@article{twitterdiscussionsandconcernsaboutcovid,
  title = {Twitter discussions and emotions about COVID-19 pandemic: a machine learning approach},
  author = {Jia Xue and Junxiang Chen and Ran Hu and Chen Chen and Chengda Zheng and Xiaoqian Liu and Tingshao Zhu},
  year = {2020},
  eprint = {2005.12830},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2005.12830v2},
}