Who are the most influential users in a recommender system?

Mohammad Amin Morid, Mehdi Shajari, Alireza Hashemi Golpayegani. Who are the most influential users in a recommender system?. In Proceedings of the 13th International Conference on Electronic Commerce, ICEC 2011, Liverpool, United Kingdom, August 3-5, 2011. ACM, 2011. [doi]

@inproceedings{MoridSG11,
  title = {Who are the most influential users in a recommender system?},
  author = {Mohammad Amin Morid and Mehdi Shajari and Alireza Hashemi Golpayegani},
  year = {2011},
  doi = {10.1145/2378104.2378123},
  url = {https://doi.org/10.1145/2378104.2378123},
  researchr = {https://researchr.org/publication/MoridSG11},
  cites = {0},
  citedby = {0},
  booktitle = {Proceedings of the 13th International Conference on Electronic Commerce, ICEC 2011, Liverpool, United Kingdom, August 3-5, 2011},
  publisher = {ACM},
  isbn = {978-1-4503-1428-2},
}