@inproceedings{theepochgreedyalgorithmformultiarmed,
  title = {The Epoch-Greedy Algorithm for Multi-armed Bandits with Side Information},
  author = {John Langford and Tong Zhang},
  year = {2007},
  booktitle = {NeurIPS 2007 12},
  url = {http://papers.nips.cc/paper/3178-the-epoch-greedy-algorithm-for-multi-armed-bandits-with-side-information},
}