shinzato
Ministry of Agriculture: Joint Research(Domestic joint research)
Project Year: Apr 2014 - Mar 2016    Investigator(s): Hideyuki Mochida
Akita prefectural university: Joint Research(Joint research within the school)
Project Year: Jul 2014 - Mar 2015    Investigator(s): Takashi Shinzato
National institute of informatics: Joint Research(Domestic joint research)
Project Year: Apr 2014 - Mar 2015    Investigator(s): Takashi Shinzato
Japan Society for the Promotion of Science: Grants-in-Aid for Scientific Research
Project Year: Apr 2012 - Mar 2014    Investigator(s): Takashi Shinzato
Honjo Yuri industrial promotion foundation of science and technology: Joint Research(Domestic joint research)
Project Year: Apr 2012 - Mar 2013    Investigator(s): Yoshiaki Shimazaki