Inproceedings (968112)
Calderón-Benavides, M. L.; González-Caro, C. N.; de J. Pérez-Alcázar, J.; Garca-Daz, J. C. & Delgado, J.
A comparison of several predictive algorithms for collaborative filtering on multi-valued ratings
ACM Press, 2004, 1033-1039

Article (keyhere)
Xie, B.; Han, P.; Yang, F.; Shen, R.; Zeng, H. & Chen, Z.
DCFLA: A distributed collaborative-filtering neighbor-locating algorithm
Information Sciences, 2007, 177, 1349-1363