SUGITANI Kenichi

J-GLOBAL         Last updated: May 2, 2017 at 11:35
 
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Name
SUGITANI Kenichi
Affiliation
Kumamoto University
Section
Center for Multimedia and Information Technologies
Job title
Professor
Degree
Master of Engineering(Kumamoto University), Doctor of Engineering(Kumamoto University)

Research Areas

 
 

Academic & Professional Experience

 
1986
 - 
1992
 Research Associate,Kumamoto University
 
1992
 - 
1994
 Research Associate,Faculty of Engineering,Kumamoto University
 
1994
 - 
2002
 Associate Professor,Kumamoto University
 
2002
 - 
2004
 Associate Professor,
 
2004
   
 
 Professor, ,Center for Management of Information Technologies,Kumamoto University
 

Education

 
 
 - 
1984
Graduate School, Division of Engineering, Kumamoto University
 
 
 - 
1982
Faculty of Engineering, Kumamoto University
 

Misc

 
Fumio Ueno, Takahiro Inoue, Kenichi Sugitani, Makoto Inoue
Transactions of the Institute of Electronics and Communication Engineers of Japan. Section E   E69(10) 1098-1103   Oct 1986
Two kinds of cyclic switched-capacitor A/D converters using only one op-amp are presented. The effects of the nonidealities of the circuit such as a capacitor-ratio mismatch, an op-amp's offset voltage and a parasitic capacitance, on a conversion ...
Fumio Ueno, Takahiro Inoue, Kenichi Sugitani, Shinji Araki
Proceedings - IEEE International Symposium on Circuits and Systems   3 2813-2816   Dec 1988
Two kinds of methods have been proposed to compensate or eliminate the capacitor mismatch of switched-capacitor A/D (analog-to-digital) and D/A converters. In the first method, a cyclic D/A converter with the facility of the automatic compensation...
Fumio Ueno, Takahiro Inoue, Kenichi Sugitani, Shinji Araki
Proceedings of The International Symposium on Multiple-Valued Logic   195-201   Dec 1989
A programmable switched-capacitor (SC) circuit, which can perform multivalued-to-binary (M/B) and binary-to-multivalued (B/M) conversions, is proposed. The circuit can be used as an interface between a binary logic system and multivalued logic sys...
Fumio Ueno, Takahiro Inoue, Kenichi Sugitani, Masaaki Kinoshita, Yutaka Ogata
Midwest Symposium on Circuits and Systems   2 748-751   Dec 1991
A small-scale sigma-delta modulator for a sigma-delta A/D converter is presented. The proposed modulator employs a double-integration switched-capacitor architecture. The circuit configuration has low sensitivity to the process deviation of analog...
Fumio Ueno, Takahiro Inoue, Kenichi Sugitani, Badur ul Haque Baloch, Takayoshi Yamamoto
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences   E76-A 631-636   Apr 1993
In this work, we introduce a fuzzy inference in conventional backpropagation learning algorithm, for networks of neuron like units. This procedure repeatedly adjusts the learning parameters and leads the system to converge at the earliest possible...
Kenichi Sugitani, Fumio Ueno, Takahiro Inoue, Takeru Yamashita, Satoshi Nagata
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences   E76-A 931-939   Jun 1993
Oversampled analog-to-digital (A/D) converters based on sigma-delta ΣΔ) modulation are attractive for VLSI implementation because they are especially tolerant of circuit nonidealities and component mismatch. Oversampled ΣΔ modulator has some point...
Kenichi Sugitani, Fumio Ueno, Takahiro Inoue, Takeru Yamashita
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences   E77-A 1179-1184   Jul 1994
An integrator using UGB (unity-gain buffer) is proposed. The UGB has gain error. To improve the gain error of UGB in the integrator, a compensation technique of the gain error of UGB is proposed. Next, second-order ΣΔ A/D converter using UGB integ...
MUSASHI Yasuo, SUGITANI Kenichi, MATSUBA Ryuichi
IPSJ SIG Notes, Computer Secuirty 19th   2002(122) 19-24   Dec 2002
The name resolving UDP packet traffic between the domain name system (DNS) server and the electronic mail (E-mail) server of Kumamoto University was statistically investigated when several PC terminals were infected by the mass mailing worm (MMW),...
