@Techreport{doerfel2014course,
  author = {Doerfel, Stephan and Zoller, Daniel and Singer, Philipp and Niebler, Thomas and Hotho, Andreas and Strohmaier, Markus},
  title  = {Of course we share! Testing Assumptions about Social Tagging Systems},

  year   = {2014},
  number = {},
  url    = {http://arxiv.org/abs/1401.0629},

  const  = {\ text}
}
@Inproceedings{doerfel2012leveraging,
  author = {Doerfel, Stephan and Jäschke, Robert and Hotho, Andreas and Stumme, Gerd},
  title  = {Leveraging Publication Metadata and Social Data into FolkRank for Scientific Publication Recommendation},

  year   = {2012},
  number = {},
  url    = {http://doi.acm.org/10.1145/2365934.2365937},
  doi = {10.1145/2365934.2365937},
  const  = {\ text}
}
@Inproceedings{hees2010linked,
  author = {Hees, Jörn and Roth-Berghofer, Thomas and Dengel, Andreas},
  title  = {Linked Data Games: Simulating Human Association with Linked Data},

  year   = {2010},
  number = {},
  url    = {},

  const  = {\ text}
}
@Inproceedings{benevenuto2009characterizing,
  author = {Benevenuto, Fabr\'{\i}cio and Rodrigues, Tiago and Cha, Meeyoung and Almeida, Virg\'{\i}lio},
  title  = {Characterizing User Behavior in Online Social Networks},

  year   = {2009},
  number = {},
  url    = {http://doi.acm.org/10.1145/1644893.1644900},
  doi = {10.1145/1644893.1644900},
  const  = {\ text}
}
@Article{Go_Huang_Bhayani_2009,
  author = {Go, A and Huang, L and Bhayani, R},
  title  = {Sentiment Analysis of Twitter Data},
  journal = {Entropy},
  year   = {2009},
  number = {June},
  url    = {http://nlp.stanford.edu/courses/cs224n/2009/fp/3.pdf},

  const  = {\ text}
}
@Inproceedings{conf/sigmod/WangWYY02,
  author = {Wang, Haixun and 0010, Wei Wang and Yang, Jiong and Yu, Philip S.},
  title  = {Clustering by pattern similarity in large data sets.},

  year   = {2002},
  number = {},
  url    = {http://dblp.uni-trier.de/db/conf/sigmod/sigmod2002.html#WangWYY02},

  const  = {\ text}
}