@inproceedings{wang2023facer,
  title={FacER: Contrastive Attention based Expression Recognition via Smartphone Earpiece Speaker},
  author={Wang, Guangjing and Yan, Qiben and Patrarungrong, Shane and Wang, Juexing and Zeng, Huacheng},
  booktitle={IEEE INFOCOM},
  year={2023}
}