no code implementations • 22 Mar 2021 • Raj Vardhan, Ninghao Liu, Phakpoom Chinprutthiwong, Weijie Fu, Zhenyu Hu, Xia Ben Hu, Guofei Gu
Several defense methods have been proposed against adversarial attacks to detect adversarial examples at test time or to make machine learning models more robust.
no code implementations • 12 Jan 2021 • Yangyong Zhang, Maliheh Shirvanian, Sunpreet S. Arora, Jianwei Huang, Guofei Gu
We present AEOLUS, a security overlay that proactively embeds a dynamic acoustic nonce at the time of user interaction, and detects the presence of the embedded nonce in the recorded speech to ensure freshness.