@inproceedings{ijcai2015p338,
  title     = {A Unified Probabilistic Model of User Activities and Relations on Social Networking Sites},
  author    = {Yu, Xiaofeng and Xie, Junqing and Wang, Shuai},
  booktitle = {Proceedings of the Twenty-Fourth International Joint Conference on
               Artificial Intelligence, {IJCAI-15}},
  publisher = {International Joint Conferences on Artificial Intelligence},
  editor    = {Qiang Yang and Michael Wooldridge},
  pages     = {2387--2392},
  year      = {2015},
  month     = {7},
  note      = {Main Track},
  url       = {https://ijcai.org/proceedings/2015/338},
}