Detailed Information

Research Field/Keywords for Research Field

• traffic flow, academic information systems, unified authentication systems

Education

• 1982/03, Departmentn of Physics, Graduated
• 1984/03, Master Course, Completed
• 1987/04, Doctor Course, Completed

Employment Experience

• 1988/04 - 1990/03 Postdoctoral Fellowships of Japan Society for the Promotion of Science Kyoto University
• 1990/04 - 2000/03 Associate Professor, Saga University
• 2000/04 - 2000/09 Professor, Information Science, Faculty of Science and Engineering, Saga University
• 2000/10 - 2006/01 Professor, Saga University
• 2000/11 - 2006/01 Abolition organization, Saga University
• 2006/02 - 2013/09 Professor, Computer and Network Center, Saga University
• 2006/04 - 2014/03 Computer and Network Center, Saga University
• 2013/10 -  *  Professor, Information Science, Graduate School of Science and Engineering, Saga University

Field of Specialization

• Mathematical physics/Fundamental condensed matter physics, Civil engineering project/Traffic engineering, Statistical science, Information network, Information security

Membership in Academic Societies

• Physical Society of Japan, American Physical Society, Japan Society for Industrial and Applied Mathematics, Information Processing Society of Japan

Awards

• New Journal of Physics, Best of 2008 （2009/01）

Themes for Ongoing Research

• Quantum Field Theory in curved spacetime
• Experimental study of traffic jam formation
• Integrated Authentication System
• Thermodynamics of systems with a black hole
• Intelligent Tutoring System
• Traffic Flow Models and Their Simulations
• User Network System
• Time Series Analysis of Traffic Flow

Research Themes in the Past

• Quantum Field Theory in curved spacetime
• Thermodynamics of systems with a black hole
• Intelligent Tutoring System

Research Topics and Results

• Characterizing and distinguishing free and jammed traffic flows from the distribution and correlation of experimental speed data 2016/08
• Quantitative explanation of circuit experiments and real traffic using the optimal velocity model 2016/04
• Phase transition in traffic jam experiment on a circuit 2013/10
• Effects of Fast Noises on Long-Range Correlations 2011/01
• Metastability in the formation of an experimental traffic jam 2009/08
• Traffic jam without bottleneck - Experimental evidence for the physical mechanism of forming a jam - 2008/03
• Long-term power-law fluctuation in Internet traffic 2007/04
• Power-Law Fluctuation in Expressway Traffic Flow: Detrended Fluctuation Analysis 2006/03
• Implementation and Operation of Large Scale Network for Users' Mobile Computers by Opengate 2005/04
• An Authentication System for Public and Mobile Terminals and Its Operation with Discless Boot Mechanism 2001
• Coupled Map Traffic Flow Simulator Based on Optimal Velocity Functions 1998
• Jam Phases in a Two-Dimensional Cellular Automaton Model of Traffic Flow 1994
• Hadamard Regularization and Conformal Transformation 1989

Books

• Fundamentals of numerical simulations;　2000
  ANNOUNCEMENT INFO.;　
  AUTHOR;　
  

Original Articles

• Named Entities Extraction by Citizen Participation and Machine Learning for Making Machine-readable Old Records of the Edo Period Remaining in Local Communities;　2022/02
  ANNOUNCEMENT INFO.;　Information Processing Society of Japan Journal, 63, 2, 310 - 323
  AUTHOR;　Natsuko Yoshiga, Yoshiaki Hor, Shin-ichi Tadaki, Kiyonori Nagasaki, and Akihiro Ito
  
• Origins of Reverse Lane Usage Using Nagel–Schreckenberg Model;　2019/02
  ANNOUNCEMENT INFO.;　Journal of the Physical Society of Japan, 88, 024801
  AUTHOR;　Toshihiro Noda, Yasuhiro Hieida, and Shin-ichi Tadaki
  
• Semi-automated Conversion of Bibliographic Data for Japanese Historical Rare Books into Linked Data;　2018/02
  ANNOUNCEMENT INFO.;　Transactions of Information Processing Society of Japan, 59, 2, 257 -266
  AUTHOR;　Natsuko Yoshiga and Shin-ichi Tadaki
  
• Scaling from Circuit Experiment to Real Traffic Based on Optimal Velocity Model;　2016/12
  ANNOUNCEMENT INFO.;　Traffic and Granular Flow '15, 523-530
  AUTHOR;　Akihiro Nakayama, Macoto Kikuchi, Akihiro Shibata, Yuki Sugiyama, Shin-ichi Tadaki and Satoshi Yukawa
  
• Characterizing and distinguishing free and jammed traffic flows from the distribution and correlation of experimental speed data;　2016/08
  ANNOUNCEMENT INFO.;　New Journal of Physics, 18, 083022
  AUTHOR;　Shin-ichi Tadaki, Macoto Kikuchi, Akihiro Nakayama, Akihiro Shibata, Yuki Sugiyama and Satoshi Yukawa
  
• Quantitative explanation of circuit experiments and real traffic using the optimal velocity model;　2016/04
  ANNOUNCEMENT INFO.;　New Journal of Physics, 18, 043040
  AUTHOR;　Akihiro Nakayama, Macoto Kikuchi, Akihiro Shibata, Yuki Sugiyama, Shin-ichi Tadaki and Satoshi Yukawa
  
• Critical Density of Experimental Traffic Jam;　2015/01
  ANNOUNCEMENT INFO.;　Traffic and Granular Flow '13, 505
  AUTHOR;　S. Tadaki, M. Kikuchi, M. Fukui, A. Nakayama, K. Nishinari, A. Shibata, Y. Sugiyama, T. Yosida and S. Yukawa.
  
• Phase transition in traffic jam experiment on a circuit;　2013/10
  ANNOUNCEMENT INFO.;　New Journal of Physics, 15, 103034
  AUTHOR;　Shin-ichi Tadaki, Macoto Kikuchi, Minoru Fukui, Akihiro Nakayama, Katsuhiro Nishinari, Akihiro Shibata, Yuki Sugiyama, Taturu Yosida and Satoshi Yukawa
  
• Fluctuation in e-mail sizes weakens power-law correlations in e-mail flow;　2013/09
  ANNOUNCEMENT INFO.;　The European Physical Journal B, 86, 9, 371
  AUTHOR;　Yoshitsugu Matsubara, Yasuhiro Hieida and Shin-ichi Tadaki
  
• Effects of Fast Noises on Long-Range Correlations;　2011/01
  ANNOUNCEMENT INFO.;　Computer Physics Communications, 182, 1, 237-239
  AUTHOR;　Shin-ichi TADAKI
  
• Development of the Network User Authentication System Supporting Single Sign-On;　2010/03
  ANNOUNCEMENT INFO.;　IPSJ Journal, 51, 3, 1031-1039
  AUTHOR;　M. Otani, H. Eto, K. Watanabe, S. Tadaki and Y. Watanabe
  
• Metastability in the formation of an experimental traffic jam;　2009/08
  ANNOUNCEMENT INFO.;　New Journal of Physics, 11, 083025 1-083025 16
  AUTHOR;　Akihiro Nakayama, Minoru Fukui, Macoto Kikuchi, Katsuya Hasebe, Katsuhiro Nishinari, Yuki Sugiyama, Shin-ichi Tadaki and Satoshi Yukawa
  
• Detailed data of traffic jam experiment;　2009/05
  ANNOUNCEMENT INFO.;　Traffic and Granular Flow '07 (Springer-Verlag, Berlin), 389-394
  AUTHOR;　A. Nakayama, M. Fukui, K. Hasebe, M. Kikuchi, K. Nishinari, Y. Sugiyama, S. Tadaki and S. Yukawa
  
• Packet flow and its temporal properties in the Internet;　2009/05
  ANNOUNCEMENT INFO.;　Traffic and Granular Flow '07 (Springer-Verlag, Berlin), 745-750
  AUTHOR;　S. Tadaki
  
• "Error-based translation" as a new approach in learning Japanese particles for Indonesians;　2009/05
  ANNOUNCEMENT INFO.;　Journal of Information and Systems in Education, 7, 1, 15-25
  AUTHOR;　Saida Ulfa, Y. Okazaki, Y. Hieida, T. Hayashi, K. Watanabe and S. Tadaki
  
• Development and Smooth Installation of a Network Authentication System with Detecting Usave Termination by Watching HTTP Connection;　2009/03
  ANNOUNCEMENT INFO.;　IPSJ Journal, 50, 3, 1032-1042
  AUTHOR;　M. Otani, H. Eto, K. Watanabe, S. Tadaki and Y. Watanabe
  
