MUSASHI Yasuo

J-GLOBAL         Last updated: Sep 10, 2018 at 16:38
 
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Name
MUSASHI Yasuo
Affiliation
Kumamoto University
Section
Center for Multimedia and Information Technologies, Net Communication
Job title
Associate Professor
Degree
Doctor of Philosophy, Master of Engineering

Research Areas

 
 

Academic & Professional Experience

 
Jan 2015
 - 
Today
Professor, Center for Management of Information Technologies, Kumamoto University
 
May 2014
 - 
Dec 2014
Associate Professor, Center for Management of Information Technologies, Kumamoto University
 
Apr 2007
 - 
Mar 2014
Associate Professor, Center for Multimediaof Information Technologies, Kumamoto University
 
Apr 2002
 - 
Mar 2007
Associate Professor, Center for Multimedia and Information Technologies, Kumamoto University
 
Jul 1997
 - 
Mar 2002
Assistant Professor, Information Processing Center, Kumamoto University
 

Education

 
Apr 1991
 - 
Sep 1994
Engineering Science (Chemistry), Graduate School of Science and Technology, Kumamoto University, Graduate School
 
 
 - 
1994
Graduate School, Division of National Science and Technology, Kumamoto University
 
Apr 1988
 - 
Mar 1991
Technical Chemistry, Graduate School of Technology, Kumamoto University, Graduate School
 
Apr 1984
 - 
Mar 1988
Technical Chemistry, Faculty of Engineering, Kumamoto University
 