Development of an E-mail Application "Seemit" and its Utilization in a Information Literacy Course
FIE-03-23-FIE-03-23   2003
System and Staff Organizing to Enable All the Students of All the Faculties to Learn Information Technology Basics up to a Uniform Level
IEE Frontier In Education   FIE-03-25-FIE-03-25   2003
Statistical Analysis in Log Files of Electronic-Mail Server and Domain Name System Server. SPAM Mail Generates Many DNS Query Packets.
MUSASHI Yasuo, MATSUBA Ryuichi, SUGITANI Kenichi
Journal for Academic Computuing and Networking   Vol.7(1) 5-11   2003
Cooperation Acitivities Support System Combined Television Conference and Streaming Distribution
Journal for Academic Computing and Networking   Vol.7 33-42   2003
MUSASHI Yasuo, MATSUBA Ryuichi, SUGITANI Kenichi
IPSJ SIG Notes, Computer Secuirty 20th(CSEC-20/DPS-111)   2003(18) 185-190   Feb 2003
The DNS query (D_q) traffic between the DNS and E-mail servers of Kumamoto University was statistically investigated when a lot of PC terminal were infected by the mass mailing worm (MMW) like Frethem.K. The interesting results are : (1) The numbe...
MUSASHI YASUO, MATSUBA RYUICHI, SUGITANI KENICHI
IPSJ SIG Notes   2003(18) 185-190   Feb 2003
The DNS query (D_q) traffic between the DNS and E-mail servers of Kumamoto University was statistically investigated when a lot of PC terminal were infected by the mass mailing worm (MMW) like Frethem.K. The interesting results are : (1) The numbe...
USAGAWA Tsuyoshi, SUGITANI Kenichi
工学・工業教育研究講演会講演論文集   15 551-552   Sep 2003
Matsuoka Shinji
Record of Joint Conference of Electrical and Electronics Engineers in Kyushu   2004(0) 313-313   2004
Statistical Analysis in Syslog Files in DNS and Spam SMTP Relay Servers
MATSUBA Ryuichi, MUSASHI Yasuo, SUGITANI Kenichi
IPSJ DSM Symposium Series   2004(3) 31-36   2004
Strategy for the Use of Course Management Systems Based on the Experiences of the Large-scale Courses
17-22   2004
Indirect Detection of Mass Mailing Worm-Infected PC terminals for Learners
MUSASHI Yasuo, MATSUBA Ryuichi, SUGITANI Kenichi
Proceeding for the 3rd International Conference on Emerging Telecommunications Technologies and Applicatications (ICETA2004)   3 233-237   2004
Construction of Ubiquitous Computing with Campus Wireless Network System
MIGITA Masahiro, SUGITANI Kenichi, KITA Toshihiro, NAKANO Hiroshi, MATSUBA Ryuichi, MUSASHI Yasuo, TSUJI Kazutaka, SHIMAMOTO Masaru, KIDA TAKESHI, OHTA Yasufumi, TAIRA Hideo, USAGAWA Tsuyoshi, AKIYAMA Hidenori
Journal of Academic Computing and Networking   8(1) 17-24   2004
Workaround for Welchia and Sasser Internet Worms in Kumamoto University
MUSASHI Yasuo, MATSUBA Ryuichi, SUGITANI Kenichi, MORIYAMA Toshiyuki
Journal for Academic Computing and Networking   8(1) 5-8   2004
DNS Query Access and Backscattering SMTP Distributed Denial-of-Service Attack
MUSASHI Yasuo, MATSUBA Ryuichi, SUGITANI Kenichi
IPSJ Symposium Series   2004(16) 45-49   2004
SUGITANI Kenichi, MATSUMOTO Kei
Japan journal of educational technology   Vol. 27(Suppl.) 25-28   Mar 2004
インターネットに代表される情報環境の急速な成長により,大量の情報が容易に入手可能となりつつある.それに伴い,学習に電子化された情報を用いることが多くなっている.しかしその反面,入手可能な情報量が人間の処理能力を超え,かえって効率が低下するという「情報過多(information overflow)」が深刻な問題となってきている.我々は,現在の情報検索・分類では,大量の情報の内容理解・関連性判断を行なうことは困難であり,これらを解決しなければ情報を有効に活用することはできないと考える.本研究...
MATSUBA RYUICHI, MUSASHI YASUO, SUGITANI KENICHI
IPSJ SIG Technical Reports, Distributed System and Management 32nd   2004(37) 67-72   Mar 2004
The syslog messages of the topdomain-secondary DNS server in Kumamoto University were statistically investigated when infection of mass mailing worm (MMW) like W32/Sobig, W32/Mydoom, and W32/Netsky were increased worldwidely. The interesting resul...
MUSASHI Yasuo, MATSUBA Ryuichi, SUGITANI Kenichi
IPSJ SIG Technical Reports, Distributed System and Mangement 34th   2004(77) 43-48   Jul 2004
