Updated on 2026/10/26

写真a

 
TORII Kotaro
 
Organization
Faculty of Economics Associate Professor
Contact information
The inquiry by e-mail is 《here》
External link

Degree

  • 情報科学博士 ( 北陸先端科学技術大学院大学 )

  • 情報科学修士 ( 北陸先端科学技術大学院大学 )

Education

  • 1997.9
     

    Japan Advanced Institute of Science and Technology   Graduate School, Division of Information Science   doctor course   completed

  • 1994.9
     

    Japan Advanced Institute of Science and Technology   Graduate School, Division of Information Science   master course   completed

  • 1982.3
     

    Chuo University   Faculty of Economics   graduated

Research History

  • 2016.4 - 2017.3

    Washington University in St. Louis   School of Medicine   Research scientist

  • 2011.4 - 2015.3

    松山大学経営学部非常勤講師

  • 2011.4 - 　

    中央大学経済学部准教授

  • 2010.4 - 2011.3

    中央大学経済学部兼任講師

  • 2008.10 - 2011.3

    松山大学経営学部教授

  • 2007.4 - 2010.3

    河原学園愛媛医療専門大学校非常勤講師

  • 2007.4 - 2008.9

    松山大学経営学部准教授

  • 1998.10 - 2007.3

    松山大学経営学部助教授

  • 1998.4 - 1998.9

    松山大学経営学部講師

  • 1997.10 - 1998.3

    北陸先端科学技術大学院大学情報科学研究科知識工学講座助手

  • 1991.4 - 1997.3

    カリタス学園カリタス女子短期大学兼任講師

  • 1993.4 - 1994.3

    小松短期大学非常勤講師

  • 1991.4 - 1992.4

    カリタス学園法人本部会計室職員

  • 1990.4 - 1991.3

    明誠学園共立医療秘書専門学校非常勤講師

  • 1988.4 - 1991.3

    横浜アカデミー総合電子専門学校非常勤講師

  • 1985.7 - 1991.3

    コンピューターシステム設計・開発業

  • 1982.4 - 1985.7

    財団法人日本情報処理開発協会開発部職員

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Professional Memberships

  • 2025.4 - Now

    ACM (Association for Computing Machinery)

  • Journal of the Japanese Society for Artificial Intelligence

  • 情報処理学会

  • 電子情報通信学会

Research Interests

  • Intelligent Informatics

Research Areas

  • Informatics / Intelligent informatics  / 知能情報学

Papers

  • Comparison of Income Inequality Using Ratios of the Mean to the Median as a Disparity Coefficient Reviewed International coauthorship

    Kotaro B Torii, Charles F Zorumski, Yukitoshi Izumi

    Japan Journal of Research   6 ( 2 )   1 - 8   2024.12

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    Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：SciVision Publishers LLC  

    Mean and median values are widely used metrics to characterize various populations, but full attentionhas not been paid to the meaning of differences in these two measures. We hypothesized that the ratioof the mean (m) to the median (M) (m/M) could be useful to detect different patterns of distribution in apopulation. Analyzing household income of the United States, we found strong correlations between them/M ratio and the Gini coefficient over the past 30 years (R2: 0.9472). The Gini coefficient is predictedto be 0.37m/M. A similar tendency was observed in Japan over the same period. Furthermore, there is astrong correlation between these parameters and disposable incomes for 31 Organization for EconomicCo-operation and Development (OECD) and 4 non-OECD nations. Especially for the top half ofcountries in the Gini coefficient, the correlation is very strong (R2: 0.9797 and is predicted to be 0.4m/M-0.13.) Taken together, the m/M ratio may serve as an alternative index to detect social disparitieswhen Gini coefficient is not available. The parameter may be also useful to measure deviations indistributions within populations in other fields of economics and science.

