@article{onpredictabilityofrareeventsleveraging,
  title = {On predictability of rare events leveraging social media: a machine learning perspective},
  author = {Lei Le and Emilio Ferrara and Alessandro Flammini},
  year = {2015},
  eprint = {1502.05886},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1502.05886v1},
}