Publications
Journal
2015
- Kensuke Koshijima, Hideitsu Hino, Noboru Murata, "Change-Point Detection in a Sequence of Bags-of-Data", IEEE Transactions on Knowledge & Data Engineering, vol.27, no. 10, pp. 2632-2644, Oct. 2015
2013
- Norikazu Takahashi, Ryota Hibi, ``Global convergence of modified multiplicative updates for nonnegative matrix factorization,'' Computational Optimization and Applications, Vol.57, Issue 2, pp. 417-440, Aug., 2013
- Yaokai Feng, Yoshiaki Hori, Kouichi Sakurai, Junichi Takeuchi, ``A Behavior-Based Method for Detecting Distributed Scan Attacks in Darknets,'' Journal of Information Processing (JIP), Vol. 21, No.3 pp. 527-538, Information Processing Society of Japan (IPSJ), July, 2013.
International conferences
2015
- Takumi Kimura, Norikazu Takahashi, ``Global Convergence of Modified HALS Algorithm for Nonnegative Matrix Factorization", The Sixth IEEE International Workshop on Computational Advances in Multi-Sensor Adaptive Processing, Cancún, Mexico, Dec., 2015.
- Ryo Takayanagi, Yoshihiro Okada, ``Visualization System by Combinatorial Use of Edge Bundling and Treemap for Network Traffic Data Analysis", The 10th International Workshop on Information Search, Integration, and Personalization (ISIP 2015), North Dakota, America, Oct., 2015.
- Yaokai Feng, Yoshiaki Hori, Kouichi Sakurai, ``A Proposal for Detecting Distributed Cyber-Attacks Using Automatic Thresholdin", The 10th Asia Joint Conference on Information Security (AsiaJCIS 2015), Kaohsiung, Taiwan, May., 2015.
2014
- Masato Seki, Norikazu Takahashi, ``New Update Rules based on Kullback-Leibler, Gamma, and Renyi Divergences for Nonnegative Matrix Factorization,'' 2014 International Symposium on Nonlinear Theory and its Applications (NOLTA2014), Luzern, Switzerland, Sep., 2014.
- Norikazu Takahashi, Jiro Katayama, Junichi Takeuchi, ``A Generalized Sufficient Condition for Global Convergence of Modified Multiplicative Updates for NMF,'' 2014 International Symposium on Nonlinear Theory and its Applications (NOLTA2014), Luzern, Switzerland, Sep., 2014.
- Can Wang, Yao-Kai Feng, Junpei Kawamoto, Yoshiaki Hori, Kouichi Sakurai, ``A Parameterless Learning Algorithm for Behavior-Based Detection,'' 9th Asia Joint Conference on Information Security (AsiaJCIS2014), Wuhan, China, Sep., 2014.
- Kazumasa Yamauchi, Junpei Kawamoto, Yoshiaki Hori, Kouichi Sakurai, ``Extracting C&c;C Traffic by Session Classification Using Machine Learning,'' The 7th Workshop among Asian Information Security Labs (WAIS2014), Shanghai, China, Jan., 2014.
2013
- Jiro Katayama, Norikazu Takahashi, Junichi Takeuchi, ``Boundness of modified multiplicative updates for nonnegative matrix factorization,'' The fifth IEEE international workshop on computational advances in multi-sensor adaptive processing (CAMSAP2013), Saint Martin, Dec., 2013.
- Hisashi Tsuruta, Takayoshi Shoudai, ``Structure-based Data Mining and Screening for Network Traffic Data,'' IIAI-AAI, ESKM2013, Special Session on Machine Learning and Data Mining, Shimane, Japan, Aug., 2013.
- Heejae Yim, Norikazu Takahashi, Yukiko Yamauchi, Shuji Kijima, Masashi Yamashita, ``Finding Items Associated with Varied Members in a Pairwise Data Stream,'' The 16th Korea-Japan Joint Workshop on Algorithms and Computation (WAAC2013), Suwon, Korea, Jul., 2013.
