Official page (in Japanese)
Google Scholar

Contact
Journal Papers
Conference and Workshop Papers
Technical Reports and Talks
Standards
Reviews

Contact

Copies are available on request to:

Journal Papers

  1. Keisuke Ishibashi, Tsuyoshi Kondoh, Mashiro Maruyoshi, and Takeshi Kuwahara, "Identifying Anomalous Traffic using Dynamic Programing based Differential Analysis," IEICE Commun. Express., accepted.

  2. Tatsuya Mori, Takeru Inoue, Akihiro Shimoda, Kazumichi Sato, Keisuke Ishibashi, and Shigeki Goto, “Statistical Estimation of the Names of HTTPS Servers with Domain Name Graphs,” Computer Communications, Elsevier Science, Available online, February 2016.

  3. Noriaki Kamiyama, Yousuke Takahashi, Keisuke Ishibashi, Kohei Shiomoto, Tatsuya Otoshi, Yuichi Ohsita, and Masayuki Murata, "Effective Flow Aggregation for Traffic Engineering," IEICE Transactions on Communications, Vol. E98-B, pp. 2049-2059, Oct. 2015.

  4. Tatsuya Otoshi, Yuichi Ohsita, Masayuki Murata, Yousuke Takahashi, Keisuke Ishibashi, Kohei Shiomoto, "Traffic Prediction for Dynamic Traffic Engineering," Computer Networks Vol. 85, pp.36-50, Jul. 2015.

  5. Tatsuya Otoshi, Yuichi Ohsita, Masayuki Murata, Yousuke Takahashi, Noriaki Kamiyama, Keisuke Ishibashi, Kohei Shiomoto, and Tomoaki Hashimoto "Traffic Engineering Based on Model Predictive Control," IEICE Transactions on Communications, Vol. E98-B, pp. 996-1007, Jun. 2015.

  6. Ryoichi Kawahara, Tetsuya Takine, Tatsuya Mori, Noriaki Kamiyama, Keisuke Ishibashi, ``Mean-Variance Relationship of the Number of Flows in Traffic Aggregation and Its Application to Traffic Management,'' Computer Networks, Elservier, Volume 57, Issue 6, pp. 1560--1576, April 2013.

  7. Kazumichi Sato, Tsuyoshi Toyono, Keisuke Ishibashi, Haruhisa Hasegawa, and Hideaki Yoshino, ``Extending Black Domain Name List by Using Co- occurrence Relation between DNS Queries,'' IEICE Trans. Commun., vol.E95-B, no.03, pp.794-802, Mar. 2012. [IEICE Transactions Online]

  8. Keisuke Ishibashi, Ryoichi Kawahara, Tatsuya Mori, Tsuyoshi Kondoh, Shoichiro Asano, ``Effects of Sampling and Spatio/Temporal Granularity in Traffic Monitoring on Anomaly Detectability,'' IEICE Trans. Commun.. vol.E95-B, no.02,pp.466-476, Feb. 2012. [IEICE Transactions Online]

  9. Ryoichi Kawahara, Keisuke Ishibashi, Tatsuya Mori, Noriaki Kamiyama, Shigeaki Harada, Haruhisa Hasegawa, Shoichiro Asano, ``Detection Accuracy of Network Anomalies Using Sampled Flow Statistics,'' International Journal of Network Management, Wiley, vol. 21, issue 6, pp.513-535, November/December 2011. [Wiley Online Library]

  10. Atsushi Kobayashi, Shingo Kashima, Hiroshi Kurakami, and Keisuke Ishibashi, ``Traffic Monitoring System based on Correlation between BGP Messages and Traffic Data,'' IEICE Trans. Commun., vol.E94-B, no.09,pp.2532-2542,Sep. 2011. [IEICE Transactions Online]

  11. Atsushi Kobayashi, Keisuke Ishibashi, ``VoIP Quality Measurement System using Flow Mediation for Large-Scale IP Networks,'' IEICE Trans. Commun., vol.E94-B, no.07,pp.1973-1981,Jul. 2011. [IEICE Transactions Online]

  12. Masaki Aida, Naoto Miyoshi and Keisuke Ishibashi, ``A Change-of-Measure Approach to Per-Flow Delay Measurement Systems Combining Passive and Active Methods: On the Mathematical Formulation of CoMPACT Monitor,'' IEEE Transactions on Information Theory, vol. 54, issue 11, pp. 4946-4965, November 2008. [IEEE Xplore]

