@inproceedings{ijcai2013p398,
  title     = {SCMF: Sparse Covariance Matrix Factorization for Collaborative Filtering},
  author    = {Shi, Jianping and Wang, Naiyan and Xia, Yang and Yeung, Dit-Yan and King, Irwin and Jia, Jiaya},
  booktitle = {Proceedings of the Twenty-Third International Joint Conference on
               Artificial Intelligence, {IJCAI-13}},
  publisher = {AAAI Press / International Joint Conferences on Artificial Intelligence},
  editor    = {Francesca Rossi},
  pages     = {2705--2710},
  year      = {2013},
  month     = {8},
  url       = {https://ijcai.org/proceedings/2013/398},
}