Understanding the Sparsity: Augmented Matrix Factorization with Sampled Constraints on Unobservables.
Yongfeng ZhangMin ZhangYi ZhangYiqun LiuShaoping MaPublished in: CIKM (2014)
Keyphrases
- matrix factorization
- data sparsity
- cross domain collaborative filtering
- collaborative filtering
- tensor factorization
- low rank
- recommender systems
- factorization methods
- negative matrix factorization
- high dimensional
- variational bayesian
- missing data
- nonnegative matrix factorization
- data matrix
- factor analysis
- factorization method
- sparsity constraints
- binary matrix
- data sets
- latent factors
- personalized ranking
- probabilistic matrix factorization