  13. Keisuke Ishibashi, Tatsuya Mori, Ryoichi Kawahara, Yutaka Hirokawa, Atsushi Kobayashi, Kimihiro Yamamoto, Hitoaki Sakamoto, and Shoichiro Asano, ``Finding Cardinality Heavy-Hitters in Massive Traffic Data and Its Application to Anomaly Detection,'' IEICE Trans. Commun., vol.E91-B, no.5, pp.1331--1339, May 2008. [IEICE Transactions Online]

  14. Ryoichi Kawahara, Keisuke Ishibashi, Tatsuya Mori, Noriaki Kamiyama, and Hideaki Yoshino, ``Packet Sampling TCP Flow Rate Estimation and Performance Degradation Detection Method,'' IEICE Trans. Commun., vol.E91-B, no.5, pp.1309--1319, May 2008. [IEICE Transactions Online]

  15. Dinh-Dung Luong, Attila Vidacs, Trang Dinh Dang, Daisuke Satoh, Keisuke Ishibashi, ``Unicast probing techniques for estimation of shared loss rate,'' International Journal of Communication Systems (IJCS), Wiley, vol. 20, issue 5 ,pp. 613 -- 632, May 2007. [Wiley Online Library]

  16. Keisuke Ishibashi, Ryoichi Kawahara, Takuya Asaka, Masaki Aida, Satoshi Ono, and Shoichiro Asano, ``Detection of TCP Performance Degradation Using Link Utilization Statistics, '' IEICE Trans. Commun., vol.E89-B, no.1, pp.47-56, January 2006. [IEICE Transactions Online]

  17. Ryoichi kawahara, Keisuke Ishibashi, Tatsuya Mori, Toshihisa Ozawa, and Takeo Abe, ``Method of Bandwidth Dimensioning and Management for Aggregated TCP Flows with Heterogeneous Access Links, '' IEICE Trans. Commun., vol.E88-B, no.12, pp.4605-4615, December 2005. [IEICE Transactions Online]

  18. Ryoichi Kawahara, Keisuke Ishibashi, Takuya Asaka, and Takeo Abe, ``A Method of Bandwidth Dimensioning and Management Using Flow Statistics,'' IEICE Trans. Commun., vol.E88-B, no.2, pp.643-653, Feburary 2005. [IEICE Transactions Online]

  19. Keisuke Ishibashi, Toshiyuki Kanazawa, Masaki Aida and Hiroshi Ishii, ``Active/Passive Combination-type Performance Measurement Method Using Change-of-measure Framework'', Computer Communications, Elsevier Science, vol.27, no. 9, pp.868-879, June 2004. [Science Direct]

  20. Masaki Aida, Keisuke Ishibashi, Hiroyoshi Miwa, Chisa Takano and Shin-ichi Kuribayashi, ``Structure of Human Relations and User-dynamics Revealed by Traffic Data,'' IEICE Transactions on Inf.&Syst. (Special Issue on Human Communication), vol. E87-D, no. 6, pp.1454-1460 June 2004. [IEICE Transactions Online]

  21. Keisuke Ishibashi, Mika Ishizuka, Masaki Aida and Shin-ichi Kuribayashi, ``Capacity Dimensioning of VPN Access Links for Elastic Traffic in the Hose Model '', IEICE Trans. Commun., vol.E87-B, no.1, pp.132-141, January 2004. [IEICE Transactions Online]

  22. Ryoichi Kawahara, Keisuke Ishibashi, Takuya Asaka, and Katsunori Ori, ``A Method of IP Traffic Management Using the Relationship between TCP Flow Behavior and Link Utilization'', IEICE Trans. Commun., vol.E86-B, no.11, pp.3244-3256, November 2003. [IEICE Transactions Online]

  23. Keisuke Ishibashi, Masaki Aida, Shin-ichi Kuribayashi, ``Proposal and Evaluation of Method to Estimate Packet Loss-Rate Using Correlation of Packet Delay and Loss,'' IEICE Trans. Inf.&Syst., Special Issue on New Technologies in the Internet and their Applications, vol.E86-D, no.11, pp.2371-2379, November 2003. [IEICE Transactions Online]

