1. Guo, G., Zhang, J., Yorke-Smith, N.: A novel recommendation model regularized with user trust and item ratings. TKDE 28, 1607–1620 (2016)
2. Koren, Y.: Factorization meets the neighborhood: a multifaceted collaborative filtering model. In: SIGKDD, pp. 426–434. ACM (2008)
3. Lee, D.D., Seung, H.S.: Learning the parts of objects by non-negative matrix factorization. Nature 401(6755), 788 (1999)
4. Lee, J., Kim, S., Lebanon, G., Singer, Y.: Local low-rank matrix approximation. In: ICML, pp. 82–90 (2013)
5. Ma, H., King, I., Lyu, M.R.: Learning to recommend with explicit and implicit social relations. TIST 2(3), 29 (2011)