Robustness of Meta Matrix Factorization Against Strict Privacy Constraints.
Peter MüllnerDominik KowaldElisabeth LexPublished in: ECIR (2) (2021)
Keyphrases
- matrix factorization
- collaborative filtering
- recommender systems
- low rank
- factorization methods
- nonnegative matrix factorization
- negative matrix factorization
- missing data
- item recommendation
- variational bayesian
- data matrix
- binary matrix
- stochastic gradient descent
- data sparsity
- factor analysis
- tensor factorization
- object recognition
- personalized ranking
- probabilistic matrix factorization