• Single Sign-On with Opengate;　2009/02
  ANNOUNCEMENT INFO.;　IPSJ SIG Technical Reports, 2009, 21, 259264
  AUTHOR;　ETO Hirofumi;OTANI Makoto;WATANABE Kenzi;TADAKI Shin-ichi
  
• Traffic jam without bottleneck - Experimental evidence for the physical mechanism of forming a jam -;　2008/03
  ANNOUNCEMENT INFO.;　New Journal of Physics, 10, 033001 1-7
  AUTHOR;　Y. Sugiyama, M. Fukui, M. Kikuchi, K. Hasebe, A. Nakayama, K. Nishinari, S. Tadaki and S. Yukawa
  
• An Intelligent Tutoring System with Error Based Translation in Learning Japanese Particles for Indonesians;　2007/07
  ANNOUNCEMENT INFO.;　8th International Conference on Information Technology Based Higher Education and Training, Kumamoto, Japan
  AUTHOR;　Saida Ulfa, Yasuhisa Okazaki, Yasuhiro Hieida, Toshihiro Hayashi, Kenzi Watanabe, Shin-ichi Tadaki
  
• Long-term power-law fluctuation in Internet traffic;　2007/04
  ANNOUNCEMENT INFO.;　Journal of Physical Society of Japan, 76, 4, 044001-1- 044001-5
  AUTHOR;　S. Tadaki
  
• Scale-free features in the observed traffic flow;　2007
  ANNOUNCEMENT INFO.;　Traffic and Granular Flow '05 (Springer-Verlag, Berlin ), 706-709
  AUTHOR;　S. Tadaki, M. Kikuchi, A. Nakayama, K. Nishinari, A. Shibata, Y. Sugiyama and S. Yukawa
  
• Effects of Bottlenecks on Vehicle Traffic;　2006/11
  ANNOUNCEMENT INFO.;　Journal of the Physical Society of Japan, 75, 11, 114601-1- 114601-5
  AUTHOR;　Syohei Yamamoto, Yasuhiro Hieida and Shin-ichi Tadaki
  
• Power-Law Fluctuation in Expressway Traffic Flow: Detrended Fluctuation Analysis;　2006/03
  ANNOUNCEMENT INFO.;　JOURNAL- PHYSICAL SOCIETY OF JAPAN, 75, 3, 034002-1-034002-5
  AUTHOR;　Tadaki, S / Kikuchi, M / Nakayama, A / Nishinari, K / Shibata, A / Sugiyama, Y / Yukawa, S
  
• Implementation of IPv6 Functions for a Network User Authentication System Opengate;　2005/11
  ANNOUNCEMENT INFO.;　ACM SIGUCCS 2005 Fall Conference (held in Monterey, California, November 6 - 9, 2005), 283-286
  AUTHOR;　Makoto Otani, Katsuhiko Eguchi, Hirofumi Eto, Kenzi Watanabe, Shin-ichi Tadaki and Yoshiaki Watanabe
  
• Implementation and Operation of Large Scale Network for Users' Mobile Computers by Opengate;　2005/04
  ANNOUNCEMENT INFO.;　PSJ Journal, 46, 4, 922-929
  AUTHOR;　S. Tadaki, H. Eto, K. Watanabe and Y. Watanabe
  
• Observation, Theory and Experiment for Freeway Traffic as Physics of Many-Body System;　2005
  ANNOUNCEMENT INFO.;　Traffic and Granular Flow '03 (Springer-Verlag, Berlin, 45-58
  AUTHOR;　Y. Sugiyama, A. Nakayama, M. Fukui, K. Hasebe, M. Kikuchi, K. Nishinari, S. Tadaki and S. Yukawa
  
• Fluctuation in Experssway Traffic Flow;　2005
  ANNOUNCEMENT INFO.;　Traffic and Granular Flow '03 (Springer-Verlag, Berlin, 59-65
  AUTHOR;　S. Tadaki, M. Kikuchi, A. Nakayama, K. Nishinari, A. Shibata, Y. Sugiyama and S. Yukawa
  
• Application of the "Opengate" System to Public Terminals;　2004/09
  ANNOUNCEMENT INFO.;　Journal for Academic Computing and Networking, 8, 9-16
  AUTHOR;　S. Yasuda, H. Hanaishi, H. Eto, S. Tadaki, K. Watanabe and Y. Watanabe
  
• Stable Service of Educational Windows Terminals with Diskless Boot Mechanism;　2004/01
  ANNOUNCEMENT INFO.;　IPSJ JOURNAL, 45, 1, 2-11
  AUTHOR;　H. Eto, Y. Tanaka, Y. Matsubara, K. Wtanabe, Y. Watanabe and S. Tadaki
  
• Network Operation for User Mobile Terminals;　2004/01
  ANNOUNCEMENT INFO.;　IPSJ Symposium Series, 2004, 3, 85-90
  AUTHOR;　S. Tadaki, H. Eto, K. Watanabe and Y. Watanabe
  
• Traffic Flow as Physics of Many-Body System;　2004
  ANNOUNCEMENT INFO.;　Transportation Systems 2003, Proceedings of the 10th IFAC Symposium (Elsevier), 335-340
  AUTHOR;　Y. Sugiyama, M. Kikuchi, A. Nakayama, A. Nishinari, K. Shibata, S. Tadaki and S. Yukawa
  
• Formation of Synchronized Flow at the Upper Stream of Bottleneck in Optimal Velocity Model;　2004
  ANNOUNCEMENT INFO.;　Transportation Systems 2003, Proceedings of the 10th IFAC Symposium (Elsevier), 347-351
  AUTHOR;　M. Kikuchi, Y. Sugiyama, S. Tadaki and S. Yukawa
  
• Asymmetric Optimal Velocity Model;　2003/11
  ANNOUNCEMENT INFO.;　Journal of Physical Society of Japan, 72, 11, 2754-2758
  AUTHOR;　A. Okumura and S. Tadaki
  
• Strategies for Migrating to IPv6 in Saga University;　2003/06
  ANNOUNCEMENT INFO.;　IPSJ Symposium Series , 2003, 9, 713-716
  AUTHOR;　Ferry A. S., H. Eto, M. Otani, K. Watanabe and S. Tadaki
  
• Integrated Authentication System as a Base of Campus Information Infrastructure;　2003/01
  ANNOUNCEMENT INFO.;　IPSJ Symposium Series , 2003, 6, 43-48
  AUTHOR;　H. Etoh, K. Watanabe, S. Tadaki and Y. Watanabe
  
• Observational Aspects of Japanese Highway Traffic;　2003
  ANNOUNCEMENT INFO.;　Traffic and Granular Flow '01 (Springer-Verlag, 2003), 243-256
  AUTHOR;　S. Yukawa, M. Kikuchi, A. Nakayama, K. Nishinari, Y. Sugiyama and S. Tadaki
  
• Long-Term Traffic Data from Japanese Expressway;　2003
  ANNOUNCEMENT INFO.;　Traffic and Granular Flow '01 (Springer-Verlag, 2003), 257-262
  AUTHOR;　M. Kikuchi, A. Nakayama, K. Nishinari, Y. Sugiyama, S. Tadaki and S. Yukawa
  
• Congestion Induced by Bottlenecks in Two-lane Optimal Velocity Traffic Flow Model;　2003
  ANNOUNCEMENT INFO.;　Traffic and Granular Flow '01 (Springer-Verlag, 2003), 211-220
  AUTHOR;　S. Tadaki, M. Kikuchi, K. Nishinari, Y. Sugiyama and S. Yukawa
  
• Asymmetric Optimal Velocity Model;　2003
  ANNOUNCEMENT INFO.;　Traffic and Granular Flow '01 (Springer-Verlag, 2003), 115-118
  AUTHOR;　A. Okumura and S. Tadaki
  
• Analysis of congested flow at the upper stream of a tunnel;　2002/11
  ANNOUNCEMENT INFO.;　Physica A Vol.315 No.1-2 (2002) 156-162, 315, 1-2, 156-162
  AUTHOR;　S. Tadaki, K. Nishinari, M. Kikuchi, Y. Sugiyama and S. Yukawa
  
• Traffic Flow Data on Expressways and Two Lane Traffic Flow Model;　2002/06
  ANNOUNCEMENT INFO.;　Bull. Japan Soc. Indust. Appl. Math., 12, 2, 17-25
  AUTHOR;　S. Tadaki
  