Published Papers

 
Harry Susanto, Yasuo Musashi, Kenichi Sugitani
Proceedings of the 11th International Conference on Information and Communication Technology and System, ICTS 2017   2018-January 159-164   Jan 2018   [Refereed]
© 2017 IEEE. We carried out information security assessment in the Indonesian Nuclear Regulatory Agency (Bapeten) with developed framework (NERA) in hybridization of the COBIT5 and NIST security frameworks to calculate the score of the institution...
Yoshitsugu Matsubara, Yoshitsugu Matsubara, Yasuo Musashi
European Physical Journal Plus   132 507-518   Dec 2017   [Refereed]
© 2017, Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature. The purpose of this study is to explain fluctuations in email size. We have previously investigated the long-term correlations between email send request...
Yoshitsugu Matsubara, Yasuo Musashi
Internet and Operation Technology Symposium 2017   2017 1-8   Nov 2017   [Refereed]
We propose a model to explain frequency distribution in email size. We made frequency distribution of email size in the system log of the staff email server at a university campus. Power-law properties are recognized in the distribution. We disagg...
Yoshitsugu Matsubara, Yasuo Musashi
Physics and Society      Aug 2016
In a previous study, we investigated the frequency distribution of the email
size in the system log data of the main email server for the staff on a campus
network. We found that the frequencies of email sizes followed a power-law
distribution and...
Irwan Alnarus Kautsar, Irwan Alnarus Kautsar, Shinichiro Kubota, Yasuo Musashi, Kenichi Sugitani
Journal of Information Processing   24(2) 358-369   Mar 2016   [Refereed]
© 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 ...
松原義継, 松原義継, 武藏泰雄
情報処理学会研究報告(Web)   2016(IOT-32) 2016-IOT-32(34) (WEB ONLY)   Feb 2016
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   [Refereed]
© 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, 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   [Refereed]
© 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...
Yoshitsugu Matsubara, Yasuo Musashi
Internet and Operation Technology Symposium 2015   2015 1-5   Nov 2015   [Refereed]
We developed “uniq rate” as an outlier detection method. The uniq rate in this paper is the ratio of the kind of client or query for the number of queries to the DNS server per unit time (the number of access). If the uniq rate is not practical pr...
Yoshitsugu Matsubara, Yasuo Musashi, Kenichi Sugitani, Toshiyuki Moriyama
Proceedings - 8th International Conference on Intelligent Networks and Intelligent Systems, ICINIS 2015   145-148   Nov 2015   [Refereed]
© 2015 IEEE.We statistically investigated the total A-resource record (RR) based DNS query request packet traffic from the campus network system to the top domain DNS server in a university during January 1st to December 31st, 2014. The obtained r...
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   [Refereed]
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
松原義継, 松原義継, 武藏泰雄
情報処理学会研究報告(Web)   2015(IOT-30) VOL.2015-IOT-30,NO.4 (WEB ONLY)   Jun 2015
MUSASHI YASUO, MATSUBARA YOSHITSUGU, SUGITANI KENICHI, MORIYAMA TOSHIYUKI
IEICE technical report. Social Implications of Technology and Information Ethics   114(494) 19-23   Mar 2015
We statistically investigated the total A-resource record (RR) based DNS query request packet traffic from the campus network to the top domain DNS server in a university during January 1st to December 31st, 2014. The obtained results are: (1) we ...
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   [Refereed]
© 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....
松原 義継, 武藏 泰雄
インターネットと運用技術シンポジウム2014論文集   2014 71-77   Nov 2014   [Refereed]
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
MORIYAMA Toshiyuki, Izumi Shinobu, MORISITA Matsunori, NISHIYAMA Koji, WATANABE Ryoichi, SHIMATANI Yukihiro, KAWAKITA Masaru, MUSASHI Yasuo
IEICE technical report. ASN, Ambient intelligence and sensor networks   114(65) 51-52   May 2014
To realize the distributed multi-purpose civil dam, we developed a smart rainwater tank by using mesh network.
森山聡之, 西山浩司, 和泉信生, 森下功啓, 渡辺亮一, 武藏泰雄, 河喜多勝
West Jpn NDIC News (Natural Disaster Inf Cent West Jpn)   (50) 41-45   Mar 2014
Yuto Takeda, Yasuo Musashi, Kenichi Sugitani, Toshiyuki Moriyama