    DOI： 10.33425/2690-8077.1168

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  • 大学におけるデータサイエンス教育への展望

    鳥居鉱太郎

    中央大学経済研究所研究叢書   ( 80 )   107 - 135   2023.3

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    Authorship：Lead author   Language：Japanese   Publishing type：Research paper (bulletin of university, research institution)  

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  • 時間コーディングモデルを用いた多層パーセプトロンの研究

    鳥居鉱太郎

    経済学論纂   61 ( 1 )   201 - 214   2020.7

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    Authorship：Lead author   Language：Japanese   Publishing type：Research paper (bulletin of university, research institution)   Publisher：中央大学  

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  • データ型の可視化を可能とするブロック型プログラミング

    鳥居鉱太郎

    経済学論纂   60 ( 2 )   121 - 134   2019.10

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    Authorship：Lead author   Language：Japanese   Publishing type：Research paper (bulletin of university, research institution)   Publisher：中央大学  

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  • 神経形態学的コンピューターにおける意思決定

    鳥居 鉱太郎

    経済学論纂   56 ( 5・6合併号 )   21 - 30   2016.3

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    Authorship：Lead author   Language：Japanese   Publisher：中央大学  

    CiNii Books

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    Other Link： http://ir.c.chuo-u.ac.jp/repository/search/item/md/rsc/p/9466/

  • 自己組織化におけるモラルの均衡化について

    鳥居 鉱太郎

    経済学論纂   56 ( 1・2合併号 )   39 - 49   2015.12

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    Authorship：Lead author   Language：Japanese   Publisher：中央大学  

    CiNii Books

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    Other Link： http://ir.c.chuo-u.ac.jp/repository/search/item/md/rsc/p/8468/

  • A Study of Multilingual Web Page with Multiple Font

    Kotaro Torii

    THE ANNUAL OF THE INSTITUTE OF ECONOMIC RESEARCH CHUO UNIVERSITY   ( 47 )   373 - 390   2015.11

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    Authorship：Lead author   Language：Japanese   Publisher：THE INSTITUTE OF ECONOMIC RESEARCH CHUO UNIVERSITY  

    CiNii Books

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    Other Link： http://ir.c.chuo-u.ac.jp/repository/search/item/md/rsc/p/8314/

  • About a Way Out of Software Industry by Offshore Migration of COBOL Resource

    Kotaro Torii

    THE ANNUAL OF THE INSTITUTE OF ECONOMIC RESEARCH CHUO UNIVERSITY   ( 46 )   479 - 495   2015.9

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    Authorship：Lead author   Language：Japanese   Publisher：THE INSTITUTE OF ECONOMIC RESEARCH CHUO UNIVERSITY  

    CiNii Books

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    Other Link： http://ir.c.chuo-u.ac.jp/repository/search/item/md/rsc/p/8156/

  • Traveling Salesman Problem in Ohenro

    Koutaro Torii

    Journal of Matsuyama University   23 ( 3 )   89 - 101   2011.8

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    Authorship：Lead author   Language：Japanese   Publisher：松山大学総合研究所  

    CiNii Books

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  • Studies on the classification of ages in the history of pharmacy (II) : Exemplification through the history of pre-scientific utilization of hot spas during the medieval period in Beppu, Oita Prefecture, Japan

    Jun Maki

    Journal of Matsuyama University   23 ( 1 )   143 - 162   2011.4

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    Language：Japanese   Publisher：松山大学総合研究所  

    CiNii Books

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  • About attempt of scientific sports training

    Kotaro Torii, Takeharu Chishaki

    Research Institute Bulletin of Matsuyama University   ( 69 )   1 - 98   2011.3

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    Authorship：Lead author   Language：Japanese   Publisher：松山大学総合研究所  

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  • The effect to the teaching methods of information technology education by industry-university cooperation

    Kotaro Torii

    Journal of Matsuyama University   22 ( 2 )   59 - 89   2010.6

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    Authorship：Lead author   Language：Japanese   Publisher：松山大学総合研究所  

    CiNii Books

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  • The new approach in e-government by multilingual service

    Kotaro Torii

    Matsuyama University journal of language and literature:   28 ( 1 )   23 - 45   2008.9

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    Authorship：Lead author   Language：Japanese   Publisher：松山大学総合研究所  

    CiNii Books

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  • Barrier-free color and color vision properties in Web society

    Kotaro Torii

    Journal of Matsuyama University   20 ( 3 )   63 - 81   2008.8

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    Authorship：Lead author   Language：Japanese   Publisher：松山大学総合研究所  

    CiNii Books

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    Other Link： http://id.nii.ac.jp/1249/00001417/

