@inproceedings{ye2019unsupervised,
  title={Unsupervised Embedding Learning via Invariant and Spreading Instance Feature},
  author={Ye, Mang and Zhang, Xu and Yuen, Pong C and Chang, Shih-Fu},
  booktitle={Proceedings of the IEEE Conference on Computer Vision and Pattern Recognition},
  pages={6210--6219},
  year={2019}
}