@inproceedings{ijcai2009p338,
  title     = {Can Movies and Books Collaborate? Cross-Domain Collaborative Filtering for Sparsity Reduction},
  author    = {Li, Bin and Yang, Qiang and Xue, Xiangyang},
  booktitle = {Proceedings of the Twenty-First International Joint Conference on
               Artificial Intelligence, {IJCAI-09}},
  publisher = {International Joint Conferences on Artificial Intelligence},
  editor    = {Hiroaki Kitano},
  pages     = {2052--2056},
  year      = {2009},
  url       = {https://ijcai.org/proceedings/2009/338},
}