@article{tightconcentrationsandconfidencesequence,
  title = {Tight Concentrations and Confidence Sequences from the Regret of Universal Portfolio},
  author = {Francesco Orabona and Kwang-Sung Jun},
  year = {2021},
  eprint = {2110.14099},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2110.14099v3},
}