@article{improvingdocumentlevelsentiment,
  title = {Improving Document-Level Sentiment Classification Using Importance of Sentences},
  author = {Gihyeon Choi and Shinhyeok Oh and Harksoo Kim},
  year = {2021},
  eprint = {2103.05167},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2103.05167v1},
}