The syslog messages of the top domain DNS servers in Kumamoto University were statistically investigated when having a distributed denial-of-service (DDoS) attack like receiving a large amount of DNS query packets. The interesting results are : (1...
Makoto Miyazaki, Kenichi Sugitani, Toshihiro Kita, Hidenori Akiyama
Proceedings of the Fifth International Conference on Information Technology Based Higher Education and Training, ITHET 2004   473-476   Dec 2004
We have developed a simple E-mail application named Seemit which is designed for being used in information literacy courses. It has necessary and sufficient functions for an E-mail application, and it has been developed for the purpose of learning...
Sugitani Kenichi, Kishida Shingo
Record of Joint Conference of Electrical and Electronics Engineers in Kyushu   2005(0) 461-461   2005
Yasuo Musashi, Seiji Hayashida, Ryuichi Matsuba, Kenichi Sugitani, Kai Rannenberg
APNOMS 2005 - 8th Asia-Pacific Network Operations and Management Symposium :Toward Managed Ubiquitous Information Society, Proceedings   574-585   Jan 2005
The syslog messages of the top domain DNS (tDNS) servers in a university were statistically investigated when having receiving a large amount of DNS query packets like a distributed denial-of-service (DDoS) attack. Three types of DNS query-based D...
MUSASHI YASUO, MATSUBA RYUICHI, SUGITANI KENICHI
情報処理学会研究報告インターネットと運用技術(IOT)   2005(83) 23-28   Aug 2005
The contents of the A record based DNS query packets between the DNS server and DNS clients in a university were investigated when receiving a large amount of DNS resolution access. The interesting results are : (1) Keywords of "mail", "smtp", "mx...
Hiroshi Nakano, Norio Iriguchi, Kenichi Sugitani, Toshihiro Kita, Yasuo Musashi, Masahiro Migita, Ryuichi Matsuba, Yasushi Ohta, Tohru Gobayashi, Kazutaka Tsuji, Masaru Shimamoto, Takeshi Kida, Tsuyoshi Usagawa, Hidenori Akiyama
ITHET 2005: 6th International Conference on Information Technology Based Higher Education and Training, 2005   2005(F4B) 7-11   Dec 2005
Kumamoto University implements basic courses of information technologies as required subjects of all faculties from 2002. They can be assumed as large-scale courses because there are approximately 1,800 learners respectively. They are managed by s...
松葉 龍一, 杉谷 賢一, 喜多 敏博
Journal for academic computing and networking   (10) 15-20   2006
A Threat of AAAA Resource Record-based DNS Query Traffic
MUSASHI Yasuo, MATSUBA Ryuichi, SUGITANI Kenichi
IPSJ Symposium Series   2006(12) 61-66   2006
A DNS-based Countermeasure Technology for Bot Worm-infected PC terminals in the Campus Network
LUDENA R. Dennis. A.,NAGATOMI Hirofumi, MUSASHI Yasuo, MATSUBA Ryuichi, SUGITANI Kenichi
Journal for Academic Computing and Networking   10(1) 39-46   2006
Detection of Bot Worm-Infected PC Terminals
LUDENA R. Dennis. A.,MUSASHI Yasuo, MATSUBA Ryuichi, SUGITANI Kenichi
Proceeding for the 4th International Conference on Information and the Irish Conference on the Mathematical Foundations of Computer Science and Information Technology   4 148-151   2006
Abnormal DNS Query Traffic from IPv6 based DNS Clients
NAGATOMI Hirofumi,LUDENA R. Dennis. A., MUSASHI Yasuo,MATSUBA Ryuichi, SUGITANI Kenichi
Proceeding for the 9th Asia-Pacific Network Operations and Management Symposium, Management of Convergence Networks and Services   9 601-608   2006
KITA Toshihiro, MIYAZAKI Makoto, NAKANO Hiroshi, SUGITANI Kenichi, AKIYAMA Hidenori
IEEJ Transactions on Fundamentals and Materials   126(7) 623-628   Jul 2006
We have developed a simple e-mail application named Seemit which is designed for being used in information literacy courses. It has necessary and sufficient functionality of an e-mail application, and it has been developed for the purpose of learn...
Toshihiro Kita, Toshihiro Kita, Makoto Miyazaki, Makoto Miyazaki, Hiroshi Nakano, Hiroshi Nakano, Kenichi Sugitani, Kenichi Sugitani, Hidenori Akiyama, Hidenori Akiyama
IEEJ Transactions on Fundamentals and Materials   126 623-628   Jul 2006
