@inproceedings{guodan2018hlstm,
      title     = {Recurrent Relational Memory Network for Unsupervised Image Captioning},
      author    = {Dan, Guo and Yang, Wang and Peipei, Song and Meng, Wang},
      booktitle = {International Joint Conference on Artificial Intelligence (IJCAI)},
      pages     = {920--926},
      year      = {2020},
      month     = {January}
    }