Collaborative filtering using orthogonal nonnegative matrix tri-factorization.

Gang Chen Fei Wang Changshui Zhang Collaborative filtering using orthogonal nonnegative matrix tri-factorization. 368-379 2009 45 Inf. Process. Manage. 3 http://dx.doi.org/10.1016/j.ipm.2008.12.004 db/journals/ipm/ipm45.html#ChenWZ09