Keyphrases
- matrix factorization
- personalized ranking
- implicit feedback
- collaborative filtering
- low rank
- negative matrix factorization
- recommender systems
- missing data
- item recommendation
- learning to rank
- data sparsity
- nonnegative matrix factorization
- maximum likelihood
- web search
- factorization methods
- factor analysis
- probabilistic matrix factorization
- variational bayesian
- data matrix
- user feedback
- gaussian distribution
- stochastic gradient descent
- gaussian mixture
- tensor factorization
- latent factors
- binary matrix
- image classification
- multiscale
- face recognition