@inproceedings{efficientonlinealgorithmsforfastrate,
  title = {Efficient online algorithms for fast-rate regret bounds under sparsity},
  author = {Pierre Gaillard and Olivier Wintenberger},
  year = {2018},
  booktitle = {NeurIPS 2018 12},
  eprint = {1805.09174},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1805.09174v1},
}