Understanding and improving relational matrix factorization in recommender systems.
Li PuBoi FaltingsPublished in: RecSys (2013)
Keyphrases
- matrix factorization
- recommender systems
- collaborative filtering
- low rank
- factor analysis
- implicit feedback
- negative matrix factorization
- stochastic gradient descent
- factorization methods
- probabilistic matrix factorization
- cold start problem
- nonnegative matrix factorization
- data sparsity
- missing data
- item recommendation
- user preferences
- variational bayesian
- rating prediction
- personalized ranking
- factorization method
- tensor factorization
- low rank matrix factorization
- recommendation quality
- personalized recommendation
- dimensionality reduction
- data matrix
- information overload
- user profiles
- least squares