Penguins in sweaters, or serendipitous entity search on user-generated content

@article{Bordino2013PenguinsIS,
  title={Penguins in sweaters, or serendipitous entity search on user-generated content},
  author={Ilaria Bordino and Yelena Mejova and Mounia Lalmas},
  journal={Proceedings of the 22nd ACM international conference on Information \& Knowledge Management},
  year={2013}
}
In many cases, when browsing the Web users are searching for specific information or answers to concrete questions. Sometimes, though, users find unexpected, yet interesting and useful results, and are encouraged to explore further. What makes a result serendipitous? We propose to answer this question by exploring the potential of entities extracted from two sources of user-generated content -- Wikipedia, a user-curated online encyclopedia, and Yahoo! Answers, a more unconstrained question… 
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