@inproceedings{whyapproximatematrixsquareroot,
  title = {Why Approximate Matrix Square Root Outperforms Accurate SVD in Global Covariance Pooling?},
  author = {Yue Song and Nicu Sebe and Wei Wang},
  year = {2021},
  booktitle = {ICCV 2021 10},
  eprint = {2105.02498},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2105.02498v2},
}