  • Evidence Based Training: a Data Format for Sports Training Support Systems

    Kotaro Torii

    Journal of Matsuyama University   20 ( 2 )   261 - 276   2008.6

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    Authorship：Lead author   Language：English   Publisher：松山大学総合研究所  

    CiNii Books

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    Other Link： http://id.nii.ac.jp/1249/00001409/

  • The correspondence of the CBT system in IT Skill Standards

    Kotaro Torii

    Journal of Matsuyama University   17 ( 3 )   29 - 46   2005.8

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    Authorship：Lead author   Language：Japanese   Publisher：松山大学総合研究所  

    CiNii Books

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    Other Link： http://id.nii.ac.jp/1249/00001249/

  • Some problems in the information science about the connection between middle and higher education

    Kotaro Torii

    Journal of Matsuyama University   16 ( 6 )   15 - 40   2005.2

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    Authorship：Lead author   Language：Japanese   Publisher：松山大学総合研究所  

    CiNii Books

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    Other Link： http://id.nii.ac.jp/1249/00001205/

  • Generation classification of computers based on usage

    Kotaro Torii

    Journal of Matsuyama University   15 ( 5 )   61 - 79   2003.12

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    Authorship：Lead author   Language：Japanese   Publisher：松山大学総合研究所  

    CiNii Books

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    Other Link： http://id.nii.ac.jp/1249/00001147/

  • Research into the next-generation office computing system for University academic affairs

    Kotaro Torii

    Journal of Matsuyama University   15 ( 4 )   277 - 296   2003.10

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    Authorship：Lead author   Language：Japanese   Publisher：松山大学総合研究所  

    CiNii Books

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    Other Link： http://id.nii.ac.jp/1249/00001130/

  • Study on synaptic model of temporal pattern stimulation Reviewed

    Koutaro Torii, Takashi Kitsukawa, Susumu Kunifuji, Teruo Matsuzawa

    BIOCOMPUTING AND EMERGENT COMPUTATION   251 - 260   1997.9

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    Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：World Scientific  

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  • Quantal Analysis for Hippocampal LTP, Using Noise Deconvolution Reviewed

    Koutaro TORII, Susumu KUNIFUJI, Teruo MATSUZAWA

    Transactions of the Society of Instrument and Control Engineers   33 ( 8 )   812 - 818   1997.8

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    Authorship：Lead author   Language：Japanese   Publishing type：Research paper (scientific journal)   Publisher：計測自動制御学会  

    A quantal analysis method is proposed for the study of long-term potentiation (LTP) in hippocampus. This physiological phenomenon has been a leading candidate for mechanisms underlying the memory and learning function. It has been thought that the quantal analysis of miniature excitatory post-synaptic potentials (mEPSPs) would be able to resolve the long standing question of whether LTP is a pre- or post-synaptic event. In practice, however, the analysis is not always useful since the data are usually corrupted by noise. One approach to circumvent this problem would be the application of the maximum entropy noise deconvolution (MEND) method which actively eliminates the noise. MEND is composed of two elements, a maximum likelihood estimator and a maximum entropy. The former is intended to unmask small peaks in the quantal frequency distribution while the latter has a role of smoothing the estimation result, with a Lagrange-multiplier like parameter controlling the balance between the two functions. Our preliminary study has confirmed the feasibility of MEND is fairly good, but the method wastes a large portion of the available data due to its inadequate integration. MEND has two versions, binned and unbinned ones. The unbinned form is more robust, but there is some problem in the way to remove the bins. The unbinned method presented here is a new unbinned form of MEND devised for the quantal analysis of mEPSP recordings. We have improved the unbinned form with the numerical integration to obtain the integral as accurately as possible. The method is aimed at minimizing the noise effect on the estimation performance without wasting the valuable experimental records. Its usefulness is demonstrated by using synthetic as well as real hippocampul mEPSP data. Furthermore, we had applied the improved method to monosynaptic experimental data. Compared to the conventional statistical methods, it gave better results.