We have developed a simple e-mail application named Seemit which is designed for being used in information literacy courses. It has necessary and sufficient functionality of an e-mail application, and it has been developed for the purpose of learn...
USAGAWA Tsuyoshi, IRIGUCHI Norio, NAKANO Hiroshi, SUGITANI Ken'ichi, MUSASHI Yasuo, KITA Toshio
工学・工業教育研究講演会講演論文集   18 446-447   Jul 2006
NAGATOMI HIROFUMI, LUDENA ROMANA DENNIS ARTONA, MUSASHI YASUO, MATSUBA RYUICHI, SUGITANI KENICHI
IPSJ SIG Technical Reports   2006(97) 25-30   Sep 2006
We investigated statistically on the IPv6 source IP address-based DNS query traffic a university campus network through January 1st to December 31st, 2005. The results are summarized, as follows: (1) Several security incidents in the IPv6-based DN...
Tsuyoshi Usagawa, Tsuyoshi Usagawa, Kenichi Sugitani, Toshihiro Kita, Norio Iriguchi, Masahiro Migita, Ryuichi Matsuba, Yasuo Musashi, Hiroshi Nakano, Hiroshi Nakano
7th International Conference on Information Technology Based Higher Education and Training, ITHET   647-651   Dec 2006
For the quality assurance of IT literacy, the IT based learning environments and e-Learning courses have been intensively developed. University implements "The Basic Course of Information Technologies A and B" as required subjects of all fresh stu...
右田 雅裕, 杉谷 賢一, 松葉 龍一
Journal for academic computing and networking   (11) 14-22   2007
Crash of NIS Server Generates Unusual DNS Query Traffic
LUDENA R. Dennis A., NAGATOMI Hirofumi, MUSASHI Yasuo, TANIGUCHI Katsunori, OOMURA Nobuaki, MATSUBA Ryuichi, SUGITANI Kenichi
Proceedings for the 2nd International Conference on Innovative Computing Information and Control (ICICIC2007)   B15-07 1-4   2007
Threats of Unusual DNS Query Traffic from NIS Clients
LUDENA R. Dennis A., NAGATOMI Hirofumi, MUSASHI Yasuo, MATSUBA Ryuichi, SUGITANI Kenichi
IPSJ SIG Technical Reports, Distributed System and Mangement 45th (DSM45)   2007(38) 95-98   2007
Detection of Bot Worm-Infected PC Terminals
LUDENA R. Dennis A., MUSASHI Yasuo, MATSUBA Ryuichi, SUGITANI Kenichi
Information   10(5) 673-686   2007
Entropy Study on MX Resource Record-Based DNS Query Packet Traffic
LUDENA R. Dennis A., MUSASHI Yasuo, SUGITANI Kenichi
IPSJ Symposium Series   2007(13) 21-26   2007
DNS based Security Incidents Detection in Campus Network
LUDENA R. Dennis A., MUSASHI Yasuo, SUGITANI Kenichi
Proceedings for the 1st International Workshop on Intelligent Networks and Intelligent Systems (IWINIS2007)   1 673-686   2007
NAKANO Hiroshi, KITA Toshihiro, SUGITANI Kenichi, MATSUBA Ryuichi, MIGITA Masahiro, MUSASHI Yasuo, IRIGUCHI Norio, USAGAWA Tsuyoshi
IPSJ SIG Notes   2007(101) 5-10   Oct 2007
We developed an online training tool for Java applet which is a well known extension for web written in Java language. The tool is built as a J2EE web application using a server-side Java compiler, it therefore can run just on a web browser. We su...
Dennis Arturo Ludeña Romaña, Yasuo Musashi, Hirofumi Nagatomi, Kenichi Sugitani
ISCIT 2007 - 2007 International Symposium on Communications and Information Technologies Proceedings   7 592-595   Dec 2007
We statistically investigated on the unusual big DNS resolution traffic toward the top domain DNS server from a university local campus network in April 11th, 2006. The following results are obtained: (1) In April 11th, the DNS query traffic inclu...
Possibilities for applying WebOS to trace learners' activity on e-Learning
Ko ITO,Hiroshi NAKANO,Kenichi SUGITANI
88-89   2008
Developing the IMS-capable Web-based Management Tool for Registered Courses
SUGITANI Kenichi,KITA Toshihiro,USAGAWA Tsuyoshi,
IPSJ SG Technocal Reports   (9) 83-90   2008
Developing the Web-based Timetable System Cooperated with LMS and SSO
Hiroshi NAKANO, Kenichi SUGITANI, Toshihiro KITA, Ryuichi MATSUBA, Shinichiro KUBOTA, Masahiro MIGITA, Yasuo MUSASHI, Norio IRIGUCHI, Ken KIDA, Masaru SHIMAMOTO, Kazutaka TSUJI, Tomiyuki SHIMURA, Tsuyoshi USAGAWA
IPSJ SG Technocal Reports   (9) 79-82   2008
How should we realize university portal and learning portal ?
