Utility-based neighbourhood formation for efficient and robust collaborative filtering

@inproceedings{OMahony2004UtilitybasedNF,
  title={Utility-based neighbourhood formation for efficient and robust collaborative filtering},
  author={Michael P. O'Mahony and Neil J. Hurley and Guenole C. M. Silvestre},
  booktitle={EC},
  year={2004}
}
In this paper we propose novel neighbourhood formation and similarity weight transformation schemes for automated collaborative filtering systems. We demonstrate the benefits of our schemes from the point-of-view of the efficiency and robustness provided, while achieving the accuracy and coverage of a benchmark k-Nearest Neighbour (k-NN) model. 
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