Meta Matrix Factorization for Federated Rating Predictions.
Yujie LinPengjie RenZhumin ChenZhaochun RenDongxiao YuJun MaMaarten de RijkeXiuzhen ChengPublished in: SIGIR (2020)
Keyphrases
- matrix factorization
- collaborative filtering
- user ratings
- recommender systems
- rating prediction
- low rank
- data sparsity
- factorization methods
- nonnegative matrix factorization
- user preferences
- missing data
- factor analysis
- cold start
- variational bayesian
- tensor factorization
- data matrix
- negative matrix factorization
- stochastic gradient descent
- data sets
- item recommendation
- cold start problem
- user profiles
- latent factors
- implicit feedback
- personalized recommendation
- prediction accuracy