@INPROCEEDINGS{18cxl-neurips,
  author = {Lixing Chen and Jie Xu and Zhuo Lu},
  title = {Contextual Combinatorial Multi-armed Bandits with Volatile Arms and Submodular Reward},
  booktitle = {Proc. of Annual Conference on Neural Information Processing Systems (NeurIPS)},
  month = {December}
  year = {2018}
}