Keyphrases
- matrix factorization
- recommender systems
- collaborative filtering
- low rank
- factorization methods
- nonnegative matrix factorization
- cold start problem
- probabilistic matrix factorization
- negative matrix factorization
- data sparsity
- information overload
- factor analysis
- user preferences
- user interests
- data matrix
- personalized ranking
- tensor factorization
- personalized recommendation
- implicit feedback
- stochastic gradient descent
- item recommendation
- user feedback
- latent factor models
- latent factors
- recommendation systems
- variational bayesian
- binary matrix
- factor matrices
- factorization method
- user profiles