@revista_internacional{305,
  keywords = {collaborative filtering, Matrix factorization, Natural noise, Nearest neighbor-based recommendation, Recommender systems},
  author = {Raciel Yera and Y Caballero and Luis Martínez},
  title = {Correcting noisy ratings in collaborative recommender systems},
  year = {2015},
  journal = {Knowledge-based Systems},
  volume = {76},
  pages = {96-108},
  publisher = {Elsevier},
  url = {http://dx.doi.org/10.1016/j.knosys.2014.12.011},
}