@inproceedings{tp3565,
  title = {Incomplete preference relations to smooth out the cold start in Collaborative Recommender Systems},
  author = {Luis Martínez and Luis Gonzaga Pérez and Manuel J. Barranco},
  year = {2009},
  publisher = {The 28th North American Fuzzy Information Processing Society Annual Conference (NAFIPS2009)},
  keywords = {congreso_internacional},
}