H. Nakano R. Matsuba T. Kita K. Sugitani M. Miyazaki J. Nemoto K. Inoue K. Suzuki
375-376   2008
Add logging a function to WebOS to use as an e-learning platform
Ko ITO,Hiroshi NAKANO,Kenichi SUGITANI,Takayuki NAGAI
IPSJ SG Technocal Reports   (10) 23-26   2008
Evaluation for the huge number of Assignments on WebCT CE6
IPSJ SG Technocal Reports   (10) 55-58   2008
Utilization of CAS to an Education-Oriented E-mail Application "Seemit"
Makoto MIYAZAKI, Toshihiro KITA, Hiroshi NAKANO, Kenichi SUGITANI, Hidenori AKIYAMA
IPSJ SG Technocal Reports   (10) 15-18   2008
Dennis Arturo Ludeña Romaña, Hirofumi Nagatomi, Yasuo Musashi, Katsunori Taniguchi, Nobuaki Oomura, Ryuichi Matsuba, Kenichi Sugitani
Second International Conference on Innovative Computing, Information and Control, ICICIC 2007      Feb 2008
We investigated statistically on the unusual DNS query traffic from several DNS clients like Linux servers and/or PC terminals in the campus network of a university. The interesting results are: (1) The DNS query traffic includes several keywords ...
Dennis Arturo Ludeña Romaña, Kenichi Sugitani, Yasuo Musashi
International Journal of Intelligent Engineering and Systems   1 17-21   Mar 2008
The DNS query traffic from the inside and the outside of the campus network in a university was statistically investigated through January 1st, to July 31st, 2007. The following interesting results are obtained, as follows: (1) The unique source I...
KUBOTA Shin-Ichiro, YOSHIDA Tomoki, MUSASHI Yasuo, SUGITANI Kenichi
IPSJ SIG Technical Reports   2008(37) 53-58   May 2008
The classes, using the web based course management system and related with the infomatics, are increasing. Therefore, many students and teachers are using desktop PCs of educational terminal systems in class-rooms and study-rooms. The students wan...
KUBOTA Shin-Ichiro, YOSHIDA Tomoki, MUSASHI Yasuo, SUGITANI Kenichi
IEICE technical report. Information and communication management   108(24) 53-58   May 2008
The classes, using the web based course management system and related with the infomatics, are increasing. Therefore, many students and teachers are using desktop PCs of educational terminal systems in classrooms and study-rooms. The students want...
ROMANA Dennis Arturo Ludena, SUGITANI KENICHI, KUBOTA SHINICHIRO, MUSASHI YASUO
IPSJ SIG Technical Reports   2008(87) 1-6   Sep 2008
We carried out an entropy study on the DNS query traffic from the outside for a university campus network to the top domain DNS server in a university through April 1st, 2007 to July 31st, 2008. The following interesting results are given: (1) The...
Dennis Arturo Ludeña Romaña, Shinichiro Kubota, Kenichi Sugitani, Yasuo Musashi
Proceedings - The 1st International Conference on Intelligent Networks and Intelligent Systems, ICINIS 2008   205-208   Dec 2008
We carried out an entropy study on the DNS query traffic from the outside of a university campus network to the top domain DNS server when querying about reverse resolution on the PC room terminals through April 1st, 2007 to April 30th, 2008. The ...
久保田 真一郎, 杉谷 賢一, 武藏 泰雄
Journal for academic computing and networking   (13) 24-31   2009
E-learning based course improvement and guarantee for educational quality
KITAMURA Shirou,USAGAWA Tsuyoshi,SUGITANI Kenichi, Hiroshi NAKANO,KITA Toshihiro,IRIGUCHI Norio,MATSUBA Ryuichi,MUSASHI Yasuo,MIGITA Masahiro,kubota shin'ichirou
Computer&education   25 12-17   2009
Kubota Shin-Ichiro, Furukawa Seiichiro, Soejima Yoshihito, Kawamura Ryo, Sugitani Kenichi
情報科学技術フォーラム講演論文集   8(4) 175-177   Aug 2009
Dennis Arturo Romaña Ludeña, Shinichiro Kubota, Kenichi Sugitani, Yasuo Musashi
International Journal of Intelligent Engineering and Systems   2 11-18   Sep 2009
We carried out an entropy study on the DNS query traffic from the outside of a university campus network to the top domain DNS server when querying about reverse resolution on the PC room terminals through April 1st, 2007 to April 30th, 2008. The ...
