Audio Hotspot Attack: An Attack on Voice Assistance Systems Using Directional Sound Beams. - Ryo Iijima; Shota Minami; Yunao Zhou; Tatsuya Takehisa; Takeshi Takahashi 001; Yasuhiro Oikawa; Tatsuya Mori (CCS, 2018)

Poster: A First Look at the Privacy Risks of Voice Assistant Apps. - Atsuko Natatsuka; Ryo Iijima; Takuya Watanabe 001; Mitsuaki Akiyama; Tetsuya Sakai; Tatsuya Mori (CCS, 2019)

Word Cloud for Meeting: A Visualization System for DHH People in Online Meetings. - Ryo Iijima; Akihisa Shitara; Sayan Sarcar; Yoichi Ochiai (ASSETS, 2021)

Personalized Navigation that Links Speaker's Ambiguous Descriptions to Indoor Objects for Low Vision People. - Jun-Li Lu; Hiroyuki Osone; Akihisa Shitara; Ryo Iijima; Bektur Ryskeldiev; Sayan Sarcar; Yoichi Ochiai (HCI (8), 2021)

EmojiCam: Emoji-Assisted Video Communication System Leveraging Facial Expressions. - Kosaku Namikawa; Ippei Suzuki; Ryo Iijima; Sayan Sarcar; Yoichi Ochiai (HCI (3), 2021)

Smartphone Drum: Gesture-based Digital Musical Instruments Application for Deaf and Hard of Hearing People. - Ryo Iijima; Akihisa Shitara; Sayan Sarcar; Yoichi Ochiai (SUI, 2021)

Audio Hotspot Attack: An Attack on Voice Assistance Systems Using Directional Sound Beams and its Feasibility. - Ryo Iijima; Shota Minami; Yunao Zhou; Tatsuya Takehisa; Takeshi Takahashi 001; Yasuhiro Oikawa; Tatsuya Mori (IEEE Trans. Emerg. Top. Comput., 2021)

Designing Gestures for Digital Musical Instruments: Gesture Elicitation Study with Deaf and Hard of Hearing People. - Ryo Iijima; Akihisa Shitara; Yoichi Ochiai (ASSETS, 2022)

Cyber-physical firewall: monitoring and controlling the threats caused by malicious analog signals. - Ryo Iijima; Tatsuya Takehisa; Tatsuya Mori (CF, 2022)

See-Through Captions in a Museum Guided Tour: Exploring Museum Guided Tour for Deaf and Hard-of-Hearing People with Real-Time Captioning on Transparent Display. - Ippei Suzuki; Kenta Yamamoto; Akihisa Shitara; Ryosuke Hyakuta; Ryo Iijima; Yoichi Ochiai (ICCHP-AAATE (1), 2022)

Understanding the Behavior Transparency of Voice Assistant Applications Using the ChatterBox Framework. - Atsuko Natatsuka; Ryo Iijima; Takuya Watanabe 001; Mitsuaki Akiyama; Tetsuya Sakai; Tatsuya Mori (RAID, 2022)

PinchKey: A Natural and User-Friendly Approach to VR User Authentication. - Mei Suzuki; Ryo Iijima; Kazuki Nomoto; Tetsushi Ohki; Tatsuya Mori (EuroUSEC, 2023)

A Preliminary Study on Eye Contact Framework Toward Improving Gaze Awareness in Video Conferences. - Kazuya Izumi; Shieru Suzuki; Ryogo Niwa; Atsushi Shinoda; Ryo Iijima; Ryosuke Hyakuta; Yoichi Ochiai (HCI (1), 2023)

SHITARA: Sending Haptic Induced Touchable Alarm by Ring-shaped Air vortex. - Ryosei Kojima; Akihisa Shitara; Tatsuki Fushimi; Ryogo Niwa; Atsushi Shinoda; Ryo Iijima; Kengo Tanaka; Sayan Sarcar; Yoichi Ochiai (CoRR, 2023)

Automating the Detection of Fraudulent Activities in Online Banking Service. - Ichiro Asomura; Ryo Iijima; Tatsuya Mori (J. Inf. Process., 2023)

The Catcher in the Eye: Recognizing Users by their Blinks. - Ryo Iijima; Tatsuya Takehisa; Tetsushi Ohki; Tatsuya Mori (AsiaCCS, 2024)

Establishing a Community-Driven Digital Library for the Visually Impaired. - Tomoya Matsumura; Ryo Iijima; Takahiro Miura; Masaki Matsuo; Yoichi Ochiai (ASSETS, 2024)

DeGhost: Unmasking Phantom Intrusions in Autonomous Recognition Systems. - Hotaka Oyama; Ryo Iijima; Tatsuya Mori (EuroS&P, 2024)

Automated Exploration of Optimal Neural Network Structures for Deepfake Detection. - Yuto Toshikawa; Ryo Iijima; Tatsuya Mori (FPS (2), 2024)

FairTalk: Facilitating Balanced Participation in Video Conferencing by Implicit Visualization of Predicted Turn-Grabbing Intention. - Ryo Iijima; Shigeo Yoshida; Atsushi Hashimoto 001; Jiaxin Ma (CoRR, 2025)