@article{neuraldocumentexpansionwithuserfeedback,
  title = {Neural Document Expansion with User Feedback},
  author = {Yue Yin and Chenyan Xiong and Cheng Luo and Zhiyuan Liu},
  year = {2019},
  eprint = {1908.02938},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/1908.02938v1},
}