  24. Ryoichi Kawahara, Keisuke Ishibashi, Toshiyuki Hirano, Hiroshi Saito, Hisaki Ohara, Daisuke Satoh, Shoichiro Asano, and Jun Matsukata, ``Traffic Measurement and Analysis in an ATM-based Internet Backbone'', Computer Communications, Elsevier Science, vol.24, no. 15/16, pp.1508-1524, October 2001. [Science Direct]

  25. Keisuke Ishibashi, Takumi Kimura, Toshihisa Ozawa, ``A Measurement-based Performance Evaluation Method for IP Networks and Its Implementation,'' Telecommunication Systems, Kluwer Academic Publishers, vol.15, no.1/2, pp.203-215, November 2000. [Springer Link]

Conference/Workshop Papers

  1. Yousuke Takahashi, Keisuke Ishibashi, Masayuki Tsujino, Noriaki Kamiyama, Kohei Shiomoto, Tatsuya Otoshi, Yuichi Ohsita, and Masayuki Murata, “Separating Predictable and Unpredictable Flows via Dynamic Flow Mining for Effective Traffic Engineering,” IEEE ICC 2016, May 2016,Kuala Lumpur, Malaysia.

  2. Akio Watanabe, Keisuke Ishibashi, Tsuyoshi Toyono, Tatsuaki Kimura, Keishiro Watanabe, Yoichi Matsuo, and Kohei Shiomoto, "Workflow Extraction for Service Operation using Multiple Unstructured Trouble Tickets" IEEE/IFIP Network Operations and Management Symposium (NOMS) 2016 (Mini-conference), April 2016, Istanbul, Turkey.

  3. A. Shimoda, K. Ishibashi, K. Sato, M. Tsujino, T. Inoue, M. Shimura,T. Takebe, K. Takahashi, T. Mori, and S. Goto, “Inferring Popularity of Domain Names with DNS Traffic: Exploiting Cache Timeout Heuristics,” Proceedings of the IEEE Global Communications Conference (GLOBECOM2015), December 2015, San Diego CA, US.

  4. Tatsuaki Kimura, Akio Watanabe, Tsuyoshi Toyono, and Keisuke Ishibashi, “Proactive Failure Detection Learning Generation Patterns of Large-scale Network Logs,” 11th International Conference on Network and Service Management (CNSM), November 2015, Barcelona, Spain.

  5. Noriaki Kamiyama, Yousuke Takahashi, Keisuke Ishibashi, Kohei Shiomoto, Tatsuya Otoshi, Yuichi Ohsita, and Masayuki Murata, "Optimizing Cache Location and Route on CDN Using Model Predictive Control," to be presented at 27th International Teletraffic Congress, Sept. 2015.

  6. Tatsuya Otoshi, Yuichi Ohsita, Masayuki Murata, Yousuke Takahashi, Keisuke Ishibashi, Kohei Shiomoto, and Tomoaki Hashimoto, "Traffic Engineering Based on Stochastic Model Predictive Control for Uncertain Traffic Change," in Proceedings of IFIP/IEEE ManFI, May 2015.

  7. T. Mori, T. Inoue, A. Shimoda, K. Sato, K. Ishibashi, and S. Goto, “SFMap: Inferring Services over Encrypted Web Flows using Dynamical Domain Name Graphs'', Proc. Traffic Monitoring and Analysis workshop (TMA 2015), Apr. 2015.

  8. Yousuke Takahashi, Keisuke Ishibashi, Noriaki Kamiyama, Kohei Shiomoto, Tatsuya Otoshi, Yuichi Ohsita, and Masayuki Murata, "Macroflow-based traffic engineering in SDN-controlled network," in Proceedings of 11th International Conference on IP+Optical Network, Apr. 2015.

  9. Noriaki Kamiyama, Yousuke Takahashi, Keisuke Ishibashi, Kohei Shiomoto, Tatsuya Otoshi , Yuichi Ohsita, and Masayuki Murata, "Flow Aggregation for Traffic Engineering," in Proceedings of IEEE GLOBECOM 2014, Austin December 2014, pp. 1936-1941.