• 新しい教育情報基盤の実現に向けて～認証システムをベースとしてキャンパス規模のオープンネットワーク～;　2002
  ANNOUNCEMENT INFO.;　J. Acad. Comp. Net. , 6, 13-20
  AUTHOR;　
  
• Observation of Congested Two-lane Traffic Caused by a Tunnel;　2002
  ANNOUNCEMENT INFO.;　JOURNAL- PHYSICAL SOCIETY OF JAPAN, 71, 9, 2326-2334
  AUTHOR;　Tadaki, S.-i / Nishinari, K / Kikuchi, M / Sugiyama, Y / Yukawa, S
  
• An Authentication System for Public and Mobile Terminals and Its Operation with Discless Boot Mechanism;　2001
  ANNOUNCEMENT INFO.;　J. Acad. Comp. Net., 5, 15-20
  AUTHOR;　S. Tadaki, H. Eto, K. Watanabe and Y. Yatanabe
  
• n User Authentication Gateway System with Simple User Interface, Low Administration Cost and Wide Applicability;　2001
  ANNOUNCEMENT INFO.;　IPSJ Journal, 42, 12, 2802-2809
  AUTHOR;　Y. Watanabe, K. Watanabe, H. Eto and S. Tadaki
  
• Congested Flow Induced by Noise in Headway Measurements;　2001
  ANNOUNCEMENT INFO.;　JOURNAL- PHYSICAL SOCIETY OF JAPAN, 70, 6, 1842-1848
  AUTHOR;　Uchida, T / Tadaki, S.-i
  
• IMAP に対応した Web ベースメールクライアントWebMailerの開発;　2000
  ANNOUNCEMENT INFO.;　J. Acad. Comp. Net. , 4, 35-43
  AUTHOR;　K. Watanabe, A. Takada and S. Tadaki
  
• Noise Induced Congestion in Coupled map Optimal Velocity Model of Traffic Flow;　2000
  ANNOUNCEMENT INFO.;　Y. Suzuki et al ed. Soft Computing in Industrial Applications (Springer, London), 383-391
  AUTHOR;　S. Tadaki, M. Kikuchi, Y. Sugiyama and S. Yukawa
  
• A universal e-mail environment - WebMailer : Web based e-mail client software supporting IMAP4 Protocol;　2000
  ANNOUNCEMENT INFO.;　Proc. International ICSC Symposium on Interactive and Collaborative Computing (ICC'2000) (2000)
  AUTHOR;　K. Watanabe, A. Takeda and S. Tadaki
  
• Congestion in multi-lane coupled map traffic flow model;　2000
  ANNOUNCEMENT INFO.;　M. Tokuyama and H. E. Stanley ed. Statistical Physics (AIP, 2000)
  AUTHOR;　M. Kikuchi, Y. Sugiyama, S. Tadaki and S. Yukawa
  
• Asymmetric Optimal Velocity Model for Traffic Flow;　2000
  ANNOUNCEMENT INFO.;　Y. Hiwatari, Y. Oyanagi, Y. Okabe and H. Takayama ed. Proceedings of The 5th International Conference on Computational Physics (Progress of Theoretical Physics Supplement No.138) (2000)
  AUTHOR;　M. Kikuchi, Y. Sugiyama, S. Tadaki and S. Yukawa
  
• Congestion in Multi-lane Roads with Coupled Map Traffic Flow Model;　2000
  ANNOUNCEMENT INFO.;　Y. Hiwatari, Y. Oyanagi, Y. Okabe and H. Takayama ed. Proceedings of The 5th International Conference on Computational Physics (Progress of Theoretical Physics Supplement No.138) (2000)
  AUTHOR;　S. Tadaki, M. Kikuchi, Y. Sugiyama and S. Yukawa
  
• Science of Traffic Flow;　2000
  ANNOUNCEMENT INFO.;　, 55, 3, 166-171
  AUTHOR;　
  
• Noise Induced Congested Traffic Flow in Coupled Map Optimal Velocity Model;　1999/04
  ANNOUNCEMENT INFO.;　JOURNAL- PHYSICAL SOCIETY OF JAPAN, 68, 9, 3110-3114
  AUTHOR;　Tadaki, S.-i / Kikuchi, M / Sugiyama, Y / Yukawa, S
  
• Noise Induced Congested Traffic Flow in Coupled Map Optimal Velocity Model;　1999
  ANNOUNCEMENT INFO.;　Proceedings of International Workshop on Soft Computing in Industry '99
  AUTHOR;　S. Tadaki, M. Kikuchi, Y. Sugiyama and S. Yukawa
  
• Coupled map traffic flow simulator based on optimal velocity functions;　1998
  ANNOUNCEMENT INFO.;　M. Schreckenberg and D. E. Wolf ed. Traffic and Granular Flow '97 (Springer, 1998)
  AUTHOR;　S. Tadaki, M. Kikuchi, Y. Sugiyama and S. Yukawa
  
• UNIXとWindows の共存する教育用システムにおける利用者管理と端末管理;　1998
  ANNOUNCEMENT INFO.;　J. Acad. Comp. Net. , 2, 14
  AUTHOR;　
  
• Traffic Flow Simulator Based on Optimal Velocity Function;　1998
  ANNOUNCEMENT INFO.;　M. Tokuyama and I. Oppenheim ed. Statistical Physics (World Scientific, Singapore, 1998)
  AUTHOR;　M. Kikuchi, Y. Sugiyama, S. Tadaki and S. Yukawa
  
• Coupled Map Traffic Flow Simulator Based on Optimal Velocity Functions;　1998
  ANNOUNCEMENT INFO.;　JOURNAL- PHYSICAL SOCIETY OF JAPAN, 67, 7, 2270-2276
  AUTHOR;　Tadaki, S.-i / Kikuchi, M / Sugiyama, Y / Yukawa, S
  
• Distribution of Jam Clusters in a Two-Dimensional Cellular Automaton Traffic Flow Model with Open Boundaries;　1997
  ANNOUNCEMENT INFO.;　JOURNAL- PHYSICAL SOCIETY OF JAPAN, 66, 3, 514-517
  AUTHOR;　Tadaki, S.-i
  
• Two-dimensional cellular automaton model of traffic flow with open boundaries;　1996
  ANNOUNCEMENT INFO.;　PHYSICAL REVIEW -SERIES E-, 54, 3, 2409-2413
  AUTHOR;　Tadaki, S.-i
  
• Self-Organization in a Two-Dimensional Cellular Automaton Model of Traffic Flow;　1995
  ANNOUNCEMENT INFO.;　JOURNAL- PHYSICAL SOCIETY OF JAPAN, 64, 12, 4504-4508
  AUTHOR;　Tadaki, S.-i / Kikuchi, M
  
• Dynamical Phase Transition in One Dimensional Traffic Flow Model with Blockage;　1994
  ANNOUNCEMENT INFO.;　Journal of Physical Soeity of Japan , 63, 10, 3609-3618
  AUTHOR;　S. Yukawa, M. Kikuchi and S. Tadaki
  
• Design of Pseudo-Random Patterns with Low Linear Dependence and Equi-Distribution;　1994
  ANNOUNCEMENT INFO.;　Proceedings of The Third Asian Test Symposium (IEEE Computer Society Press, Los Alamitos, USA, 1994)
  AUTHOR;　S. Matsufuji, S. Tadaki and T. Yamanaka
  
• Orbits in One-dimensional Finite Linear Cellular Automata;　1994
  ANNOUNCEMENT INFO.;　Physical Review E , 49, 2, 1168-1173
  AUTHOR;　S. Tadaki
  
• An Implementation of an ITS for Guiding Fraction Calculation;　1994
  ANNOUNCEMENT INFO.;　, J77-A, 3, 518-529
  AUTHOR;　
  
• Jam Phases in a Two-Dimensional Cellular Automaton Model of Traffic Flow;　1994
  ANNOUNCEMENT INFO.;　Physical Review E, 50, 6, 4564-4570
  AUTHOR;　S. Tadaki and M. Kikuchi
  
• Analysis of student's errors in differential calculations and buggy model;　1993/09
  ANNOUNCEMENT INFO.;　, 10, 3, 91-101
  AUTHOR;　
  
• Periodicity in One-dimensional Finite Linear Cellular Automata;　1993
  ANNOUNCEMENT INFO.;　Progress of Theoretical Physics, 89, 2, 325-331
  AUTHOR;　S. Tadaki and S. Matsufuji
  
