1. Beyond incremental processing: Tracking concept drift;Schlimmer,1986
2. Learning in the presence of concept drift and hidden contexts;Widmer;Mach. Learn.,1996
3. Probabilistic matrix factorization;Salakhutdinov,2007
4. Algorithms for non-negative matrix factorization;Lee,2000
5. Maximum-margin matrix factorization;Srebro,2004