Kazuya Takemori, Dennis Arturo Ludeña Romaña, Shinichiro Kubota, Kenichi Sugitani, Yasuo Musashi
ICINIS 2009 - Proceedings of the 2nd International Conference on Intelligent Networks and Intelligent Systems   246-249   Dec 2009
We carried out an entropy study on the DNS query traffic from the Internet to the top domain DNS server in a university campus network through January 1st to March 31st, 2009. The obtained results are: (1) We observed a difference for the entropy ...
Dennis Arturo Ludeña Romaña, Kazuya Takemori, Shinichiro Kubota, Kenichi Sugitani, Yasuo Musashi
ICINIS 2009 - Proceedings of the 2nd International Conference on Intelligent Networks and Intelligent Systems   250-252   Dec 2009
Currently, the network security appliance is one of the most important research topics in IT security. The use of log files for further security analysis was proven their importance in the development of a three DNS query traffic based detection m...
Kazuya Takemori, Dennis Arturo Ludeña Romaña, Shinichiro Kubota, Kenichi Sugitani, Yasuo Musashi
International Journal of Intelligent Engineering and Systems   2 35-42   Dec 2009
We carried out an entropy study on the DNS query traffic from the Internet to the top domain DNS server in a university campus network through January 1st to March 31st, 2009. The obtained results are: (1) We observed a difference for the entropy ...
右田 雅裕, 杉谷 賢一, 久保田 真一郎
Journal for academic computing and networking   14(1) 48-55   2010
Cost-efficient implementation of campus-wide network with gigabit reachability
MIGITA Masahiro,SUGITANI Kenichi,kubota shin'ichirou,MUSASHI Yasuo,IRIGUCHI Norio,KITA Toshihiro,MATSUBA Ryuichi,tsuji kazutaka,shimamoto masaru,kida takeshi,USAGAWA Tsuyoshi,NAKANO Hiroshi,
Journal for Academic Computing and Networking   14(1) 48-55   2010
KAWAMURA RYO, SOEJIMA YOSHITO, KUBOTA SHIN-ICHIRO, FURUKAWA SEIICHIRO, SUGITANI KENICHI
研究報告インターネットと運用技術(IOT)   8(51) 1-4   Feb 2010
KIAI 事業の平成 21年度実証実験として,宮崎県美郷町で行われた地理的条件不利地域の災害時に対応する情報通信インフラ網の構築実験において,無線 LAN 網を構成するアクセスポイントを搭載したバルーンの位置推定を試みた.その際に,思うような観測データが得られず,位置推定が困難であった.本研究では,その観測データをもとに分散および相関関係を考察し,ノイズを含む観測データから位置を推定するに十分なデータを抽出し位置推定を行った結果を報告する.In the practical situatio...
Hiroshi Nakano, Kenichi Sugitani, Takayuki Nagai, Shinichiro Kubota, Masahiro Migita, Yasuo Musashi, Norio Iriguchi, Tsuyoshi Usagawa, Toshihiro Kita, Ryuichi Matsuba
2010 IEEE Education Engineering Conference, EDUCON 2010   1(1) 153-158   Jul 2010
We developed a web-based time schedule system as an important feature of the university portal along with our university's long-term ICT (Information and Communication Technologies) plan. By using the system, students and professors can get their ...
Yasuo Musashi, Florent Hequet, Dennis Arturo Ludeña Romaña, Shinichiro Kubota, Kenichi Sugitani
2010 IEEE International Conference on Information and Automation, ICIA 2010   1284-1288   Aug 2010
We statistically investigated the total PTR resource record (RR) based DNS query request packet traffic from the Internet to the top domain DNS server in a university campus network through January 1st to December 31st, 2009. The obtained results ...
SOEJIMA Yoshihito, KAWAMURA Ryo, KUBOTA Shin-Ichiro, FURUKAWA Seiichi, SUGITANI Kenichi, ROTHHUT Elies Emile
IEICE technical report   110(199) 83-86   Sep 2010
In the indoor area, getting position information by GPS is known to be difficult. Then, it before has been proposed that the indoor position information is derived from RSSI data and a probability theory. Many access points have already developed ...
Masaya Kumagai, Yasuo Musashi, Dennis Arturo Ludeña Romaña, Kazuya Takemori, Shinichiro Kubota, Kenichi Sugitani
Proceedings - 3rd International Conference on Intelligent Networks and Intelligent Systems, ICINIS 2010   645-648   Dec 2010
We performed statistical analysis on the total PTR resource record (RR) based DNS query packet traffic from a university campus network to the top domain DNS server through March 14th, 2009, when the network servers in the campus network were unde...