• Courseware Knowledge and Recognition of Strategies in an ITS for Guiding Fraction Calculation;　1992
  ANNOUNCEMENT INFO.;　Proc. Pacific Rim Intern. Conf. on Artificial Intelligence `92, 1, 464-470
  AUTHOR;　H. Kondo, Y. Okazaki, K. Watanabe and S. Tadaki
  
• Quantum Field Theory in Two-dimensional Schwarzschild-de Sitter Spacetime. II;　1990
  ANNOUNCEMENT INFO.;　Pregress of Theoretical Physics, 83, 6, 1126-1139
  AUTHOR;　S. Tadaki and S. Takagi
  
• Quantum Field Theory in Two-dimensional Schwarzschild-de Sitter Spacetime. I;　1990
  ANNOUNCEMENT INFO.;　Pregress of Theoretical Physics, 83, 5, 941-952
  AUTHOR;　S. Tadaki and S. Takagi
  
• Cosmological Domain Walls Coupled to Gravity;　1990
  ANNOUNCEMENT INFO.;　Physical Review D, 41, 10, 3047-3051
  AUTHOR;　S. Tadaki and H. Ishihara
  
• Classification of Conformal Cosmological Models;　1990
  ANNOUNCEMENT INFO.;　Progress of Theoretical Physics, 83, 3, 491-498
  AUTHOR;　S. Tadaki, M. Den, K. Ohnishi and Y. Yamada
  
• Spectrum of Casimir Energy;　1989
  ANNOUNCEMENT INFO.;　Progress of Theoretical Physics, 82, 4, 737-743
  AUTHOR;　S. Tadaki and S. Takagi
  
• Hadamard Regularization and Conformal Transformation;　1989
  ANNOUNCEMENT INFO.;　Progress of Theoretical Physics, 81, 4, 891-903
  AUTHOR;　S. Tadaki
  
• Stress Tensor in de Sitter Space;　1988
  ANNOUNCEMENT INFO.;　Progress of Theoretical Physics, 80, 4, 654-662
  AUTHOR;　S. Tadaki
  
• Renormalized Stress Tensor and Field Fluctuation in a Friedmann Universe;　1988
  ANNOUNCEMENT INFO.;　Progress of Theoretical Physics, 79, 4, 790-799
  AUTHOR;　S. Tadaki
  
• Hadamard Regularization in Curved Spacetime;　1987
  ANNOUNCEMENT INFO.;　Progress of Theoretical Physics, 77, 3, 671-680
  AUTHOR;　S. Tadaki
  
• Casimir Effect at Finite Temperature;　1986
  ANNOUNCEMENT INFO.;　Progress of Theoretical Physics, 75, 2, 262-271
  AUTHOR;　S. Tadaki and S. Takagi
  
• Phenomenological Theory of the Equilibrium State of the System with a Black Hole and Radiation;　1985
  ANNOUNCEMENT INFO.;　Progress of Theoretical Physics, 73, 1, 288-291
  AUTHOR;　S. Tadaki and S. Takagi
  

Material, Commentary, Editorials, Research Report, A Comprehensive Journal Articles

• Machine Learning Analyses of Observed Highway Traffic Data;　2024/02
  ANNOUNCEMENT INFO.;　Papers of the 29th Symposium on Traffic Flow and Self-driven Particles, 29
  AUTHOR;　Shin-ichi TADAKI
  
• Origins of Reverse Lane Usage Studied with Nagel-Schreckenberg MOdel;　2016/12
  ANNOUNCEMENT INFO.;　Proceedings of the 22th Symposium on Traffic Flow and Self-driven Particles, 53
  AUTHOR;　T. Noda, Y. Hieida and S. Tadaki
  
• Dunbar's number in a microblogging service and its origin;　2016/12
  ANNOUNCEMENT INFO.;　Proceedings of the 22th Symposium on Traffic Flow and Self-driven Particles, 25
  AUTHOR;　N. Araki, Y. Hieida and S. Tadaki
  
• Linked Data Applied a Bibliographic Ontology as a Metadata Design of Historical Rare Books;　2015/03
  ANNOUNCEMENT INFO.;　, SIG-SWO-035-08
  AUTHOR;　N. Yoshiga, K. Wtanabe and S. Tadaki
  
• 書誌学的情報およびデータ入力を考慮した貴重書書誌オントロジーの構築;　2014/05
  ANNOUNCEMENT INFO.;　, JSAI2014, 1G5-OS-19b-1
  AUTHOR;　
  
• Constructing Ontology and a Visual Search System for Bibliography of Historical Documents and Art Objects by Extracting Metadata from Miscellaneous Fields;　2013/09
  ANNOUNCEMENT INFO.;　IPSJ SIG Notes, 2013, 5, 18
  AUTHOR;　Natsuko Yoshiga;Kenzi Watanabe;Shin-ichi Tadaki
  
• Developing a Bibliographical Ontology and a Visual Search System for Histrocal Documents with Semantic Web Technologies;　2013/06
  ANNOUNCEMENT INFO.;　The 27th Annual Conference of the Japanese Society for Artificial Intelligence 2013, 1N3-OS-10a-4in
  AUTHOR;　N. Yoshiga, K. Watanabe and S. Tadaki
  
• Development of Opengate Capable of Detecting Usage Termination by WebSocket;　2013/05
  ANNOUNCEMENT INFO.;　IEICE technical report. Information and communication management, 113, 23, 121125
  AUTHOR;　OTANI MAKOTO;ETO HIROFUMI;WATANABE KENZI;TADAKI SHIN-ICHI;WATANABE YOSHIAKI
  
• A Visual Search System with Semantic Web Technologies on Digital Archives for Historical Documents;　2012/12
  ANNOUNCEMENT INFO.;　International Conference on Convergence Content, 23-24
  AUTHOR;　Natsuko Yoshiga, Kenzi Watanabe, Shin-ichi Tadaki
  
• Improving the efficiency in an authentication system and its compatibility for the Gakunin federation;　2012/05
  ANNOUNCEMENT INFO.;　IPSJ SIG Technical Report, 2012, IOT17, 10
  AUTHOR;　S. Tadaki, H. Eto, M. Otani and K. Watanabe
  
• OpengateM: MAC-address Base Authentication System Complementary To Opengate;　2012/03
  ANNOUNCEMENT INFO.;　IPSJ SIG Technical Report, 2011, IOT-16
  AUTHOR;　Yoshiaki Watanabe, Makoto Otani, Hirofumi Eto, Kenzi Watanabe and Shin-ichi Tadaki
  
• Opengate on Cloud;　2012/03
  ANNOUNCEMENT INFO.;　Proceedings of The 26th IEEE International Conference on Advanced Information Networking and Applicatioins (AINA-2012), W-ITIS Workshop, Fukuoka, Japan, March 26th - 29th (2012.3). 1027
  AUTHOR;　Kenzi Watanabe, Makoto Otani, Shin-ichi Tadaki and Yoshiaki Watanabe
  
• Analysis of power-law correlation of e-mail sending demands;　2011/12
  ANNOUNCEMENT INFO.;　Proceedings of the 17th Symposium on Simulation of Traffic Flow, 105-108
  AUTHOR;　Y. Matsubara, Y. Hieida and S. Tadaki
  
• Phase transition in traffic flow experiments in circuit;　2011/12
  ANNOUNCEMENT INFO.;　Proceedings of the 17th Symposium on Simulation of Traffic Flow, 109-112
  AUTHOR;　S. Tadaki, M. Kikuchi, M. Fukui, A. Nakayama, K. Nishinari, A. Shibata, Y. Sugiyama, T. Yoshida and S. Yukawa
  
• Simulations of pedestrian crossing-flow based on a cellular automaton model with floor field;　2011/12
  ANNOUNCEMENT INFO.;　Proceedings of the 17th Symposium on Simulation of Traffic Flow, 113-116
  AUTHOR;　D. Takahashi, Y. Hieida and S. Tadaki
  
• Anti-power-failure plans and power management at university ICT centers;　2011/10
  ANNOUNCEMENT INFO.;　IPSJ SIG Technical Report, 2011-IOT-15, 8-1-8-5
  AUTHOR;　S. Tadaki, Y. Tanaka, T. Ono and K. Watanabe
  
• Cost reduction and Service Improvement in E-mail Services by a Private Cloud Service;　2011/07
  ANNOUNCEMENT INFO.;　IPSJ SIG Technical Report, 2011-IOT-14, 8-1-8-6
  AUTHOR;　Y. Matsubara, M. Otani, H. Eto, K. Watanabe and S. Tadaki
  