International Journal of Intelligent Engineering and Systems   7(1) 8-16   Jan 2014   [Refereed][Invited]
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   [Refereed]
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...
永井孝幸, 松葉龍一, 久保田真一郎, 喜多敏博, 北村士朗, 右田雅裕, 武藏泰雄, 杉谷賢一, 戸田真志, 中野裕司
学術情報処理研究   (17) 67-76   Sep 2013   [Refereed]
森山聡之, 和泉信生, 森下功啓, 西山浩司, 武藏泰雄, 渡辺亮一, 河喜多勝
電子情報通信学会大会講演論文集(CD-ROM)   2013 ROMBUNNO.AS-4-1   Sep 2013
Moriyama Toshiyuki, Izumi Shinobu, Morishita Katsuhiro, Nishiyama Koji, Musashi Yasuo, Watanabe Ryoichi, Kawakita Masaru
Proceedings of the Society Conference of IEICE   2013 "S-38"-"S-39"   Sep 2013
久保田真一郎, 右田雅裕, 杉谷賢一, 武藏泰雄, 永井孝幸, 戸田真志, 喜多敏博, 松葉龍一, 辻一隆, 島本勝, 木田健, 牧野賢治, 木村周平, 山口貴裕, 中野裕司
大学情報システム環境研究   16 35-42   Jul 2013
MUSASHI YASUO, TAKEDA YUTO, SHIBATA NOBUHIRO, KUBOTA SHINICHIRO, SUGITANI KENICHI
IEICE technical report. Social Implications of Technology and Information Ethics   112(488) 67-70   Mar 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...
MUSASHI YASUO, TAKEDA YUTO, SHIBATA NOBUHIRO, KUBOTA SHINICHIRO, SUGITANI KENICHI
IEICE technical report. Internet Architecture   112(489) 67-70   Mar 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 res...
久保田真一郎, 右田雅裕, 杉谷賢一, 武藏泰雄, 永井孝幸, 戸田真志, 入口紀男, 喜多敏博, 松葉龍一, 辻一隆, 島本勝, 木田健, 中野裕司
情報処理学会研究報告(CD-ROM)   2012(5) ROMBUNNO.CE-117,NO.13   Feb 2013
Yasuo Musashi, Yuto Takeda, Nobuhiro Shibata, Irwan Alnarus Kautsar, Kenichi Sugitani
Information (Japan)   16(12(B)) 8901-8908   Jan 2013   [Refereed][Invited]
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...
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   [Refereed]
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...
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   [Refereed]
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 ...
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   [Refereed]
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...
Evaluation of SSH Dictionary Attack Traffic in Campus Network
Masaya Kumagai, Yasuo Musashi, Dennis Arturo Ludeña Romaña
International Journal of Intelligent Engineering and Systems   3(4) 17-23   Dec 2010   [Refereed][Invited]
Masaya Kumagai, Yasuo Musashi, Dennis Arturo Ludeña Romaña
International Journal of Intelligent Engineering and Systems   3 17-23   Dec 2010   [Refereed]
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...
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   Nov 2010   [Refereed]
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...
DNS Based Detection of SSH Dictionary Attack in Campus Netowrk
4. Dennis Arturo Ludeña Romaña, Yasuo Musashi, Kazuya Takemori, Masaya Kumagai, Shinichiro Kubota
Information   13(3(A)) 701-707   Oct 2010   [Refereed][Invited]
Cost-Considered Campus Whole Area Gigabit Network System
Masahiro Migita, Kenichi Sugitani, Shinichiro Kubota, Yasuo Musashi, Takayuki Nagai, Norio Iriguchi, Toshihiro Kita, Ryuichi Matsuba, Kazutaka Tsuji, Masaru Shimamoto, Takeshi Kida, Tsuyoshi Usagawa, Hiroshi Nakano
Journal for Academic Computing and Networking   14(1) 48-55   Sep 2010   [Refereed]
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   [Refereed]
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 ...
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   153-158   Jul 2010   [Refereed]
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 ...
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 ...
DNS-based Spam Bots Detection in a University
Dennis Arturo Ludeña Romaña, Shinichiro Kubota, Keinchi Sugitani and Yasuo Musashi
International Journal of Intelligent Engineering and Systems   2(3) 11-18   Dec 2009   [Refereed][Invited]
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   [Refereed]
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
ICINIS 2009 - Proceedings of the 2nd International Conference on Intelligent Networks and Intelligent Systems   246-249   Nov 2009   [Refereed]
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 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 ...
Developments and evaluations for the presence-type attendance management system in PC used practical lectures
Shinichiro Kubota, Kenichi Sugitani, Yasuo Musashi, Hiroshi Nakano, Takayuki Nagai, Norio Iriguchi, Masahiro Migita, Toshihiro Kita, Ryuichi Matsuba, Kazutaka Tsuji, Masaru Shimamoto, Takeshi Kida, Tsuyoshi Usagawa
Journal for Academic Computing and Networking   13(1) 24-31   Sep 2009   [Refereed]