川村 諒, 久保田 真一郎, 副島 慶人, 古川 誠一, 杉谷 賢一
情報処理学会論文誌   52(3) 1357-1364   Mar 2011
屋内ではGPSによる位置情報取得が困難であるため,センサネットワークや無線LANのアクセスポイントを用いた位置情報を取得する研究が行われている.センサネットワークを用いた研究の多くは位置情報を取得するためにセンサが理想的に配備された実験環境で行われる.一方,情報通信基盤を目的として整備されたアクセスポイントは,位置推定の対象となるパソコンからアクセスポイントを見通すことができないなど,明らかにフェージングなどの影響を受け,位置推定を行うには不利な環境となっている.そこで,我々はフェージング...
久保田 真一郎, 島本 勝, 杉谷 賢一
大学情報システム環境研究   14 105-110   Jun 2011
Yasuo Musashi, Masaya Kumagai, Shinichiro Kubota, Kenichi Sugitani
Proceedings - 2011 4th International Conference on Intelligent Networks and Intelligent Systems, ICINIS 2011   121-124   Dec 2011
We statistically investigated the total inbound standard DNS resolution traffic from the Internet to the top domain DNS server in a university campus network through January 1st to December 31st, 2010. The following results are obtained: (1) We fo...
右田 雅裕, 杉谷 賢一, 久保田 真一郎
学術情報処理研究   (16) 80-85   2012
KUBOTA SHIN-ICHIRO, KAWAMURA RYO, SUGITANI KENICHI
IEICE technical report. Internet Architecture   111(485) 277-279   Mar 2012
In many previous studies, PC's positioning system are considered using RSS from AP at a non-LOS position. In our work, after evaluated accuracies of the position estimation, such a situation makes accuracies worse. In this report, though the RSS g...
KUBOTA SHIN-ICHIRO, KAWAMURA RYO, SUGITANI KENICHI
IEICE technical report. Social Implications of Technology and Information Ethics   111(484) 277-279   Mar 2012
In many previous studies, PC's positioning system are considered using RSS from AP at a non-LOS position. In our work, after evaluated accuracies of the position estimation, such a situation makes accuracies worse. In this report, though the RSS g...
Nobuhiro Shibata, Yasuo Musashi, Dennis Arturo Ludena Romana, Shinichiro Kubota, Kenichi Sugitani
Proceedings - 5th International Conference on Intelligent Networks and Intelligent Systems, ICINIS 2012   126-129   Dec 2012
We statistically investigated the total PTR resource record (RR) based DNS query request packet traffic from the Internet to the top domain DNS server in a university campus network through January 1st to December 31st, 2011. The obtained results ...
Yuto Takeda, Yasuo Musashi, Kenichi Sugitani, Toshiyuki Moriyama
Proceedings - 2013 6th International Conference on Intelligent Networks and Intelligent Systems, ICINIS 2013   181-184   Jan 2013
We statistically investigated the total ANY resource record (RR) based DNS query request packet traffic from the Internet to the top domain DNS server in a university campus network through January 1st, 2011 to December 31st, 2012. The obtained re...
Yasuo Musashi, Yuto Takeda, Nobuhiro Shibata, Irwan Alnarus Kautsar, Kenichi Sugitani
Information (Japan)   16 8901-8908   Jan 2013
We statistically investigated the total ANY resource record (RR) based DNS query request packet traffic from the Internet to the top domain DNS server in a university campus network through January 1st, 2011 to December 31st, 2012. The obtained re...
KUBOTA SHIN-ICHIRO, ISHIMARU MASATO, SUGITANI KENICHI
IEICE technical report. Internet Architecture   112(489) 219-222   Mar 2013
The position estimation using location fingerprints has been studied before. Location fingerprints are con- structed by the average of measured RSS value in each location. We approach to use association rules for constructing location fingerprints...
KUBOTA SHIN-ICHIRO, ISHIMARU MASATO, SUGITANI KENICHI
IEICE technical report. Social Implications of Technology and Information Ethics   112(488) 219-222   Mar 2013
The position estimation using location fingerprints has been studied before. Location fingerprints are constructed by the average of measured RSS value in each location. We approach to use association rules for constructing location fingerprints. ...
久保田 真一郎, 右田 雅裕, 杉谷 賢一
大学情報システム環境研究   16 35-42   Jul 2013
永井孝幸, 杉谷賢一, 河津秀利, 中野裕司
電子情報通信学会技術研究報告   113(355(SITE2013 50-57)) 119-128   Dec 2013
永井孝幸, 杉谷賢一, 河津秀利, 中野裕司
IPSJ SIG Notes   2013(20) 1-10   Dec 2013
