Kazuya Okada

Classifying DNS Servers Based on Response Message Matrix Using Machine Learning

Keiichi Shima, Ryo Nakamura, Kazuya Okada, Tomohiro Ishihara, Daisuke Miyamoto, Yuji Sekiya

2019 International Conference on Computational Science and Computational Intelligence (CSCI), Dec, 2019 Peer-reviewed

Distributed Hayabusa: Scalable Syslog Search Engine Optimized for Time-Dimensional Search

Hiroshi Abe, Keiichi Shima, Yuji Sekiya, Tomohiro Ishihara, Kazuya Okada, Ryo Nakamura

In AINTEC'19: Asian Internet Engineering Conference, Phuket, Thailand, Aug, 2019 Peer-reviewed

Alchemy: Stochastic Feature Regeneration for Malicious Network Traffic Classification.

Bo Hu, Atsutoshi Kumagai, Kazunori Kamiya, Kenji Takahashi, Daniel Dalek, Ola Söderström, Kazuya Okada, Yuji Sekiya, Akihiro Nakao

43rd IEEE Annual Computer Software and Applications Conference, COMPSAC 2019, Milwaukee, WI, USA, July 15-19, 2019, Volume 1, 346-351, 2019 Peer-reviewed

時間軸検索に最適化したスケールアウト可能な高速ログ検索エンジンの実現と評価

阿部博, 島慶一, 宮本大輔, 関谷勇司, 石原知洋, 岡田和也, 中村遼, 松浦知史, 篠田陽一

情報処理学会論文誌, 60(3) 728-737, 2019 Peer-reviewed

GoEdge: A Scalable and Stateless Local Breakout Method.

Kazuya Okada, Shigeru Kashihara, Nao Kawanishi, Nobuo Suzuki, Keizo Sugiyama, Youki Kadobayashi

Proceedings of the 2018 Workshop on Theory and Practice for Integrated Cloud, Fog and Edge Computing Paradigms, TOPIC@PODC 2018, Egham, United Kingdom, July 27, 2018, 29-34, 2018 Peer-reviewed

Classification of URL bitstreams using bag of bytes.

Keiichi Shima, Daisuke Miyamoto, Hiroshi Abe, Tomohiro Ishihara, Kazuya Okada, Yuji Sekiya, Hirochika Asai, Yusuke Doi

21st Conference on Innovation in Clouds, Internet and Networks and Workshops, ICIN 2018, Paris, France, February 19-22, 2018, 1-5, 2018 Peer-reviewed

Malicious Host Detection by Imaging SYN Packets and A Neural Network.

Ryo Nakamura, Yuji Sekiya, Daisuke Miyamoto, Kazuya Okada, Tomohiro Ishihara

2018 International Symposium on Networks, Computers and Communications, ISNCC 2018, Rome, Italy, June 19-21, 2018, 1-4, 2018 Peer-reviewed

Hayabusa: Simple and fast full-Text search engine for massive system log data

Hiroshi Abe, Keiichi Shima, Yuji Sekiya, Daisuke Miyamoto, Tomohiro Ishihara, Kazuya Okada

ACM International Conference Proceeding Series, 128772, Jun 14, 2017 Peer-reviewed

MATATABI: Multi-layer Threat Analysis Platform with Hadoop

Hajime Tazaki, Kazuya Okada, Yuji Sekiya, Youki Kadobayashi

Proceedings - 3rd International Workshop on Building Analysis Datasets and Gathering Experience Returns for Security, BADGERS 2014, 75-82, Apr 1, 2016 Peer-reviewed

SDN と NFVによる新たなネットワークサービス構造の提案

関谷勇司, 中村遼, 岡田和也, 堀場勝広

電子情報通信学会, 98(4) 333-344, Apr, 2015 Invited

FlowFall: A Service Chaining Architecture with Commodity Technologies

Ryo Nakamura, Kazuya Okada, Shuichi Saito, Hiroyuki Tanahashi, Yuji Sekiya

2015 IEEE 23RD INTERNATIONAL CONFERENCE ON NETWORK PROTOCOLS (ICNP), 425-431, 2015 Peer-reviewed

Web Server Protection against Application Layer DDoS Attacks using Machine Learning and Traffic Authentication

Jema David Ndibwile, A. Govardhan, Kazuya Okada, Youki Kadobayashi

IEEE 39TH ANNUAL COMPUTER SOFTWARE AND APPLICATIONS CONFERENCE WORKSHOPS (COMPSAC 2015), VOL 3, 261-267, 2015 Peer-reviewed

Oblivious DDoS mitigation with locator/ID separation protocol

Kazuya Okada, Hiroaki Hazeyama, Youki Kadobayashi

ACM International Conference Proceeding Series, 2014-(May) 8:1-8:6, Jun 18, 2014 Peer-reviewed

A trusted knowledge management system for multi-layer threat analysis

Thanasis Petsas, Kazuya Okada, Hajime Tazaki, Gregory Blanc, Paweł Pawliński

Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), 8564 214-215, 2014 Peer-reviewed

MPSDataStore: A sensor data repository system for mobile participatory sensing

Junya Niwa, Kazuya Okada, Takeshi Okuda, Suguru Yamaguchi

MCC 2013 - Proceedings of the 2nd, 2013 ACM SIGCOMM Workshop on Mobile Cloud Computing, 3-8, 2013 Peer-reviewed

Design of Geographically Aggregatable Address and Routing toward Location Based Multicast

Kazuya Okada, Takeshi Okuda, Suguru Yamaguchi

2013 IEEE 27TH INTERNATIONAL CONFERENCE ON ADVANCED INFORMATION NETWORKING AND APPLICATIONS WORKSHOPS (WAINA), 1307-1312, 2013 Peer-reviewed

A Sensor Data Storage System Using Mobile Devices and Cloud Computing

Junya Niwa, Kazuya Okada, Takeshi Okuda, Youki Kadobayashi, Suguru Yamaguchi

2012(10) 1-7, Jul 7, 2012

Adaptive Server Load Balancing on Distributed Cloud

Katsuhiro Horiba, Kazuya Okada, Yoshihiro Okamoto, Ryo Nakamura

Asian Internet Engineering Conference (AINTEC) Poster session, Nov, 2011 Peer-reviewed