Detection of NS Resource Record DNS Resolution Traffic, Host Search, and SSH Dictionary Attack Activities
Kazuya Takemori, Dennis Arturo Ludeña Romaña, Shinichiro Kubota, Keinchi Sugitani and Yasuo Musashi
International Journal of Intelligent Engineering and Systems   2(4) 35-42   Jun 2009   [Refereed][Invited]
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   [Refereed]
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 ...
DNS Based Security Incidents Detection in Campus Network
Dennis Arturo Ludeña Romaña, Keinchi Sugitani and Yasuo Musashi
International Journal of Intelligent Engineering and Systems   1(1) 17-21   Nov 2008   [Refereed][Invited]
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...
Statistical Study of Unusual DNS Query Traffic
Dennis Arturo Ludeña Romaña, Yasuo Musashi, HIrofumi Nagatomi, and Keinchi Sugitani
ECTI Transactions on Computer and Information Technology (ECTI-CIT) Special Issue in Information Technology   6(2) 106-109   Jun 2008   [Refereed][Invited]
Entropy Based Analysis of DNS Query Traffic in the Campus Network
Dennis Arturo Ludeña Romaña, Yasuo Musashi
Journal of Systemics, Cybernetics and Informatics   6(5) 42-44   Jun 2008   [Refereed][Invited]
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...
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...
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   [Refereed]
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 ...
Kitamura Shirou, Usagawa Tsuyoshi, Sugitani Kenichi, Nakano Hiroshi, Kita Toshihiro, Iriguchi Norio, Matsuba Ryuichi, Musashi Yasuo, Migita Masahiro, Kubota Shinichirou
Computer & Education   25(0) 12-17   2008   [Refereed]
We have a couple of courses,"Basic Course of Information Technologies A and B"for all the fresh students in Kumamoto University. In the courses, we, especially provide online assessment tests,"Confirmation Test"in which the students can take an on...
Dennis Arturo Ludeņa Romaņa, Yasuo Musashi
CITSA 2007 - Int. Conference on Cybernetics and Information Technologies, Systems and Applications and CCCT 2007 - Int. Conference on Computing, Communications and Control Technologies, Proceedings   1 162-164   Dec 2007   [Refereed]
We carried out the entropy based study on the DNS query traffic from the campus network in a university through January 1st, 2006 to March 31st, 2007. The results arc summarized, as follows: (1) The source IP addresses- and query keyword-based ent...
Dennis Arturo Ludeña Romaña, Yasuo Musashi, Hirofumi Nagatomi, Kenichi Sugitani
ISCIT 2007 - 2007 International Symposium on Communications and Information Technologies Proceedings   592-595   Dec 2007   [Refereed]
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...
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...
Synchronous Online Tests as Term-End Examinations using LMS
Masahiro Migita, Kenichi Sugitani, Ryuiichi Matsuba, Hiroshi Nakano, Toshihiro Kita, Norio Iriguchi, Yasuo Musashi, Kazutaka Tsuji, Masaru Shimamoto, Takeshi Kida, Tsuyoshi Usagawa
Journal for Academic Computing and Networking   10(1) 14-21   Sep 2007   [Refereed]
Detection of Bot Worm-Infected PC Terminals
Dennis Arturo Ludeña Romaña, Yasuo Musashi
Information   10(5) 673-686   Mar 2007   [Refereed][Invited]
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   [Refereed]
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...
NAGATOMI HIROFUMI, LUDENA ROMANA DENNIS ARTONA, 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)   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...
A Report of current status for IT education on elementary and secondary schools
Ryuichi Matsuba, Kenichi Sugitani, Toshihiro Kita, Masahiro Migita, Hiroshi Nakano, Norio Iriguchi, Yasuo Musashi, Shirou Kitamura, Junko Nemoto, Kazutaka Tsuji, Takeshi Kita, Masaru Shimamoto, Tsuyoshi Usagawa,
Journal for Academic Computing and Networking   10(1) 15-20   Sep 2006   [Refereed]
A DNS-based Countermeasure Technology for Bot Worm-infected PC terminals in the Campus Network
Dennis Arturo Ludeña Romaña, Hirofumi Nagatomi, Yasuo Musashi, Ryuichi Matsuba, and Kenichi Sugitani
Journal for Academic Computing and Networking   10(1) 39-46   Sep 2006   [Refereed]
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
Detection and Prevention of DNS Query PTR record-based Distributed Denial-of-Service Attack
