@article{towardshierarchicalpolicylearningfor,
  title = {Towards Hierarchical Policy Learning for Conversational Recommendation with Hypergraph-based Reinforcement Learning},
  author = {Sen Zhao and Wei Wei and Yifan Liu and Ziyang Wang and Wendi Li and Xian-Ling Mao and Shuai Zhu and Minghui Yang and Zujie Wen},
  year = {2023},
  eprint = {2305.02575},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2305.02575v2},
}