• “Documents distribution board” with Shibboleth for all faculty members;　2011/05
  ANNOUNCEMENT INFO.;　IPSJ SIG Technical Report, 2011-IOT-13, 16-1-16-6
  AUTHOR;　Natsuko Yoshiga, Hirofumi Eto, Makoto Otani, Kenzi Watanabe and Shin-Ichi Tadaki
  
• 佐賀大学の新しい学術情報基盤 -仮想化、シンクライアント、シングルサインオン-;　2010/12
  ANNOUNCEMENT INFO.;　
  AUTHOR;　
  
• Virtual user desktops through server-hosted thin-clients (The new educational terminal system in Saga University);　2010/10
  ANNOUNCEMENT INFO.;　IPSJ SIG Technical Report, 2010-IOT-11, 3-1
  AUTHOR;　S. Tadaki, Y. Tanaka, Y. Matsubara, Y. Hieida, H. Eto and K. Watanabe
  
• Evaluation of Anti-spam Practical Use Using by Greylisting;　2010/10
  ANNOUNCEMENT INFO.;　IPSJ SIG Technical Report, 2010-IOT-11, 7, 1-6
  AUTHOR;　Y. Matsubara, M. Otani, Y. Hieida and S. Tadaki
  
• Campus Information Network and Virtualization Technology;　2010/09
  ANNOUNCEMENT INFO.;　Journal for Academic Computing and Networking, 14, 158-163
  AUTHOR;　M. Otani, K. Watanabe and S. Tadaki
  
• Operation of SSO-Opengate using virtual machine;　2010/05
  ANNOUNCEMENT INFO.;　IPSJ SIG Technical Report, 2010-IOT-9, 5-1-5-6
  AUTHOR;　M. Otani, H. Eto, K. Watanabe, S. Tadaki and Y. Watanabe
  
• Effects of diagonal motions and partition lines on simulations of pedestrian counter flow;　2009/12
  ANNOUNCEMENT INFO.;　Proceedings of the 15th Symposium on Simulation of Traffic Flow, 69-72
  AUTHOR;　D. Takahashi, Y. Hieida and S. Tadaki
  
• Forced Display of Portal Site with Single Sign-On;　2009/05
  ANNOUNCEMENT INFO.;　IPSJ SIG Technical Report, 2009-IOT-5, 6-1-6-6
  AUTHOR;　M. Otani, H. Eto, K. Watanabe, S. Tadaki and Y. Watanabe
  
• Effects of short-range noises on the power spectrum and the Detrended Fluctuation Analysis;　2008/11
  ANNOUNCEMENT INFO.;　Proceedings of the 14th Symposium on Simulation of Traffic Flow, 69-72
  AUTHOR;　S. Tadaki
  
• Long-term correlation in Internet demand: case of e-mail sending;　2008/11
  ANNOUNCEMENT INFO.;　Proceedings of the 14th Symposium on Simulation of Traffic Flow, 73-75
  AUTHOR;　Y. Matsubara, Y. Hieida and S. Tadaki
  
• For flexible management of new e-mail addresses;　2008/09
  ANNOUNCEMENT INFO.;　Journal of Academic Computing and Networking, 12, 98-102
  AUTHOR;　H. Eto and S. Tadaki
  
• Installation to the authentication network of UPKI initiative server certificate;　2008/09
  ANNOUNCEMENT INFO.;　Journal of Academic Computing and Networking, 12, 103-107
  AUTHOR;　M. Otani, H. Eto, K. Watanabe, S. Tadaki and Y. Watanabe
  
• Collecting assessment data form all teaching staffs: Results and Problems;　2008/09
  ANNOUNCEMENT INFO.;　Journal of Academic Computing and Networking, 12, 112-116
  AUTHOR;　S. Tadaki, T. Endo, K. Funakubo, Y. Kishikawa, S. Murayama and H. Yamada
  
• Usage of the name resolution in Opengate;　2008/09
  ANNOUNCEMENT INFO.;　IPSJ SIG Technical Report 2008-IOT-3, 2008, 87, 55-60
  AUTHOR;　M. Otani, H. Eto, K. Watanabe, S. Tadaki and Y. Watanabe
  
• Unified data services in universities: From viewpoints of university assessments;　2008/09
  ANNOUNCEMENT INFO.;　IPSJ SIG Technical Report 2008-IOT-3, 2008, 87, 61-66
  AUTHOR;　S. Tadaki, T. Endo, K. Funakubo, Y. Kishikawa, S. Murayama and H. Yamada
  
• 情報センターと図書館の融合の行方 - 情報統合と活用 -;　2008/03
  ANNOUNCEMENT INFO.;　, 8, 54 - 58
  AUTHOR;　
  
• Detailed Data of Traffic Jam Experiment;　2007/12
  ANNOUNCEMENT INFO.;　Proceedings of the 13th Symposium on Simulation of Traffic Flow, 7-10
  AUTHOR;　A. Nakayama, M. Fukui, K. Hasebe, M. Kikuchi, K. Nishinari, Y. Sugiyama, S. Tadaki and S. Yukawa
  
• Structure of Networks and Fluctuations in Flow;　2007/12
  ANNOUNCEMENT INFO.;　Proceedings of the 13th Symposium on Simulation of Traffic Flow, 41-44
  AUTHOR;　S. Tadaki
  
• Development and operation of a network authentication system with detecting usage termination by watching HTTP connection;　2007/09
  ANNOUNCEMENT INFO.;　Journal of Academic Computing and Networking, 11, 87-91
  AUTHOR;　M. Otani, H. Eto, K. Watanabe, S. Tadaki and Y. Watanabe
  
• Operatability of educational terminals by Diskless Solaris;　2007/09
  ANNOUNCEMENT INFO.;　Journal for Academic Computing and Networking, 11, 115-119
  AUTHOR;　H. Eto and S. tadaki
  
• Installation and Operation of New Opengate with detecting Usage Termination by Watching HTTP Connection;　2007/09
  ANNOUNCEMENT INFO.;　IPSJ SIG Technical Report 2007-DSM-47, 31-36
  AUTHOR;　M. Otani, H. Eto, K. Watanabe, S. Tadaki and Y. Watanabe
  
• 情報系センターと附属図書館 - 連携と情報基盤の共通化 -;　2007/03
  ANNOUNCEMENT INFO.;　, 7, 38-41
  AUTHOR;　
  
• Development of the new Opengate capable of detecting usage termination by HTTP Keep-Alive;　2007/03
  ANNOUNCEMENT INFO.;　IPSJ SIG Technical Report 2007-DSM-44, 65-70
  AUTHOR;　M. Otani, H. Eto, K. Watanabe, S. Tadaki and Y. Watanabe
  
• ボトルネックによる渋滞形成;　2006/12
  ANNOUNCEMENT INFO.;　, 53-56
  AUTHOR;　
  
• Improvement of the network user authentication system Opengate for IPv4/IPv6 network;　2006/09
  ANNOUNCEMENT INFO.;　IPSJ SIG Technical Reports 2006-DSM-43, 19-24
  AUTHOR;　M. Otani, H. Eto, K. Watanabe, S. Tadaki and Y. Watanabe
  
• Outline of New System of Computer and Network Center;　2006/09
  ANNOUNCEMENT INFO.;　Journal for Academic Computing and Networking, 10, 75-80
  AUTHOR;　H. Eto and S. tadaki
  
• System for Preventing of Multilogin in Educational terminals;　2006/09
  ANNOUNCEMENT INFO.;　Journal for Academic Computing and Networking, 10, 91-96
  AUTHOR;　Y. Matsubara, Y. Tanaka, H. Eto and S. Tadaki
  
• Improvement and operation of the network user authentication system Opengate;　2006/09
  ANNOUNCEMENT INFO.;　Journal of Academic Computing and Networking, 10, 97-102
  AUTHOR;　M. Otani, H. Eto, K. Watanabe, S. Tadaki and Y. Watanabe
  
• An automatic generator of static whitelists in the milter-greylist system;　2006/07
  ANNOUNCEMENT INFO.;　IPSJ SIG Technical Report 2006-DSM-42, 43-45
  AUTHOR;　Y. Matsubara and S. Tadaki
  
• ボトルネック上流の高密度一様流：流量保存による現象論;　2005/12
  ANNOUNCEMENT INFO.;　, 33-36
  AUTHOR;　
  
