| 2016 | IJCNN | A neural network model for detecting DDoS attacks using darknet traffic features. | Siti Hajar Aminah Ali, Seiichi Ozawa, Tao Ban, Junji Nakazato, Jumpei Shimamura |
| 2015 | ICONIP | Adaptive DDoS-Event Detection from Big Darknet Traffic Data. | Nobuaki Furutani, Jun Kitazono, Seiichi Ozawa, Tao Ban, Junji Nakazato, Jumpei Shimamura |
| 2015 | IJCNN | An autonomous online malicious spam email detection system using extended RBF network. | Siti Hajar Aminah Ali, Seiichi Ozawa, Junji Nakazato, Tao Ban, Jumpei Shimamura |
| 2014 | ICONIP | Detecting Malicious Spam Mails: An Online Machine Learning Approach. | Yuli Dai, Shunsuke Tada, Tao Ban, Junji Nakazato, Jumpei Shimamura, Seiichi Ozawa |
| 2007 | ACISP | Threshold Anonymous Group Identification and Zero-Knowledge Proof. | Akihiro Yamamura, Takashi Kurokawa, Junji Nakazato |
| 2005 | AINA | Privacy Preserving Web-Based Questionnaire. | Junji Nakazato, Kenji Fujimoto, Hiroaki Kikuchi |
| 2004 | SEC | ModInt: Compact Modular Arithmatic Class Library Available on Cellular Phone and its Application to Secure Electronic Voting System. | Hiroaki Kikuchi, Junji Nakazato |