    DOI： 10.9746/sicetr1965.33.812

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  • A SYNAPTIC MODEL BY TEMPORAL CODING Reviewed

    Koutaro Torii, Takashi Kitsukawa, Susumu Kunifuji, Teruo Matsuzawa

    VISION, RECOGNITION, ACTION: NEURAL MODELS OF MIND AND MACHINE   31 - 31   1997.5

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    Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：Boston University  

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  • Quantal analysis during LTP in hippocampal neurons using noise deconvolution Reviewed

    Koutaro Torii, Susumu Kunifuji, Teruo Matsuzawa

    The fourth IBRO world congress of neuroscience   21 - 21   1996.8

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    Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：IBRO  

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Presentations

  • Microlearning Strategy in ICT Education

    Kotaro TORII

    The 32nd International Conference on Computers in Education (ICCE 2024)  2024.11 

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    Event date： 2024.11 　 　

    Language：English   Presentation type：Poster presentation  

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  • リクエスト型映像コンテンツによるゲームマッチングの実践研究

    情報科学技術フォーラム  2013.9 

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    Language：Japanese   Presentation type：Oral presentation (general)  

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  • 携帯電話を用いたスポーツトレーニング支援の試み

    鳥居鉱太郎, 酒井達郎

    教育システム情報学会30周年全国大会講演論文集  2005.8 

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    Language：Japanese   Presentation type：Oral presentation (general)  

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  • 携帯型トレーニング支援システムの開発による科学する体育への実践報告

    鳥居鉱太郎, 酒井達郎

    私立大学情報教育協会16年度全国大学情報教育方法研究発表会  2004.7 

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    Language：Japanese   Presentation type：Oral presentation (general)  

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  • 従来品位画像と高品位画像の脳波での比較評価

    林秀彦, 鳥居鉱太郎, 國藤進, 宮原誠

    電子情報通信学会配パフォーマンスコンピューティング研究会技術報  1999.7 

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    Language：Japanese   Presentation type：Oral presentation (general)  

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  • 初学者を対象とした西暦2000年問題シミュレーションシステムの開発

    鳥居鉱太郎

    私立大学情報教育協会第6回情報教育法研究発表会  1998.7 

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    Language：Japanese   Presentation type：Oral presentation (general)  

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  • 時間パターン刺激による神経可塑性モデルの研究

    鳥居鉱太郎, 木津川尚史, 松沢照男, 國藤進

    電子情報通信学会ニューロコンピューティング研究会信学技報  1997.3 

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    Language：Japanese   Presentation type：Oral presentation (general)  

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  • 小脳プルキンエ細胞・平行線維シナプス伝達における時間パターンコーディング

    鳥居鉱太郎, 木津川尚史, 松沢照男, 國藤進

    日本生物物理学会第34回年会講演予稿集  1996.11 

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    Language：Japanese   Presentation type：Oral presentation (general)  

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  • 海馬シナプスにおける素量解析

    鳥居鉱太郎, 國藤進, 松沢照男

    計測自動制御学会第9回生体・生理工学シンポジウム論文集  1994.11 

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    Language：Japanese   Presentation type：Oral presentation (general)  

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  • 海馬シナプスにおける神経伝達物質の素量解析

    鳥居鉱太郎, 國藤進, 松沢照男

    日本生物物理学会第32回年会講演予稿集  1994.9 

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    Language：Japanese   Presentation type：Oral presentation (general)  

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  • 海馬ニューロンにおける神経伝達物質の素量解析

    鳥居鉱太郎, 國藤進, 松沢照男

    計測自動制御学会第8回生体・生理工学シンポジウム論文集  1993.11 

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    Language：Japanese   Presentation type：Oral presentation (general)  

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  • デコンボルージョンモデルにおける神経伝達物質の素量解析

    鳥居鉱太郎, 松沢照男, 國藤進

    日本生物物理学会第31回年会予稿集  1993.10 

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    Language：Japanese   Presentation type：Oral presentation (general)  

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Works

  • 視覚認知に関するデータ分析

    2012.8 　 　

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Teaching Experience

  • Database

    2021.4 - Now   Institution：Chuo University

  • Seminar of Economy and Information Systems Cluster

    2017.4 - Now   Institution：Chuo University

  • Introductory ICT Seminar

    2017.4 - Now   Institution：Chuo University

  • Information Mathematics

    2010.4 - Now   Institution：Chuo University

  • 情報科学

    2010.4 - Now   Institution：Chuo University

  • AI/Data Science Lecture Series

    2021.4 - 2023.3   Institution：Chuo University

  • コンピューター通論

    Institution：松山大学

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