Yasuo Musashi, Ryuichi Matsuba, Kenichi Sugitani, and Kai Rannenberg
Information   9(2) 339-349   Jun 2006   [Refereed][Invited]
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    Dec 2005   [Refereed]
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...
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...
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   [Refereed]
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, RANNENBERG Kai
IPSJ SIG Technical Reports, Computer Security 27th   2004(129) 39-44   Dec 2004
We have developed a new detection system of IP addresses of the mass mailing worm (MMW)-infected PC terminals by only watching the domain name system (DNS) query access between the DNS server and the PC terminals.
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...
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...
Construction of Regional Cooperation Activities Support System Combined Television Conference and Streaming Distribution
Takeshi Kyan, Yasushi Ohta, Hiroshi Nakano, Toshihiro Kita, Ryuichi Matsubuta, Kenichi Sugitani, Yasuo Musashi, Masaru Shimamoto, Takeshi Kida, Norio Iriguchi
Journal for Academic Computing and Networking   7(1) 33-42   Sep 2003   [Refereed]
Statistical Analysis in Log Files of Electronic-Mail Server and Domain Name System Server
Yasuo Musashi, Ryuichi Matsuba, and Kenichi Sugitani
Journal for Academic Computing and Networking   7(1) 5-11   Sep 2003   [Refereed]
MUSASHI YASUO, MATSUBA RYUICHI, SUGITANI KENICHI
IPSJ SIG Notes, Computer Secuirty 20th   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...
MUSASHI YASUO, SUGITANI KENICHI, MATSUBA RYUICHI
IPSJ SIG Notes   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),...
Shigeyoshi Sakaki, Shigeyoshi Sakaki, Saori Yamaguchi, Yasuo Musashi, Manabu Sugimoto
Journal of Organometallic Chemistry   635 173-186   Oct 2001   [Refereed]
M2(EH2)2(P2)2 (M=Pd or Pt; E=Si or Ge; P2=(PH3)2 or diphosphinoethane (H2PCH2CH2PH2; dipe)) was theoretically investigated with the DFT method. Natural bond orbital (nbo) analysis and the laplacian of electron density indicate that Pt2(SiH2)2(P2)2...
Shigeyoshi Sakaki, Bishajit Biswas, Yasuo Musashi, Manabu Sugimoto
Journal of Organometallic Chemistry   611 288-298   Oct 2000   [Refereed]
The B-C bond in (HO)2B-CH3 is stronger than the C-C bond in ethane, because a hyperconjugation interaction is formed between boryl pπ orbital and C-H bonding orbital of CH3. The M-B(OH)2 bond (M = Pd or Pt) is also stronger than the M-CH3 bond, be...
Yasuo Musashi and Shigeyoshi Sakaki
Journal of the American Chemical Society   122(16) 3867-3887   Jun 2000   [Refereed]
Yasuo Musashi, Shigeyoshi Sakaki
Journal of the American Chemical Society   122(16) 3867-3877   Apr 2000   [Refereed]
Ruthenium-catalyzed hydrogenation of CO2 into formic acid was theoretically investigated with the DFT(B3LYP) method, where cis- RuH2(PH3)4 was adopted as a catalyst model. Theoretical calculations show that (1) CO2 insertion into the Ru-H bond occ...
S. Sakaki, N. Mizoe, M. Sugimoto, Y. Musashi
Coordination Chemistry Reviews   190-192 933-960   Dec 1999   [Refereed]
All the elementary steps involved in platinum(0)-catalyzed hydrosilylation of ethylene were theoretically investigated in detail with ab initio MO/MP2-MP4(SDQ) and CCD methods. Several important results are summarized as follows: (1) the Si-H oxid...
Shigeyoshi Sakaki, Nobuteru Mizoe, Yasuo Musashi, Manabu Sugimoto
Journal of Molecular Structure: THEOCHEM   461-462 533-546   Apr 1999   [Refereed]
Pt(PH3)2-catalyzed hydrosilylation of ethylene involving cis-trans isomerization of PtH(SiH3)(PH3)2 was theoretically investigated with ab initio MO/MP2-MP4SDQ and CCD methods. The cis-trans isomerization via Berry's pseudo-rotation mechanism occu...
Shigeyoshi Sakaki, Nobuteru Mizoe, Yasuo Musashi, Bishajit Biswas, Manabu Sugimoto
Journal of Physical Chemistry A   102 8027-8036   Oct 1998   [Refereed]
A theoretical study of oxidative additions of H-CH3, CH3-CH3, H-SiR3, and SiR3-CH3 (R=H, Cl, or Me) to Pt(PH3)2 was carried out with ab initio MO/MP2-MP4SDQ, CCD, and CCSD methods. The oxidative addition reactions of C-H and Si-H σ-bonds occur thr...
Insertion of Carbon Dioxide into a Rhodium(III)-Hydride Bond. A Theoretical Study
Yasuo Musashi, Shigeyoshi Sakaki
Journal of the Chemical Society, Dalton Transaction   (3) 577-583   1998   [Refereed]
