On Unexpectedness in Recommender Systems: Or How to Expect the Unexpected

  title={On Unexpectedness in Recommender Systems: Or How to Expect the Unexpected},
  author={Panagiotis Adamopoulos and Alexander Tuzhilin},
Although the broad social and business success of recommender systems has been achieved across several domains, there is still a long way to go in terms of user satisfaction. One of the key dimensions for improvement is the concept of unexpectedness. In this paper, we propose a model to improve user satisfaction by generating unexpected recommendations based on the utility theory of economics. In particular, we propose a new concept of unexpectedness as recommending to users those items that… CONTINUE READING
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