A Liveness Detection Method for Palmprint Authentication. - Ayaka Sugimoto; Yuya Shiomi; Akira Baba; Norihiro Okui; Tetsushi Ohki; Yutaka Miyake; Masakatsu Nishigaki (IHSI, 2020)

Machine Learning based Malware Traffic Detection on IoT Devices using Summarized Packet Data. - Masataka Nakahara; Norihiro Okui; Yasuaki Kobayashi; Yutaka Miyake (IoTBDS, 2020)

Malware Detection for IoT Devices using Automatically Generated White List and Isolation Forest. - Masataka Nakahara; Norihiro Okui; Yasuaki Kobayashi; Yutaka Miyake (IoTBDS, 2021)

Inferring Connected IoT Devices from IPFIX Records in Residential ISP Networks. - Arman Pashamokhtari; Norihiro Okui; Yutaka Miyake; Masataka Nakahara; Hassan Habibi Gharakheili (LCN, 2021)

Identification of an IoT Device Model in the Home Domain Using IPFIX Records. - Norihiro Okui; Masataka Nakahara; Yutaka Miyake; Ayumu Kubota (COMPSAC, 2022)

Anomaly Traffic Detection with Federated Learning toward Network-based Malware Detection in IoT. - Takayuki Nishio; Masataka Nakahara; Norihiro Okui; Ayumu Kubota; Yasuaki Kobayashi; Keizo Sugiyama; Ryoichi Shinkuma (GLOBECOM, 2022)

A Graph Construction Method for Anomalous Traffic Detection with Graph Neural Networks Using Sets of Flow Data. - Norihiro Okui; Yusuke Akimoto; Ayumu Kubota; Takuya Yoshida (COMPSAC, 2023)

Quantifying and Managing Impacts of Concept Drifts on IoT Traffic Inference in Residential ISP Networks. - Arman Pashamokhtari; Norihiro Okui; Masataka Nakahara; Ayumu Kubota; Gustavo Batista; Hassan Habibi Gharakheili (CoRR, 2023)

Combining Stochastic and Deterministic Modeling of IPFIX Records to Infer Connected IoT Devices in Residential ISP Networks. - Arman Pashamokhtari; Norihiro Okui; Yutaka Miyake; Masataka Nakahara; Hassan Habibi Gharakheili (IEEE Internet Things J., 2023)

Malware detection for IoT devices using hybrid system of whitelist and machine learning based on lightweight flow data. - Masataka Nakahara; Norihiro Okui; Yasuaki Kobayashi; Yutaka Miyake; Ayumu Kubota (Enterp. Inf. Syst., 2023)

Dynamic Inference From IoT Traffic Flows Under Concept Drifts in Residential ISP Networks. - Arman Pashamokhtari; Norihiro Okui; Masataka Nakahara; Ayumu Kubota; Gustavo Batista; Hassan Habibi Gharakheili (IEEE Internet Things J., 2023)

Poster: Understanding and Managing Changes in IoT Device Behaviors for Reliable Network Traffic Inference. - Shayan Azizi; Norihiro Okui; Masataka Nakahara; Ayumu Kubota; Gustavo Batista; Hassan Habibi Gharakheili (SIGCOMM (Posters and Demos), 2024)

Unsupervised Contextual Anomalous Communication Detection Using VQ Tokenization with Flow Data. - Norihiro Okui; Shotaro Fukushima; Ayumu Kubota; Takuya Yoshida (WISA, 2024)

WIP: Cyber Security Measurement Taking Physical Circumstances. - Masataka Nakahara; Keizo Sugiyama; Norihiro Okui; Yasuaki Kobayashi; Ayumu Kubota; Shinsaku Kiyomoto (CCNC, 2025)

A Study of Anomalous Communication Detection for IoT Devices Using Flow Logs in a Cloud Environment. - Yutaro Iizawa; Norihiro Okui; Yusuke Akimoto; Shotaro Fukushima; Ayumu Kubota; Takuya Yoshida (IoTBDS, 2025)

Survey and Experimentation to Compare IoT Device Model Identification Methods. - Norihiro Okui; Masataka Nakahara; Ayumu Kubota (WoWMoM, 2025)

Data Acquisition Framework for Micromobility Vehicles Toward Driving Risk Prediction Against Cyberphysical Security Attack. - Shunsuke Sato; Ryoichi Shinkuma; Kensei Hirai; Masataka Nakahara; Norihiro Okui; Ayumu Kubota; Yasuaki Kobayashi; Keizo Sugiyama; Takayuki Nishio (IEEE Secur. Priv., 2025)

Self-Adaptive Traffic Anomaly Detection System for IoT Smart Home Environments. - Naoto Watanabe; Taku Yamazaki; Takumi Miyoshi; Ryo Yamamoto; Masataka Nakahara; Norihiro Okui; Ayumu Kubota (IEICE Trans. Commun., 2025)