Shigeyoshi Sakaki, S. Yamaguchi, Yasuo Musashi, and M. Sugimoto
Journal of the Organometallic Chemistry   635(1) 173-186   Jun 1997   [Refereed]
Shigeyoshi Sakaki, Masahiro Ogawa, Yasuo Musashi
Journal of Organometallic Chemistry(Elsevier)   535(1/2) 25-28   May 1997   [Refereed]
Model compounds of intermediates and transition states involved in the Pt-catalyzed disilylation of alkene were optimized with the energy gradient method and the energy changes along this catalytic reaction were calculated with the ab initio MO/MP...
Shigeyoshi Sakaki, Yasuo Musashi
International Journal of Quantum Chemistry   57 481-491   Dec 1996   [Refereed][Invited]
Insertion of CO2 into the transition metal-hydride bond of [RhIIIH2(PH3)3]+, CuIH(PH3)3 and RhIH(PH3)3 was theoretically investigated with ab initio MO/MP4, SD-CI, and CCD methods. The geometries of reactants, transition states (TS), and products ...
Shigeyoshi Sakaki, Masahiro Ogawa, Yasuo Musashi
Journal of Physical Chemistry   99 17134-17138   Dec 1995   [Refereed]
Dinuclear d10 metal complexes such as Pt2(PH3)4, PtPd(PH3)4, and Pd2(PH3)4 were theoretically investigated with the ab initio MO method. Size-consistent MP4SDQ and coupled cluster methods yield similar metal-metal bond energy (DE), while the SD-CI...
Shigeyoshi Sakaki, Yasuo Musashi
Inorganic Chemistry   34 1914-1923   Dec 1995   [Refereed]
Ab initio MO/MP4, SD-CI, and CCD (coupled cluster (doubles)) calculations are carried out on the insertion reactions of CO2 and C2H4 into the Cu-R (R = H, CH3, and OH) bond. The insertion into the Cu-CH3 bond occurs with a higher activation energy...
Yasuo Musashi, Taisuke Hamada, Shigeyoshi Sakaki
Journal of the American Chemical Society   117 11320-11326   Nov 1995   [Refereed]
N-Carboxyimidazolidone (1) and O-carboxyimidazolidone (2) were theoretically investigated as a model of carboxybiotin. The planar structure of 1 including CO2 on the molecular plane is more stable than the perpendicular one by 5.0 kcal/mol (MP4SDQ...
Shigeyoshi Sakaki, Masahiro Ogawa, Yasuo Musashi, Toru Arai
Inorganic Chemistry   33 1660-1665   Dec 1994   [Refereed]
Oxidative addition of the Si-X σ-bond (X = H, C, Si) to Pd(PH3)2 is theoretically investigated with the ab initio MO/MP4 method. The activation barrier (Ea) and the energy of reaction (ΔE) estimated at the MP4(SDQ) level are 13.5 and 18.1 (19.6 an...
Shigeyoshi Sakaki, Yasuo Musashi
Journal of the Chemical Society, Dalton Transactions   3047-3054   Dec 1994   [Refereed]
The insertion of CO2into the RhI-H bond of [RhH(PH3)3] was investigated theoretically by the ab initio molecular-orbital method, in which geometries of the reactants, the transition state and products were optimized at the Hartree-Fock level, and ...
Shigeyoshi Sakaki, Masahiro Ogawa, Yasuo Musashi, Toru Arai
Journal of the American Chemical Society   116 7258-7265   Aug 1994   [Refereed]
Insertion reactions of C2H4 into the Pt-H and Pt-SiH3 bonds of a platinum(II) hydride silyl ethene complex, PtH(SiH3)(PH3)(C2H4), are investigated with the ab initio MO/MP4SDQ method. When the H ligand lies at the position trans to C2H4, C2H4 is i...
Shigeyoshi Sakaki, Kenji Kato, Tomonori Miyazaki, Yasuo Musashi, Katsutoshi Ohkubo, Hirotaka Ihara, Chuichi Hirayama
Journal of the Chemical Society, Faraday Transactions   89 659-664   Dec 1993
Ab initio SCF/MP2 potentials are calculated on benzene-methane and benzene-benzene complexes. Although no energy stabilization appears at the Hartree-Fock level, a small but non-negligible stabilization in energy is observed at the MP2 level in bo...
Shigeyoshi Sakaki, Yasuo Musashi, Katsutoshi Ohkubo
Journal of American Chemical Society   115 1515-1519   Dec 1993   [Refereed]
The decarboxylation reaction of 2-lactylthiazolium is investigated with AMI and ab initio MO/MP2 methods. The calculated activation barrier Ea is extremely small, while the calculated exothermicity Eexo is considerably large: Ea = 1.5 (AMI), 3.9 (...
Shigeyoshi Sakaki, Kenji Kato, Tomonori Miyazaki, Yasuo Musashi, Katsutoshi Ohkubo, Hirotaka Ihara, Chuichi Hirayama
Journal of the Chemical Society, Faraday Transactions   89 659-664   Dec 1993   [Refereed]
Ab initio SCF/MP2 potentials are calculated on benzene-methane and benzene-benzene complexes. Although no energy stabilization appears at the Hartree-Fock level, a small but non-negligible stabilization in energy is observed at the MP2 level in bo...