In 2012, we introduced new lifelong user account KumadaiID which is uniquely assigned to individuals. On the other hand, it has been a problem to support this new account in existing CAS systems where user accounts are assigned based on roles. To ...
永井 孝幸, 杉谷 賢一, 河津 秀利, 中野 裕司
IEICE technical report. Social Implications of Technology and Information Ethics   113(355) 119-128   Dec 2013
In 2012, we introduced new lifelong user account KumadaiID which is uniquely assigned to individuals. On the other hand, it has been a problem to support this new account in existing CAS systems where user accounts are assigned based on roles. To ...
Yuto Takeda, Yasuo Musashi, Kenichi Sugitani, Toshiyuki Moriyama
International Journal of Intelligent Engineering and Systems   7 8-16   Jan 2014
We statistically investigated the total ANY resource record (RR) based DNS query request packet traffic from the Internet to the top domain DNS server in a university campus network from January 1st, 2011 to December 31st, 2012. The obtained resul...
Irwan Alnarus Kautsar, Irwan Alnarus Kautsar, Yasuo Musashi, Shin Ichiro Kubota, Kenichi Sugitani
IEEE Global Engineering Education Conference, EDUCON   784-787   Jan 2014
The Moodle REST function calls enables third party applications having access to the Moodle database's through Moodle web services and REST (Representational state transfer) protocols. The access could be as learning content creation. According to...
中野裕司, 久保田真一郎, 松葉龍一, 戸田真志, 永井孝幸, 右田雅裕, 武藏泰雄, 喜多敏博, 杉谷賢一
電子情報通信学会技術研究報告   114(277(SC2014 13)) 33-37   Oct 2014
中野裕司, 中野裕司, 中野裕司, 鶴田博信, 喜多敏博, 喜多敏博, 喜多敏博, 永井孝幸, 永井孝幸, 永井孝幸, 杉谷賢一, 杉谷賢一, 杉谷賢一
教育システム情報学会全国大会講演論文集(CD-ROM)   40th ROMBUNNO.I1-4   2015
Irwan Alnarus Kautsar, Shin Ichiro Kubota, Yasuo Musashi, Kenichi Sugitani
Proceedings of IEEE International Conference on Teaching, Assessment and Learning for Engineering: Learning for the Future Now, TALE 2014   175-178   Jan 2015
© 2014 IEEE.Directorate General Higher Education Institution of Indonesia (DGHEI), request lecturers to provide data or report their academic activities as evidence of them. Lecturers needs to make a portfolio or other document specified by DGHEI....
杉谷賢一, 中野裕司, 武藏泰雄, 辻一隆, 島本勝, 木田健
情報処理学会研究報告(Web)   2015(IOT-31) VOL.2015-IOT-31,NO.7 (WEB ONLY)   Sep 2015
右田雅裕, 永井孝幸, 武藏泰雄, 戸田真志, 中野裕司, 喜多敏博, 松葉龍一, 北村士朗, 辻一隆, 島本勝, 木田健, 杉谷賢一
学術情報処理研究(CD-ROM)   (19) 68-75   Sep 2015
Irwan Alnarus Kautsar, Yasuo Musashi, Shin Ichiro Kubota, Kenichi Sugitani
Proceedings of 2015 International Conference on Information and Communication Technology and Systems, ICTS 2015   187-191   Jan 2016
© 2015 IEEE.A lecturer's role are the important part for the success of any eLearning platform, include Moodle LMS. Because only lecturers that enrich learning materials. Unfortunately, Indonesia still faces the bandwidth gap that made difficultie...
Irwan Alnarus Kautsar, Irwan Alnarus Kautsar, Yasuo Musashi, Shin Ichiro Kubota, Kenichi Sugitani
Proceedings - 2015 International Electronics Symposium: Emerging Technology in Electronic and Information, IES 2015   223-226   Jan 2016
© 2015 IEEE.Recently, Indonesia has more than 3.000 Higher Education Institutions, 300.000 lecturers, and 7.8 million higher education students. To handle those numerous stakeholders, Directorate General Higher Education Indonesia Government (DGHE...
Irwan Alnarus Kautsar, Irwan Alnarus Kautsar, Shinichiro Kubota, Yasuo Musashi, Kenichi Sugitani
Journal of Information Processing   24 358-369   Mar 2016
© 2016 Information Processing Society of Japan.Currently, lecturers have been offered various LMS’s. The Learning Management System (LMS) could pro- vide high quality, rich and complete materials in Higher Education Institution (HEI) that use LMS ...

Books etc

 
The Educational Effects of On-line Tests on the Large-scale IT Courses
2005   
Lecturing for All 1,800 Freshmen with Presence of Lawsuits of Real Cases as Author's Right Infringements
2005   
Large Scale e-Learning Course on the Basic Course of Information Processing
2005