  10. Tatsuaki Kimura, Keisuke Ishibashi, Tatsuya Mori, Hiroshi Sawada,Tsuyoshi Toyono, Ken Nishimatsu, Akira Watanabe, Akihiro Shimoda, and Kohei Shiomoto, "Spatio-temporal Factorization of Log Data for Understanding Network Events," IEEE INFOCOM 2014, pp. 610-618, 2014.

  11. Tatsuya Otoshi, Yuichi Ohsita, Masayuki Murata, Yousuke Takahashi, Keisuke Ishibashi, and Kohei Shiomoto, ``Traffic Prediction for Dynamic Traffic Engineering Considering Traffic Variation,'' IEEE Globecom, Dec. 2013.

  12. Katsuya Suto, Hiroki Nishiyama, Hideaki Yoshino, Keisuke Ishibashi, and Nei Kato, ``A Method to Construct an Attack and Fault Tolerant Scalable Distributed Network,'' 4th International Conference on Communications, Mobility, and Computing (CMC 2012), Guilin, China, May 2012.

  13. Keisuke Ishibashi and Kazumichi Sato, ``Classifying DNS Heavy User Traffic by using Hierarchical Aggregate Entropy,'' World Telecommunications Congress (WTC) 2012, Miyazaki, Japan, March 2012. [IEEE Xplore]

  14. Yousuke Takahashi and Keisuke Ishibashi, ``Incentive mechanism for prompting ISPs to implement outbound filtering of unwanted traffic,'' International Conference on Network Games, Control and Optimization (NetGCooP 2011), Paris, France, October, 2011 [pdf].

  15. Tatsuya Mori, Yousuke Takahashi, Kazumichi Sato, and Keisuke Ishibashi ``How is E-mail Sender Authentication Used and Misused?,'' Proc. 8th Conference on Email and Anti-spam (CEAS 2011), Perth, Australia, September 2011.

  16. Keisuke Ishibashi, Tsuyoshi Kondoh, Shigeaki Harada, Tatsuya Mori, Ryoichi Kawahara, and Shoichiro Asano, ``Detecting Anomalous Traffic using Communication Graphs,'' World Telecommunications Congress (WTC) 2010, Vienna, Austria, September 2010. [IEEE Xplore]

  17. Meidai Saito, and Keisuke Ishibashi, ``Validation of Packet Origin Using External Route Information,'' 8th Asia-Pacific Symposium on Information and Telecommunication Technologies (APSITT 2010), Kuching, Sarawak, Malaysia, June 2010. [IEEE Xplore]

  18. Kazumichi Sato, Keisuke Ishibashi, Tsuyoshi Toyono, and Nobuhisa Miyake, ``Extending Black Domain Name List by Using Co-occurrence Relation Between DNS Queries,'' 3rd USENIX Workshop on Large-Scale Exploits and Emergent Threats (LEET '10), San Jose, CA, USA, April 2010. [pdf]

  19. Atsushi Kobayashi and Keisuke Ishibashi, ``VoIP Measurement Architecture by using Data Mediation,'' 9th IEEE International Workshop on IP Operations and Management, Venice Italy, October 2009.

  20. Ryoichi Kawahara, Keisuke Ishibashi, Tatsuya Mori, Noriaki Kamiyama, Shigeaki Harada, and Shoichiro Asano, `` Detection accuracy of network anomalies using sampled flow statistics,'' IEEE Globecom 2007, Washington, DC, USA, Nov. 2007.

  21. Keisuke Ishibashi, Ryoichi Kawahara, Tatsuya Mori, Tsuyoshi Kondoh, Shoichiro Asano, ``Effect of sampling rate and monitoring granuality on anomaly detectability,'' 10th IEEE Global Internet Symposium 2007 (in conjunction with IEEE Infocom 2007) Anchorage, USA, May 2007 [pdf] .

  22. Keisuke Ishibashi, Tatsuya Mori, Ryoichi Kawahara, Katsuyasu Toyama, Shunichi Osawa, Shoichiro Asano, ``2-D Bitmap for Summarizing Inter-Host Communication Pattern,'' IEEE SAINT 2007 Workshop on Internet Measurement Technology and its Applications to Building Next Generation Internet, Hiroshima, Japan, January 2007.

  23. Ryoichi Kawahara, Tatsuya Mori, Keisuke Ishibashi, Noriaki Kamiyama and Takeo Abe, ``Estimating flow rate from sampled packet streams for detection of performance degradation at TCP flow level,'' IEEE Globecom 2006, San Francisco, USA, December 2006.

