Hanqing Guo, Guangjing Wang, Bocheng Chen, Yuanda Wang, Xiao Zhang, Xun Chen, Qiben Yan, Li Xiao
MobiCom 2024 / pdf / code
WavePurifier is an audio purification framework to defend against audio adversarial attacks.
Keywords: AI security, speech recognition, diffusion model, mobile security
Guangjing Wang, Hanqing Guo, Yuanda Wang, Bocheng Chen, Ce Zhou, Qiben Yan
CNS 2024 / pdf / code
Hippo achieves fine-grained control over sensitive information disclosure by dissociating private metadata and multi-grained activity information from the raw sensing data.
Keywords: diffusion model, privacy-preserving data sharing, mobile sensing
Guangjing Wang, Nikolay Ivanov, Bocheng Chen, Qi Wang, ThanhVu Nguyen, Qiben Yan
SIGMOD 2023 / pdf / code
Glint is the first graph learning-based system for interactive threat detection in smart homes.
Keywords: graph neural network, contrastive learning, smart home, security
Guangjing Wang, Qiben Yan, Shane Patrarungrong, Juexing Wang, Huacheng Zeng
INFOCOM 2023 / pdf / code / extended version
Facer is the first active acoustic facial expression recognition system on smartphone devices.
Keywords: acoustic sensing, expression recognition, contrastive learning, domain adaptation
Guangjing Wang, Hanqing Guo, Anran Li, Xiaorui Liu, Qiben Yan
ICDE 2023 / pdf / code
FexIoT is a federated graph learning-based system for explainable IoT interaction vulnerability analysis.
Keywords: federated learning, security and privacy, explainability, IoT