@article{openproblemmodelselectionforcontextual,
  title = {Open Problem: Model Selection for Contextual Bandits},
  author = {Dylan J. Foster and Akshay Krishnamurthy and Haipeng Luo},
  year = {2020},
  eprint = {2006.10940},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2006.10940v1},
}