- Kouhei Kubo, Yukiko Yamauchi, Shuji Kijima, Masashi Yamauchi, ``On Approximation of Normalized Compression Distance by Tree Metric for Clustering,'' The 16th Korea-Japan Joint Workshop on Algorithms and Computation (WAAC2013), Suwon, Korean, Jul., 2013.
- Kazumasa Yamauchi, Yoshiaki Hori, Kouichi Sakurai, ``Detecting HTTP-based Botnet based on Characteristic of the C&C session using by SVM,'' The 8th Asia Joing Conference in Information Security (AsiaJCIS2013), Seoul, Korea, Jul., 2013.
- Yoshihiro Okada, ``Network Data Visualization Using Parallel Coordinates Version of Time-tunnel with 2Dto2D Visualization for Intrusion Detection,'' The Ninth International Symposium on Frontiers of Information Systems and Network Applications (FINA 2013), Barcelona, Spain, Mar., 2013
- Atsushi Okamoto, Takayoshi Shoudai, ``MINING FIRST-COME-FIRST-SERVED FREQUENT TIME SEQUENCE PATTERNS IN STREAMING DATA,'' IADIS International Conference e-Society 2013 (ES2013), Lisbon, Portugal, Mar., 2013.
- Sayaka Yamauchi, Masanori Kawakita, Junichi Takeuchi, ``Botnet Detection using NMF and the MDL criterion,'' poster, 2013 International Symposium on Information Science and Electrical Engineering (ISEE2013), Fukuoka, Japan, Jan., 2013.
2012
- Sayaka Yamauchi, Masanori Kawakita, Junici Takeuchi, ``Botnet Detection Based on Non-negative Matrix Factorization and the MDL Principle,'' The 5th International Workshop on Data Mining and Cyber Security (ICONIP2012), Doha, Qatar, Nov., 2012.
- Satoru Akimoto, Yoshiaki Hori, Kouichi Sakurai, ``Collabrative Behavior Visualization and its Detection by Observing Darknet Traffic,'' The 4th International Workshop on Security (CSS2012), Melbourne, Australia, Dec., 2012.
- Kazuki Chiba, Yoshiaki Hori, Kouichi Sakurai, ``Detection of abnormal HTTP communication based on the edit distance,'' poster, The 7th International Workshop on Security (IWSEC2012), Fukuoka, Japan, Nov., 2012.
- Satoru Akimoto, Yoshiaki Kasahara, Yoshiaki Hori, Kouichi Sakurai, ``Analysis of DNS Traffic to Resolve the Same Domain for Botnet Detection,'' poster, The 7th International Workshop on Security (IWSEC2012), Fukuoka, Japan, Nov., 2012.
- Junichi Takeuchi, ``High Dimensional Data Analysis for Botnet Detection,'' invited talk, The 5th Workshop on Data Mining for Cyber Security (ICONIP2012), Doha, Qatar, Nov., 2012.
- Yaokai Feng, Yoshiaki Hori, Kouichi Sakurai, Junichi Takeuchi, ``A Behavior-based Detection Method for Outbreaks of Low-rate Attacks,'' The 12th IEEE/IPSJ International Symposium on Applications and the Internet (SAINT2012), Izmir, Turkey, Jul., 2012.
- Kazuki Chiba, Yoshiaki Hori, Kouichi Sakurai, ``Reviewing the Way to Quantifying Information Leeks on HTTP Requests and Proposing the Detection System,'' Fifth Workshop among Asian Information (WAIS2012), Pohang, Korea, Jan., 2012.
- Satoru Akimoto, Yoshiaki Kasahara, Yoshiaki Hori, Kouichi Sakurai, ``A Study of Collaborative behavior Detection and Investigating change of Attack using 3D-visualization on Observing the Darknet Traffic,'' Fifth Workshop among Asian Information Security Labs (WAIS2012), Pohang, Korea, Jan., 2012.
2011
- Ryota Hibi, Norikazu Takahashi, ``A Modified Multiplicative Update Algorithm for Euclidian Distance-Based Nonnegative Matrix Factorization and its Global Convergence,'' 2011 International Conference on Neural Information Processing, Shanghai, China, Nov., 2011.