• Development of network usage authentication system using Java Servlet;　2005/09
  ANNOUNCEMENT INFO.;　Journal for Academic Computing and Networking, 9, 85-89
  AUTHOR;　T. Nomura, S. Tobo, Y. Watanabe, K. Watanabe, H. Eto and S. Tadaki
  
• Development of an online submission system by PHP;　2005/09
  ANNOUNCEMENT INFO.;　Journal for Academic Computing and Networking, 9, 113-117
  AUTHOR;　H. Eto, N. Yoshiga and S. Tadaki
  
• Effective Writing Processes of System Specifications by XML;　2005/08
  ANNOUNCEMENT INFO.;　IPSJ SIG Techanical Report 2005-DSM-38, 17-22
  AUTHOR;　S. Tadaki
  
• ボトルネック上流における渋滞形成;　2004/12
  ANNOUNCEMENT INFO.;　, 57-60
  AUTHOR;　
  
• University Database: Problems and Solutions for Collecting Basic Information of Teaching Staffs;　2004/07
  ANNOUNCEMENT INFO.;　IPSJ SIG Technical Reports, 2004-DSM-33, 49 - 54
  AUTHOR;　S. Tadaki, Y.Hieida, M. Otsuki, K. Watanabe and Y. Watanabe
  
• Authentication and logging at public terminals with the "Opengate" system;　2004/05
  ANNOUNCEMENT INFO.;　IPSJ SIG Techanical Report 2004-DSM-33, 65-70
  AUTHOR;　S. Yasuda, H. Hanaishi, K. Watanabe, Y. Watanabe, H. Eto and S. Tadaki
  
• 大規模分散ネットワーク環境における教育用計算機システム：Diskless Dual Boot編;　2004/03
  ANNOUNCEMENT INFO.;　, 45, 3, 250-254
  AUTHOR;　
  
• LDAPによる情報管理機能を有するウェブメールソフトウェアの開発;　2004
  ANNOUNCEMENT INFO.;　, 8, 83-88
  AUTHOR;　
  
• 大学データベースにおける教員基礎情報収集の問題点と解決法;　2004
  ANNOUNCEMENT INFO.;　, 2004-DSM-34, 49-54
  AUTHOR;　
  
• Unification of Information Systems at University-Integration;　2003/11
  ANNOUNCEMENT INFO.;　IPSJ SIG Techanical Reports, 2003-DSM-31, 1-5
  AUTHOR;　H. Eto, Y. Tanaka, Y. Matubara and S. Tadaki
  
• Stable service of Educational Windows Terminals with Diskless Boot Mechanism;　2003/04
  ANNOUNCEMENT INFO.;　IPSJ SIG Techanical Reports, 2003-DSM-29, 19-24
  AUTHOR;　H. Eto, Y. Tanaka, Y. Matubara, S. Tadaki, K. Watanabe and Y. Watanabe
  
• 車線間相関 - 大型車の役割 -;　2002/11
  ANNOUNCEMENT INFO.;　, 9
  AUTHOR;　
  
• 東名高速道路における流量ゆらぎ;　2002/11
  ANNOUNCEMENT INFO.;　, 13
  AUTHOR;　
  
• 二車線路CMOV模型;　2002/11
  ANNOUNCEMENT INFO.;　, 29
  AUTHOR;　
  
• Integrated Authentication for Campus-wide Information Systems;　2002/10
  ANNOUNCEMENT INFO.;　IPSJ SIG Techanical Reports, 2002-DSM-27, 31-36
  AUTHOR;　H. Eto, K. Watanabe, S. Tadaki and Y. Watanabe
  
• UNIX環境とWindows環境を提供可能な教育用ディスクレス端末システム;　2002
  ANNOUNCEMENT INFO.;　IPSJ SIG Techanical Reports, 2002-DSM-25, 19-23
  AUTHOR;　
  
• Can we explain traffic congestion?;　2001/02
  ANNOUNCEMENT INFO.;　RIMS Kokyuroku, 1191, 84-89
  AUTHOR;　S. Tadaki
  
• WEBベース講義支援システムの開発;　2001
  ANNOUNCEMENT INFO.;　IPSJ SIG Techanical Reports, 2001-DSM-21, 25-30
  AUTHOR;　
  
• Webブラウザを用いたDNS管理システムの開発;　2001
  ANNOUNCEMENT INFO.;　IPSJ SIG Techanical Reports, 2001-DSM-21, 31-36
  AUTHOR;　
  
• オンライン・シラバスの出力システムの開発;　2001
  ANNOUNCEMENT INFO.;　J. Acad. Comp. Net. , 5, 57-60
  AUTHOR;　
  
• 佐賀大学電子図書館システム「とんぼの眼」;　2001
  ANNOUNCEMENT INFO.;　J. Acad. Comp. Net. , 5, 81-86
  AUTHOR;　
  
• Webベースネットワーク運用システムの開発;　2001
  ANNOUNCEMENT INFO.;　IPSJ SIG Techanical Reports, 2001-DSM-24, 25-30
  AUTHOR;　
  
• 1車線高速道路におけるトンネル上流の渋滞形成;　2000/11
  ANNOUNCEMENT INFO.;　, 14
  AUTHOR;　
  
• トンネル上流の渋滞形成 - 2車線モデルと実測の比較 -;　2000/11
  ANNOUNCEMENT INFO.;　, 21
  AUTHOR;　
  
• 東名高速道路観測データからの知見(その2);　2000/11
  ANNOUNCEMENT INFO.;　, 21
  AUTHOR;　
  
• 利用者認証と利用記録機能を実現するゲートウェイシステムOpengateの開発;　2000
  ANNOUNCEMENT INFO.;　
  AUTHOR;　
  
• 情報処理教育における統一した電子メール利用環境の実現;　2000
  ANNOUNCEMENT INFO.;　
  AUTHOR;　
  
• オンライン・シラバス;　2000
  ANNOUNCEMENT INFO.;　J. Acad. Comp. Net. , 4, 105-109
  AUTHOR;　
  
• センターの利用者管理を支援するWebベース統合環境;　2000
  ANNOUNCEMENT INFO.;　J. Acad. Comp. Net. , 4, 111-118
  AUTHOR;　
  
• 非対称Optimal velocity 模型;　1999/11
  ANNOUNCEMENT INFO.;　, 13
  AUTHOR;　
  
• 流入のある高速道での渋滞形成;　1999/11
  ANNOUNCEMENT INFO.;　, 17
  AUTHOR;　
  
• 車間距離観測ノイズによる輻輳流;　1999/11
  ANNOUNCEMENT INFO.;　, 51
  AUTHOR;　
  
• 東名高速道路観測データからの知見;　1999/11
  ANNOUNCEMENT INFO.;　, 63
  AUTHOR;　
  
• 情報教育用システムにおける管理作業とその振り分け;　1999
  ANNOUNCEMENT INFO.;　J. Acad. Comp. Net. , 3, 97
  AUTHOR;　
  
• CMOVモデルと輻輳交通流形成;　1998/11
  ANNOUNCEMENT INFO.;　, 49
  AUTHOR;　
  
• TCP/IPを利用したWindowsNT リモートシャットダウン;　1998
  ANNOUNCEMENT INFO.;　IPSJ SIG Techanical Reports, 99-DSM-12, 61-66
  AUTHOR;　
  
• 最適速度関数に基づく結合写像交通流シミュレータ;　1997/11
  ANNOUNCEMENT INFO.;　, 19
  AUTHOR;　
  
• パーソナルコンピュータを中心とした管理可能な情報処理教育環境の構築;　1997
  ANNOUNCEMENT INFO.;　
  AUTHOR;　
  
• 開放交通網モデルのシミュレーション;　1996/11
  ANNOUNCEMENT INFO.;　, 18
  AUTHOR;　
  
• Self-organization in a two-dimensional cellular automaton model of traffic flow;　1996
  ANNOUNCEMENT INFO.;　Bussei Kenkyu, 66, 3, 610-611
  AUTHOR;　S. Tadaki
  
• 二次元開放端CA交通流モデルにおける自己組織化;　1995/12
  ANNOUNCEMENT INFO.;　, 28
  AUTHOR;　
  
• 2次元交通量モデルにおける渋滞相の性質;　1994/12
  ANNOUNCEMENT INFO.;　, 27
  AUTHOR;　
  
• 2 次元セルオートマトン交通量モデルにおける渋滞相の安定性;　1994
  ANNOUNCEMENT INFO.;　
  AUTHOR;　
  