  24. Atsushi Kobayashi, Daisuke Matsubara, Shingo Kimura, Motoyuki Saitou, Yutaka Hirokawa, Hitoaki Sakamoto, Keisuke Ishibashi, and Kimihiro Yamamoto, ``A Proposal of Large-scale Traffic monitoring system using Flow concentrators,'' Asia-Pacific Network Operations and Management (APNOMS 2006), Busan Korea, September 2006.

  25. Keisuke Ishibashi, Tatsuya Mori, Ryoichi Kawahara, Yutaka Hirokawa, Atsushi Kobayashi, Kimihiro Yamamoto, and Hitoaki Sakamoto, ``Estimating Top N Hosts in Cardinality Using Small Memory Resouces,'' 2nd IEEE International Workshop on Networking Meets Databases (NetDB'06), Atlanta, USA, April 2006.

  26. Masaki Aida, Keisuke Ishibashi, Hiroshi Miwa, Chisa Takano, Akira Miura, Chisa Takano, and Kaori Muranaka, ``Cluster Structures in Topology of Large-Scale Social Networks Revealed by Traffic Data,'' IEEE GLOBECOM 2005, St. Louis, USA, December 2005.

  27. Keisuke Ishibashi, Tsuyoshi Toyono, Katsuyasu Toyama, Masahiro Ishino, Haruhiko Ohshima, and Ichiro Mizukoshi, "Detecting Mass-Mailing Worm Infected Hosts by Mining DNS Traffic Data, " ACM SIGCOMM 2005 Workshop on Mining Network Data (MineNet2005), Philadelphia, USA, August 2005 [pdf].

  28. Ryoichi Kawahara, Keisuke Ishibashi, Tatsuya Mori, and Takeo Abe, ``A Method of Detecting Performance Degradation at TCP Flow Level from Sampled Packet Streams,'' IEEE HPSR 2005, Hong Kong, P. R. China, May 2005.

  29. Keisuke Ishibashi, Tsuyoshi Toyono, Hirotaka Matsuoka, and Katsuyasu Toyama, Masahiro Ishino, Chika Yoshimura, Takehiro Ozaki, Yuichi Sakamoto, and Ichiro Mizukoshi, "Measurement of DNS Traffic Caused by DDoS Attacks, " IEEE SAINT 2005 Workshop on Network Security Threats and Countermeasures, Trento, Itary, January 2005.

  30. Istvan Moldovan, Trang Dinh Dang, Jozsef Biro, Daisuke Satoh, Keisuke Ishibashi, ``Bottleneck links detection method based on passive monitoring,'' IASTED CIIT 2004, Virginia, USA, November 2004.

  31. Ryoichi Kawahara, Keisuke Ishibashi, Takuya Asaka, Takeo Abe, Shuichi Sumita, ``A Method of Bandwidth Dimensioning and Management Using Flow Statistics,'' IEEE 2004, pp.670-674, Dallas, USA, November 2004.

  32. Keisuke Ishibashi, Ryoichi Kawahara, Takuya Asaka, Masaki Aida, ``Detection of TCP Performance Degradation Using Link Utilization Statistics,'' IEEE GLOBECOM 2004, pp.845-850, Dallas, USA, November 2004.

  33. Keisuke Ishibashi, Ryoichi Kawahara, Takuya Asaka, Masaki Aida, ``Estimation and Prediction of TCP Performance Degradation Using Link Utilization Statistics,'' WTC/ISS 2004, Seoul, Korea, September 2004.

  34. Masaki Aida, Keisuke Ishibashi, Hiroshi Miwa, and Chisa Takano, ``New Approach for Analyzing Large-Scale Social Networks and Use-Dynamics by using Data of Communication Traffic,'' IEEE MWSCAS2004, Hiroshima, Japan, July 2004.

  35. Ryoichi Kawahara, Keisuke Ishibashi, Tatsuya Mori, Toshihisa Ozawa, Shuichi Sumita, and Takeo Abe, ``A method of bandwidth dimensioning and management for aggregated TCP flows with heterogeneous access links,'' Networks 2004, pp15--20, Vienna, Austria, June 2004.