Misc

 
Detection of Mass Mailing Worm-infected IP address by Analysis(共著)
IPSJ SIG Technical Reports, Distributed System and Mangement 32nd   2004(37) 67'   2004
Statistical Analysis in Syslog Files in DNS and Spam SMTP Relay Servers(共著)
IPSJ DSM Symposium Series   2004(3) 31'   2004
Construction of Ubiquitous Computing with Campus Wireless Network System
8 17-24   2004
DNS Query Access and Backscattering SMTP Distributed Denial-of-Service Attack
IPSJ DSM Symposium Series   2004(16) 45-49   2004
Detection and Prevention of DNS Query PTR record-based Distributed Denial-of-Service Attack
Proceeding for the 3rd International Conference on Information (Info'2004)   368-371   2004
Indirect Detection of Mass Mailing Worm-Infected PC terminals for Learners
Proceeding for the 3rd International Conference on Emerging Telecommunications Technologies and Applicatications (ICETA2004)   233-237   2004
Workaround for Welchia and Sasser Internet Worms in Kumamoto University
Journal for Academic Computing and Networking   8(1) 5-8   2004
System and Staff Organizing to Enable All the Students of All the Faculties to Learn Information Technology Basics up to a Uniform Level(共著)
Frontier In Education   FIE03-21-26(1) 21'   2003
Cooperation Acitivities Support System Combined Television Conference and Streaming Distribution(共著)
Journal for Academic Computing and Networking   7(1) 33'   2003
Statistical Analysis in Log Files of Electronic-Mail Server and Domain Name System Server. SPAM Mail Generates Many DNSQuery Packets (共著)
Journal for Academic Computuing and Networking   7(1) 5'   2003
Traffic Analysis on a Domain Name System Server. SMTP AccessGenerates Many Name-Resolving Packets to a Greater Extent thanDoes POP3 Access.
Journal of Academic Computing and Networking   6(1) 21-28   2002
Insertion of carbon dioxide into a rhodium(III) -hyohide bond : a theoretical study
Journal of Chemical Society, Dalton Transaction   577   1997
International Journal of Quantum Chemistry, Quantum Chemistry Symposium      1996
Journal of American Chemical Society   117 11320   1995
The Insertion Reaction of CO2 Into a Rh(I)-H Bond. An Ab Initio MO Study
Abstracts of The 30th International Conference on Coordination Chemistry      1994
Activation and Its Catalysis of transition-Metal Complexes. An Ab Initio MO Study
IMS Center Report   (15)    1994
Journal of American Chemical Society   116(7258)    1994
An ab Initio MO Study of CO2 Insertion Into a Rh(I)-H Bond
Journal of Chemical Society Dalton Transaction      1994
Enzyme and Coenzyme. An ab Initio MO Study
IMS Center Report   (14)    1993

