@article{constructingahierarchicaluserinterest,
  title = {Constructing a Hierarchical User Interest Structure based on User Profiles},
  author = {Chao Zhao and Min Zhao and Yi Guan},
  year = {2017},
  eprint = {1709.06918},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1709.06918v1},
}