@article{learningworldgraphstoaccelerate,
  title = {Learning World Graphs to Accelerate Hierarchical Reinforcement Learning},
  author = {Wenling Shang and Alex Trott and Stephan Zheng and Caiming Xiong and Richard Socher},
  year = {2019},
  eprint = {1907.00664},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/1907.00664v1},
}