@article{instancedependentcomplexityofcontextual, title = {Instance-Dependent Complexity of Contextual Bandits and Reinforcement Learning: A Disagreement-Based Perspective}, author = {Dylan J. Foster and Alexander Rakhlin and David Simchi-Levi and Yunzong Xu}, year = {2020}, eprint = {2010.03104}, archivePrefix = {arXiv}, url = {https://arxiv.org/abs/2010.03104v1}, }