1. Breese JS, Heckerman D and Kadie C (1998) Empirical analysis of predictive algorithms for collaborative filtering. In the Proceeding of the Fourteenth Conference on Uncertainty in Artificial Intelligence
2. Cohen W, Shapire R and Singer Y (1998) Learning to order things. In: Advances in Neural Processing Systems 10. MIT Press, Denver, CO, 1997
3. Connor M and Herlocker J (2001) Clustering items for collaborative filtering. In the Proceedings of SIGIR-2001 Workshop on Recommender Systems, New Orleans, LA
4. Dempster AP, Laird NM and Rubin DB (1977) Maximum likelihood from incomplete data via the EM algorithm. Journal of the Royal Statistical Society, B39:1–38
5. Fisher D, Hildrum K, Hong J, Newman M and Vuduc R (2000) SWAMI: A framework for collaborative filtering algorithm development and evaluation. In the Proceedings of the 23rd Annual International Conference on Research and Development in Information Retrieval (SIGIR)