@article{onlineportfolioselectionasurvey,
  title = {Online Portfolio Selection: A Survey},
  author = {Bin Li and Steven C. H. Hoi},
  year = {2012},
  eprint = {1212.2129},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1212.2129v2},
}