- Yoshiro Fukushima, Yoshiaki Hori and Kouichi Sakurai, ``Proactive Blacklisting for Malisious Web Sites by Reputation Evaluation Based on Domain and IP Address Registration,'' IEEE TrustCom 2011, Changsha, China, Nov., 2011.
- Seiichiro Mizoguchi, Yoshiaki Hori, Kouichi Sakurai, ``Network-based Malware Detection by focusing on distributions of data transmission intervals,'' Informational Workshop on Security (IWSEC) 2011, Nov., 2011.
Domestic conferences
2012
- Ryota Hibi, Norikazu Takahashi, "A Modified Multiplicative Update Algorithm for Nonnegative Matrix Factorization and its Global Convergence - The Case of Divergence Minimization," Technical Committee on Circuits and Systems, Fukuoka, January, 2012
- Seiichirou Mizoguchi, Yoshiaki Hori, "Network Behavior Characterization Focused on Entropy of Data Transmission Intervals," The 29th Symposium on Cryptography and Information Security(SCIS2012), Ishikawa, January - February, 2012
- Satoru Akimoto, Yoshiaki Hori, "Collaborative Attack Detection and Investigating Transition of Attack using 3D-visualization on Observing the Darknet Traffic," The 29th Symposium on Cryptography and Information Security (SCIS2012), Ishikawa, January - February, 2012
- Sayaka Yamauchi, Masanori Kawakita, Junichi Takeuchi, "Detecting botnet activity patterns based on Non-negative Matrix Factorization and the MDL criterion," The 29th Symposium on Cryptography and Information Security (SCIS2012), Ishikawa, January - February, 2012
- Kazuki Chiba, Yoshiaki Hori, Kouichi Sakurai, "Detection System of Information Leakage on HTTP Requests Using Abnormal Values of the Entropy," IEICE General Conference 2012, Okayama, March, 2012
- Yaokai Feng, Yoshiaki Hori, Kouichi Sakurai, Junichi Takeuchi, "A Behavior-based Detection Method for Outbreaks of Low-rate Attacks," Information and Communication System Security 2012 (CSS2012), March, 2012
- Seiichirou, Kuniyasu Suzaki, Katsunari Yoshioka, Kanta Matsuura, "NDSS 2012 Symposium Report," Computer Security 57(CSEC57), Akita, May, 2012
- Satoru Akimoto, Yoshiaki Kasahara, Yoshiaki Hori, Kouichi Sakurai, "DNS traffic analysis to detect the botnet based on the query of the same domain," The 65th Joint Conference of Electrical and Electronics Engineers (JCEEE) in Kyushu, Nagasaki, Sep., 2012.
- Kazuki Chiba, Yoshiaki Hori, Kouichi Sakurai, "Detection system of attacks to the database based on the edit distance of HTTP requests," The 65th Joint Conference of Electrical and Electronics Engineers (JCEEE) in Kyushu, Nagasaki, Sep., 2012.
2011
- Ryota Hibi, Norikazu Takahashi, "A Modified Multiplicative Update Algorithm with a Stopping Criterion for NMF," The 64th Joint Conference of Electrical and Electronics Engineers(JCEEE) in Kyushu, Sage September, 2011
- Seiichirou Mizoguchi, Yoshiaki Hori, Kouichi Sakurai, "Entropy-Based Scoring of Mechanical Behaviors in Network Traffic for Detecting Bots," The 64th Joint Conference of Electrical and Electronics Engineers(JCEEE) in Kyushu, Saga September, 2011
- Kazuki Chiba, Yoshiaki Hori, Kouichi Sakurai, "Designing detection system for information leaks on HTTP," The 64th Joint Conference of Electrical and Electronics Engineers(JCEEE) in Kyushu, Saga September, 2011
- Seiichirou Mizoguchi, Yoshiaki Hori, Kouichi Sakurai, "Report of DIMVA 2011 Conference," Computer Security Symposium 2011 (CSS 2011), Niigata, October, 2011
- Kazuki Chiba, Yoshiaki Hori, Kouichi Sakurai, "Reviewing the way to quantifying information leaks on HTTP requests, and proposing the detection system," Computer Security Symposium 2011 (CSS2011), Niigata, October, 2011