Keyphrases
- matrix factorization
- collaborative filtering
- recommender systems
- item recommendation
- data sparsity
- cold start problem
- latent factor models
- social media
- user generated content
- low rank
- social networks
- rating prediction
- factor analysis
- recommendation systems
- negative matrix factorization
- factorization methods
- tensor factorization
- implicit feedback
- online social networks
- personalized recommendation
- user preferences
- missing data
- cold start
- probabilistic matrix factorization
- variational bayesian
- personalized ranking
- stochastic gradient descent
- recommendation algorithms
- nonnegative matrix factorization
- topic models
- social networking
- user feedback
- user interests
- recommendation quality
- link prediction
- latent factors
- image classification