@article{moreadaptivealgorithmsfortrackingthe,
  title = {Adaptive and Efficient Algorithms for Tracking the Best Expert},
  author = {Shiyin Lu and Lijun Zhang},
  year = {2019},
  eprint = {1909.02187},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/1909.02187v2},
}