• Schwarzschild 時空上の_μ^ν>;　1987
  ANNOUNCEMENT INFO.;　
  AUTHOR;　
  

General Lectures

• Machine Learning Analyses of Observed Highway Traffic Data;　2023/12
  ANNOUNCEMENT INFO.;　The 29th Symposium on Traffic Flow and Self-driven Particles
  AUTHOR;　Shin-ichi Tadaki
  
• Semi-automated Generation of Linked Data from Unstructured Bibliographic Data for Japanese Historical Rare Books;　2017/09
  ANNOUNCEMENT INFO.;　14th International Conference on Digital Preservation (Kyoto, Sep. 2017)
  AUTHOR;　N. Yoshiga and S. Tadaki
  
• Dunbar's number in a microblogging service and its origin;　2016/12
  ANNOUNCEMENT INFO.;　The 22th Symposium on Traffic Flow and Self-driven Particles (Kyoto University, 2016), 第22回交通流の自己駆動粒子径シンポジウム(京都大学、2016), The 22th Symposium on Traffic Flow and Self-driven Particles (Kyoto University, 2016)
  AUTHOR;　
  
• Origins of Reverse Lane Usage Studied with Nagel-Schreckenberg Model;　2016/12
  ANNOUNCEMENT INFO.;　The 22th Symposium on Traffic Flow and Self-driven Particles (Kyoto University, 2016)
  AUTHOR;　Toshihiro Noda, Yasuhiro Hieida, and Shin-ichi Tadaki
  
• Extracting and Construction Contextual Information from Unstructured Texts in Bibliographical Data of Japanese Historical Rare Books;　2016/12
  ANNOUNCEMENT INFO.;　
  AUTHOR;　Natsuko Yoshiga and Shin-ichi Tadaki
  
• Linked Data Applied a Bibliographic Ontology as a Metadata Design of Historical Rare Books;　2015/03
  ANNOUNCEMENT INFO.;　
  AUTHOR;　N. Yoshiga, K. Wtanabe and S. Tadaki
  
• Critical density of experimental traffic jam;　2013/09
  ANNOUNCEMENT INFO.;　Traffic and Granular Flow '13 (Sep. 25-27, 2013, Forschungszentrum Jeulich, Germany)
  AUTHOR;　S. Tadaki, M, Kikuchi, M. Fukui, A. Nakayama, K. Nishinari, A. Shibata, Y. Sugiyama, T. Yosida and S. Yukawa
  
• A MAC address based authentication system applicable to campus-scale network;　2013/09
  ANNOUNCEMENT INFO.;　The 15th Asia-Pacific Network Operations and Management Symposium (APNOMS2013), Hiroshima, Japan (2013.09.27)
  AUTHOR;　Yoshiaki Watanabe, Makoto Otani, Hirofumi Eto, Kenzi Watanabe and Shin-ichi Tadaki
  
• Developing a Bibliographical Ontology and a Visual Search System for Histrocal Documents with Semantic Web Technologies;　2013/06
  ANNOUNCEMENT INFO.;　The 27th Annual Conference of the Japanese Society for Artificial Intelligence 2013
  AUTHOR;　N. Yoshiga, K. Watanabe and S. Tadaki
  
• A Visual Search System with Semantic Web Technologies on Digital Archives for Historical documents;　2012/12
  ANNOUNCEMENT INFO.;　International Conference on Convergence Content
  AUTHOR;　Natsuko Yoshiga, Kenzi Watanabe, Shin-ichi Tadaki
  
• Improving the efficiency in an authentication system and its compatibility for the Gakunin federation;　2012/05
  ANNOUNCEMENT INFO.;　
  AUTHOR;　S. Tadaki, H. Eto, M. Otani and K. Watanabe
  
• Phase transition in traffic flow experiments in circuit;　2011/12
  ANNOUNCEMENT INFO.;　The 17th Symposium on Simulation of Traffic Flow (Nagoya University、2011/12/8-9)
  AUTHOR;　S. Tadaki, M. Kikuchi, M. Fukui, A. Nakayama, K. Nishinari, A. Shibata, Y. Sugiyama, T. Yoshida and S. Yukawa
  
• Anti-power-failure plans and power management at university ICT centers;　2011/10
  ANNOUNCEMENT INFO.;　IPSJ SIG-IOT (Ehime University, 2011/10/7)
  AUTHOR;　S. Tadaki, Y. Tanaka, T. Ono and K. Watanabe
  
• Cost reduction and Service Improvement in E-mail Services by a Private Cloud Service;　2011/07
  ANNOUNCEMENT INFO.;　IPSJ SIG-IOT (Okayama University, 2011/7/15)
  AUTHOR;　Y. Matsubara, M. Otani, H. Eto, K. Watanabe and S. Tadaki
  
• シボレスに対応し全教職員が利用可能な「事務連絡ボード」;　2011/05
  ANNOUNCEMENT INFO.;　IPSJ SIG-IOT (Kyushu University, 2011/5/12-13)
  AUTHOR;　Natsuko Yoshiga, Hirofumi Eto, Makoto Otani, Kenzi Watanabe and Shin-Ichi Tadaki
  
• Vehicle Traffic Flow, Packet Flow and Human Behavior;　2011/03
  ANNOUNCEMENT INFO.;　International Workshop on Information System for Social Innovation (The Institute of Statistical Mathematics, Tachikawa, Tokyo, 2011/2/28-3/4)
  AUTHOR;　Shin-ichi TADAKI
  
• 佐賀大学の新しい学術情報基盤 -仮想化、シンクライアント、シングルサインオン-;　2010/12
  ANNOUNCEMENT INFO.;　
  AUTHOR;　
  
• Virtual user desktops through server-hosted thin-clients (The new educational terminal system in Saga University);　2010/10
  ANNOUNCEMENT INFO.;　
  AUTHOR;　S. Tadaki, Y. Tanaka, Y. Matsubara, Y. Hieida, H. Eto and K. Watanabe
  
• Rewiring through epidemic spreading;　2010/06
  ANNOUNCEMENT INFO.;　Conference on Computational Physics 2010 (Trondheim, Norway)
  AUTHOR;　S. Tadaki
  
• Effects of Fast Noises on Long-Range Correlations;　2009/12
  ANNOUNCEMENT INFO.;　Conference on Computational Physics 2009 (Kaohsiung, Taiwan)
  AUTHOR;　S. Tadaki
  
• Effects of short-range noises on the power spectrum and the Detrended Fluctuation Analysis;　2008/12
  ANNOUNCEMENT INFO.;　The 14th Symposium on Simulation of Traffic Flow (2008/11/28, Nagoya University)
  AUTHOR;　S. Tadaki
  
• Long-term correlation in Internet demand: case of e-mail sending;　2008/12
  ANNOUNCEMENT INFO.;　the 14th Symposium on Simulation of Traffic Flow (2008/11/28, Nagoya University)
  AUTHOR;　Y. Matsubara, Y. Hieida and S. Tadaki
  
• Collecting assessment data form all teaching staffs: Results and Problems;　2008/09
  ANNOUNCEMENT INFO.;　
  AUTHOR;　S. Tadaki, T. Endo, K. Funakubo, Y. Kishikawa, S. Murayama and H. Yamada
  
• Unified data services in universities: From viewpoints of university assessments;　2008/09
  ANNOUNCEMENT INFO.;　
  AUTHOR;　S. Tadaki, T. Endo, K. Funakubo, Y. Kishikawa, S. Murayama and H. Yamada
  
• Packet flow and its temporal properties on networks;　2007/06
  ANNOUNCEMENT INFO.;　Traffic and Granular Flow 2007 (Paris)
  AUTHOR;　S. Tadaki
  
• ボトルネックによる渋滞形成;　2006/11
  ANNOUNCEMENT INFO.;　
  AUTHOR;　
  
• インターネットパケット流の長時間ゆらぎ;　2006/03
  ANNOUNCEMENT INFO.;　
  AUTHOR;　
  
• Scale-free features in the observed traffic flow;　2005
  ANNOUNCEMENT INFO.;　Traffic and Granular Flow 2005(Berlin, Germany)
  AUTHOR;　S. Tadaki, M. Kikuchi, A. Nakayama, K. Nishinari, A. Shibata, Y. Sugiyama and S. Yukawa
  
• Slow stable traffic flow at the upper stream of bottleneck;　2004/09
  ANNOUNCEMENT INFO.;　Conference on Computational Physics 2004 (Genoa, Italy)
  AUTHOR;　S. Tadaki, M. Kikuchi, A. Nakayama, Y. Sugiyama and S. Yukawa
  
