@article{keywordextractionforimproveddocument,
  title = {Keyword Extraction for Improved Document Retrieval in Conversational Search},
  author = {Oleg Borisov and Mohammad Aliannejadi and Fabio Crestani},
  year = {2021},
  eprint = {2109.05979},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2109.05979v2},
}