On Unexpectedness in Recommender Systems

@article{Adamopoulos2014OnUI,
  title={On Unexpectedness in Recommender Systems},
  author={Panagiotis Adamopoulos and A. Tuzhilin},
  journal={ACM Transactions on Intelligent Systems and Technology (TIST)},
  year={2014},
  volume={5},
  pages={1 - 32}
}
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 significant improvement is the concept of unexpectedness. In this article, we propose a method 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… Expand
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A model to improve user satisfaction by generating unexpected recommendations based on the utility theory of economics is proposed and a new concept of unexpectedness is proposed as recommending to users those items that depart from what they expect from the system. Expand
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