Keyphrases
- matrix factorization
- neural network
- collaborative filtering
- low rank
- factor analysis
- recommender systems
- negative matrix factorization
- pattern recognition
- factorization methods
- missing data
- nonnegative matrix factorization
- stochastic gradient descent
- variational bayesian
- factorization method
- latent factors
- item recommendation
- personalized ranking
- data matrix
- data sparsity
- probabilistic matrix factorization
- loss function
- data sets
- implicit feedback
- feature space