  36. Masaki Aida, Keisuke Ishibashi, Hiroshi Miwa, and Chisa Takano, ``Structures of Human Relations and User-Dynamics Revealed by Traffic Data,'' ICOIN 2004, Busan, Korea, Feburary 2004.

  37. Ryoichi Kawahara, Keisuke Ishibashi, Takuya Asaka, and Katsunori Ori, ``A Method of IP Traffic Management Using TCP Flow Statistics,'' IEEE GLOBECOM 2003, pp.4059--4063, San Francisco, USA, December 2003.

  38. Keisuke Ishibashi, Masaki Aida and Shin-ichi Kuribayashi, ``Estimating Packet Loss-Rate by Using Delay Information and Combinated with Change-of-Meaure Framework,'' IEEE GLOBECOM 2003, pp.3878--3882 San Francisco, USA, December 2003.

  39. Pal Varga, Gergely Kun, Peter Fodor, Jozsef Biro, Daisuke Satoh, and Keisuke Ishibashi, ``An Advanced Technique on Bottleneck Detection,'' EUNICE 2003, Budapest, Hungary, September 2003.

  40. Dung D. Luong, Attila Vidacs, Jozef Biro, Daisuke Satoh, and Keisuke Ishibashi, ``Unicast Probing to Estimate Shared Loss Rate,'' E2EMON Workshop (conjunction with IFIP/IEEE MMNS2003), Belfast, Northern Ireland, September 2003. (Also appeared in LNCS 2839 Management ofMultimedia Networks and Services, pp.503--515.)

  41. Keisuke Ishibashi, Mika Ishizuka, Masaki Aida and Hiroshi Ishii, ``Capacity Dimensioning of VPN Access Links for Elastic Traffic,'' IEEE ICC 2003, pp.1547--1551, Anchorage, USA, May 2003.

  42. Masaki Aida, Naoto Miyoshi and Keisuke Ishibashi, ``A Scalable and Lightweight QoS Monitoring Technique Combing Passive and Active Approaches: on Mathematical Formulation of CoMPACT Monitor,'' IEEE INFOCOM 2003, pp.125--133, San Francisco, USA, March 2003.

  43. Keisuke Ishibashi, Toshiyuki Kanazawa and Masaki Aida, ``Active/Passive Combination-type Performance Measurement Method Using Change-of-measure Framework,'' IEEE GLOBECOM 2002, pp.2538--2542, Taipei, Taiwan, Nobember 2002.

  44. Csaba Simon, Attila Vidacs, Istvan Moldovan, Attila Torok, Keisuke Ishibashi,Arata Koike, and Hiroyuki Ichikawa, ``End-to-end Relative Differentiated Services for IP networks,'' IEEE ISCC 2002, pp.783--788, Taormina, Italy, July 2002.

  45. Keisuke Ishibashi, Masaki Aida and Makoto Imase, ``Characteristics of Temporal and Spatial Locality of Internet Access Patterns,'' IFIP Networking 2002 Workshop on Web Engineering, pp.15--28, Pisa, Italy, May 2002.

  46. Masaki Aida, Keisuke Ishibashi and Toshiyuki Kanazawa, ``CoMPACT-Monitor: Change-of-measure based passive/active monitoring -weighted active sampling scheme to infer QoS-,'' IEEE SAINT 2002 Workshop on Measurement Technology for the Internet Applications, pp.119--125, Nara, Japan, February 2002.

  47. Arata Koike, Shinichi Nakagawa, Keisuke Ishibashi, and Hiroshi Ishii, ``Transport Middleware for Measuring IP Flow,'' IEEE Networks 2000, Toronto,Canada, September 2000.

  48. Takuya Takeda, Arata Koike, Keisuke Ishibashi and Kazuhiro Sato, ``A new fairness control method for switched networks based on Ethernet,'' APSITT'99, pp.338--342, Ulaanbaatar, Mongolia, August 1999.

  49. Keisuke Ishibashi and Arata Koike, ``Proposal and Evaluation of a Native ATM-ABR transport protocol,'' APSITT'99, pp.192--197, Ulaanbaatar, Mongolia, August 1999.

  50. Keisuke Ishibashi, Takumi Kimura, and Toshihisa Ozawa, ``A Measurement-based Performance Evaluation Method for IP Networks and Its Implementation,'' 11th ITC Specialist Seminar, pp.272--277, Yokohama, Japan, October 1998.