• 交通流実測データ解析とシミュレーション;　2004/03
  ANNOUNCEMENT INFO.;　
  AUTHOR;　
  
• 交通流時系列における特徴的時間スケール;　2004/03
  ANNOUNCEMENT INFO.;　
  AUTHOR;　
  
• Fluctuation in Experssway Traffic Flow;　2003/10
  ANNOUNCEMENT INFO.;　Traffic and Granular Flow '03 (TU Delft, Netherland)
  AUTHOR;　M. Kikuchi, A. Nakayama, K. Nishinari, A. Shibata, Y. Sugiyama, S. Tadaki and S. Yukawa
  
• Traffic Flow as Physics of Many-Body System;　2003/08
  ANNOUNCEMENT INFO.;　CTS2003(10th IFAC Symposium on Control in Transportation Systems)Seikei University (Tokyo)
  AUTHOR;　Y. Sugiyama, M. Kikuchi, A. Nakayama, A. Nishinari, K. Shibata, S. Tadaki and S. Yukawa
  
• Formation of Synchronized Flow at the Upper Stream of Bottleneck in Optimal Velocity MOdel;　2003/08
  ANNOUNCEMENT INFO.;　CTS2003(10th IFAC Symposium on Control in Transportation Systems)Seikei University (Tokyo)
  AUTHOR;　M. Kikuchi, Y. Sugiyama, S. Tadaki and S. Yukawa
  
• Computational Science -New tools for opening new research area-;　2003/05
  ANNOUNCEMENT INFO.;　SIM2003(The 3rd Indonesian Scientific Meeting 2003) Saga University 2003/5
  AUTHOR;　S. Tadaki
  
• 高速道路交通流のゆらぎ;　2003/03
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• 高速道路交通流の渋滞パターン;　2003/03
  ANNOUNCEMENT INFO.;　
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• 高速道交通流における大型車の役割;　2003/03
  ANNOUNCEMENT INFO.;　
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• Properties of congestion at an upper stream of a tunnel;　2002/08
  ANNOUNCEMENT INFO.;　Conference on Computational Physics (San Diego, USA)
  AUTHOR;　S. Tadaki
  
• Analysis of congested flow at the upper stream of a tunnel;　2001/11
  ANNOUNCEMENT INFO.;　International Symposium on Slow Dynamical Processes in Nature (Seoul, Korea)
  AUTHOR;　S. Tadaki, K. Nishinari, M. Kikuchi, Y. Sugiyama and S. Yukawa
  
• 非対称最適速度交通流模型における渋滞形成;　2001/09
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• Coupled map traffic flow model for one-lane expressways with blockades;　2000/12
  ANNOUNCEMENT INFO.;　Conference on Computational Physics 2000 (Gold Coast, Australia)
  AUTHOR;　S. Tadaki, M. Kikuchi, Y. Sugiyama and S. Yukawa
  
• セルオートマトン交通網模型 - 経路制御と渋滞形成 -;　1999/07
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• Congestion in Generalized Force Model of Traffic Flow;　1999/03
  ANNOUNCEMENT INFO.;　54th JPS Meeting (Hiroshima University)
  AUTHOR;　S. Tadaki and E. Schahverdiev
  
• 雑音による輻輳交通流形成II;　1998/09
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• Noise-induced congested flow in coupled map traffic flow model;　1998/06
  ANNOUNCEMENT INFO.;　XXth IUPAP International Conference on Statistical Physics (Paris, France)
  AUTHOR;　S. Tadaki, M. kikuchi, Y. Sugiyama and S. Yukawa
  
• 結合写像型最適速度交通流モデル;　1998/03
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• 雑音による輻輳交通流形成;　1998/03
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• Traffic flow simulator based on optimal velocity function;　1997/11
  ANNOUNCEMENT INFO.;　2nd Tohwa University International Meeting (Fukuoka, Japan)
  AUTHOR;　M. Kikuchi, Y. Sugiyama, S. Tadaki and S. Yukawa
  
• 最適速度関数を用いた結合写像型交通流シミュレータ;　1997/03
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• 2次元開放端セルオートマトン交通流モデルにおける渋滞クラスタの形成;　1996/10
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• 2次元開放端セルオートマトン交通流モデルにおける自己組織化;　1996/04
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• 交通流の2次元セルオートマトンによるモデル化 - 相転移と自己組織化 -;　1996/03
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• Self-organization in a two-dimensional cellular automaton model of traffic flow;　1995/11
  ANNOUNCEMENT INFO.;　1st Tohwa University Statistical Physics Meeting (Fukuoka, Japan)
  AUTHOR;　S. Tadaki
  
• 1次元有限線形セルオートマトンの周期が持つ階層構造;　1995/11
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• Jam phases in a two-dimensional cellular automaton model of traffic flow;　1995/08
  ANNOUNCEMENT INFO.;　19th IUPAP International Conference on Statistical Physics (Xiamen, China)
  AUTHOR;　S. Tadaki and M. Kikuchi
  
• 2次元セルオートマトン交通流モデルにおける渋滞相のフラクタル構造;　1995/03
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• 2次元交通量モデルにおける渋滞相の空間構造;　1994/11
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• 非等方二次元交通量モデルにおける渋滞;　1994/09
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• 周期境界条件を持つ1次元線形セルオートマトンの周期性;　1994/09
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• Periodic orbits of finite linear cellular automata;　1994/07
  ANNOUNCEMENT INFO.;　BrisPhys '94 (Brisbane, Australia)
  AUTHOR;　S. Tadaki
  
• 2次元セルオートマトン交通量モデルにおける渋滞相の性質;　1994/03
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• 2次元交通量モデルにおける渋滞相の性質;　1993/11
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• Freeway Jam II : 二次元モデル;　1993/10
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• 1次元有限線形セルオートマトンにおける周期性;　1993/03
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• 1次元有限線形セルオートマトンにおける周期性;　1992/11
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• 曲がった時空上の_μ^ν>;;　1990
  ANNOUNCEMENT INFO.;　
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• Dynamics of Cosmological Domain Walls;　1990
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• 分数計算を指導する知的CAI--分数の基礎概念と加減算の多重階層世界--;　1990
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• 分数計算を指導する知的CAI --システム構成--;　1990
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• 一様等方宇宙に埋め込まれたブラックホールからのホーキング輻射;　1989
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• Hawking Radiation from Cosmological Black Holes;　1989
  ANNOUNCEMENT INFO.;　12th International Conference on General Relativity and Gravitation (July 2-8, 1989) (University of Colorado)
  AUTHOR;　S. Tadaki
  
• 2次元Schwarzschild-de Sitter時空上の場の量子論;　1989
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• Classification of Conformal Cosmological Models;　1989
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• Domain Walls Coupled to Gravity;　1989
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• Schwarzschild 時空上の_μ^ν>;;　1987
  ANNOUNCEMENT INFO.;　
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• Schwarzschild 時空上の_μ^ν>; II;　1987
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• Friedmann 時空上のスカラー場;　1987
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• Hadamard正則化法とconformal変換;　1987
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• Schwarzschild 時空上の_μ^ν>;;　1986
  ANNOUNCEMENT INFO.;　
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• ブラックホールと黒体輻射からなる系の平衡状態;　1984
  ANNOUNCEMENT INFO.;　
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Other Lectures

• Toward Business Continuity Plans for ICT Sections in Universities;　2011/08
  ANNOUNCEMENT INFO.;　Lecture at TOPIC meeting (Tohoku University, 2011/8/3)
  AUTHOR;　S. Tadaki
  
• 佐賀大学におけるシングルサインオンの取り組みと今後の展望;　2011/02
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• 学術情報基盤の現状と課題 - 所有から利用へ -;　2009/11
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• 大学情報システムの強化・効率化 -統合・アウトソーシング。協同化-;　2009/06
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• ITは大学運営の効率化に寄与しているか?;　2008/10
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• 情報センターと図書館の融合の行方;　2007/06
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• 利用者用ネットワークと統合認証;　2006/01
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• シンクライアントで実現！コンピュータ管理コスト削減;　2005/11
  ANNOUNCEMENT INFO.;　
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Invited Lecture, Special Lecture

• Information Infrasturcture based on Authentication System: Case of Saga University;　2011/03
  ANNOUNCEMENT INFO.;　74th Annual Meeting of Information Processing Society of Japan
  AUTHOR;　Shin-ichi Tadaki