@article{CLCP19,
  author        = {B.-H. Chen and C.-T. Li and K.-T. Chuang and J. Pang and Y. Zhang},
  title         = {An active learning-based approach for location-aware acquaintance inference},
  journal       = {Knowledge and Information Systems},
  year          = {2019},
  volume        = {59},
  number        = {3},
  pages         = {539-569}
}