@article{hirata13ijcsai,
  author = {Norifumi Hirata and Shun Shiramatsu and Tadachika Ozono and Toramatsu Shintani},
  title = {A System for Collecting Tweets Using Event-based Structuring of Web Contents},
  journal = {International Journal of Computer Science and Artificial Intelligence},
  publisher = {},
  series = {},
  volume = {3},
  number = {2},
  pages = {50--58},
  year = {2013},
  doi = {10.5963/ijcsai0302003},
  url = {}
}