@inproceedings{liu2019ppn,
  title     = {Prototype Propagation Networks ({PPN}) for Weakly-supervised Few-shot Learning on Category Graph},
  author    = {Liu, Lu and Zhou, Tianyi and Long, Guodong and Jiang, Jing and Yao, Lina and Zhang, Chengqi},
  booktitle = {International Joint Conferences on Artificial Intelligence (IJCAI)},
  year      = {2019}
}