Conference Activities & Talks

 
Yoshitsugu Matsubara, Yasuo Musashi
Internet and Operation Technology Symposium 2017   7 Dec 2017   
We propose a model to explain frequency distribution in email size. We made frequency distribution of email size in the system log of the staff email server at a university campus. Power-law properties are recognized in the distribution. We disagg...
Harry Susanto, Yasuo Musashi, Kenichi Sugitani
International Conference on Information and Communication Technology and Systems, ICTS 2017   31 Oct 2017   
We carried out information security assessment in the Indonesian Nuclear Regulatory Agency (Bapeten) with developed framework (NERA) in hybridization of the COBIT5 and NIST security frameworks to calculate the score of the institutional security a...
松原 義継, 武藏 泰雄
電子情報通信学会技術研究報告 = IEICE technical report : 信学技報   3 Mar 2016   
松原 義継, 武藏 泰雄
電子情報通信学会技術研究報告 = IEICE technical report : 信学技報   3 Mar 2016   
Irwan Alnarus Kautsar, Yasuo Musashi, Shin Ichiro Kubota, Kenichi Sugitani
Proceedings of 2015 International Conference on Information and Communication Technology and Systems, ICTS 2015   12 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   12 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...
右田 雅裕, 永井 孝幸, 武藏 泰雄
学術情報処理研究 Journal for academic computing and networking   28 Sep 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   1 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....
松原 義継, 武藏 泰雄
インターネットと運用技術シンポジウム2014論文集   27 Nov 2014   
MORIYAMA Toshiyuki, Izumi Shinobu, MORISITA Matsunori, NISHIYAMA Koji, WATANABE Ryoichi, SHIMATANI Yukihiro, KAWAKITA Masaru, MUSASHI Yasuo
IEICE technical report. ASN, Ambient intelligence and sensor networks   22 May 2014   
To realize the distributed multi-purpose civil dam, we developed a smart rainwater tank by using mesh network.
Irwan Alnarus Kautsar, Irwan Alnarus Kautsar, Yasuo Musashi, Shin Ichiro Kubota, Kenichi Sugitani
IEEE Global Engineering Education Conference, EDUCON   1 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...
Moriyama Toshiyuki, Izumi Shinobu, Morishita Katsuhiro, Nishiyama Koji, Musashi Yasuo, Watanabe Ryoichi, Kawakita Masaru
Proceedings of the Society Conference of IEICE   3 Sep 2013   
Yuto Takeda, Yasuo Musashi, Kenichi Sugitani, Toshiyuki Moriyama
Proceedings - 2013 6th International Conference on Intelligent Networks and Intelligent Systems, ICINIS 2013   1 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...
Nobuhiro Shibata, Yasuo Musashi, Dennis Arturo Ludena Romana, Shinichiro Kubota, Kenichi Sugitani
Proceedings - 5th International Conference on Intelligent Networks and Intelligent Systems, ICINIS 2012   1 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 ...
Traffic Analysis on Mass Mailing Worm and DNS/SMTP.
IPSJ SIG Notes, Computer Secuirty 19th   2002   

Research Grants & Projects

 
Developing and Assessment Study of Next-to-Next Statistical Anomaly Intrusiton Detection System
Project Year: 1994