@article{evaluatingtheusefulnessofsentiment,
  title = {Evaluating the Usefulness of Sentiment Information for Focused Crawlers},
  author = {Tianjun Fu and Ahmed Abbasi and Daniel Zeng and Hsinchun Chen},
  year = {2013},
  eprint = {1309.7270},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1309.7270v1},
}