Kaiyuan Xu

Deep neural network based i-vector mapping for speaker verification using short utterances

2018 · arXiv (Cornell University)

Text-independent speaker recognition using short utterances is a highly challenging task due to the large variation and content mismatch between short utterances. I-vector based systems have become the standard in speaker verification applications, but they …

Attention, Please! Adversarial Defense via Activation Rectification and Preservation

2022 · ACM Transactions on Multimedia Computing Communications and Applications

This study provides a new understanding of the adversarial attack problem by examining the correlation between adversarial attack and visual attention change. In particular, we observed that: (1) images with incomplete attention regions are more …