@article{learningoptimalsocialdependencyfor,
  title = {Learning Optimal Social Dependency for Recommendation},
  author = {Liu Yong and Zhao Peilin and Liu Xin and Wu Min and Li Xiao-Li},
  year = {2016},
  eprint = {1603.04522},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1603.04522v1},
}