Technical Report/Talk

  1. Kazumichi Sato, Keisuke Ishibashi, and Haruhiko Nishida, Kota Hashimoto, ``DNS Query Sent by Heavy Users and DNS Prefetch Effect,'' 51th North American Network Operators Group Meeting (NANOG51), Miami, USA, Feburary 2011.

  2. Kazumichi Sato, Keisuke Ishibashi, Tsuyoshi Toyono, and Nobuhisa Miyake ``Extending Black Domain Name List by Using Co-occurrence Relation between DNS queries,'' 2010 OARC Workshop, Denver, USA, October 2010.

  3. Keisuke ISHIBASHI, ``Characteizing DNS client behavior using hierarchical aggregated entropy,'' 2nd Global Annual Symposium on DNS Security, Stability and Resiliency (DNS-SSR), Kyoto, Japan, Feburary 2010.

  4. Keisuke Ishibashi, Tsuyoshi Kondoh, Shigeki Harada, Tatsuya Mori, Ryoichi Kawahara and Shoichiro Asano, ``Detecting Anomalies in Inter-host Communication Graphs,'' 5th CERT Workshop on Flow Analysis (FloCon 2009), Scottsdale, AZ , USA, January 2009.

  5. Keisuke Ishibashi, Tsuyoshi Toyono, and Makoto Iwamura, ``Improving Accuracy of Black Domain List by Using DNS Query Graph,'' WIND’08, December 2008.

  6. Keisuke Ishibashi, Tsuyoshi Toyono, and Makoto Iwamura, ``Detecting Botnet by Matching DNS and Honeypot Data,'' 2008 OARC Workshop, Ottawa, Canada, September 2008.

  7. Tsuyoshi Toyono, and Keisuke Ishibashi, ``Monitoring Cache Poisoning Attacks,'' 2008 OARC Workshop, Ottawa, Canada, September 2008.

  8. Atsushi Kobayashi, Tsuyoshi Kondoh, Keisuke Ishibashi, ``Design for a Large-Scale Collection System using Flow Mediators,'' 4th CERT Workshop on Flow Analysis (FloCon 2008), Savannah, USA,January 2008.

  9. Tsuyoshi Kondoh, Keisuke Ishibashi, ``Identifying the Anomalous Traffic Using Delta Traffic,'' 4th CERT Workshop on Flow Analysis (FloCon 2008), Savannah, USA,January 2008.

  10. Keisuke Ishibashi, Tatsuya Mori, Ryoichi Kawahara, Yutaka Hirokawa, Atsushi Kobayashi, Kimihiro Yamamoto, Hitoaki Sakamoto, and Shoichiro Asano, ``Finding flow-level heavy hitters in backbone traffic and its application to anomaly detection,'' Nagasaki Symposium 2006 GENnet2/AcessNova Forum,, Nagasaki Japan, June 2006.

  11. Tatsuya Mori, Ryoichi Kawahara, Noriaki Kamiyama, Keisuke Ishibashi, ``A robust approach of detecting worm-infected hosts through the analysis of communication pattern of each host,'' Nagasaki Symposium 2006 GENnet2/AcessNova Forum, Nagasaki Japan, June 2006.

  12. Katsuyasu Toyama, Keisuke Ishibashi, Tsuyoshi Toyono, Masahiro Ishino, Chika Nishimura, Kazunori Fujiwara, ``DNS anomalies and DNS cache servers,'' 32th North American Network Operators Group Meeting (NANOG32), Octber 2004.

Standard

  1. Atsushi Kobayashi, Benoit Claise, Gerhard Muenz, and Keisuke Ishibashi, ``IP Flow Information Export (IPFIX) Mediation: Framework,'' RFC 6183, April 2011.

  2. Kazunori Fujiwara, Keisuke Ishibashi, Katsuyasu Toyama, ``DNS authoritative server misconfiguration and a countermeasure in resolver,'' Internet Draft, Internet Engineering Task Force, draft-fujiwara-dnsop-bad-dns-auth-00.txt, Octber 2004.

Review, Misc.

  1. Keisuke Ishibashi, Yutaka Yamamoto, and Satoru Iai, ``Trends of Multimedia Applications from the Viewpoint of Quality of Service and Traffic Aspects,'' NTT Technical Review, vol.10, no.2, pp.44--49, 1997.