BFRecSys: A Blockchain-based Federated Matrix Factorization for Recommendation Systems.
Dongkun HouJie ZhangPublished in: BigData (2023)
Keyphrases
- matrix factorization
- recommendation systems
- collaborative filtering
- recommender systems
- user preferences
- low rank
- data sparsity
- factorization methods
- factor analysis
- recommendation quality
- negative matrix factorization
- nonnegative matrix factorization
- digital libraries
- collaborative filtering recommendation algorithm
- personalized recommendation
- tag recommendation
- cold start problem
- probabilistic matrix factorization
- user feedback
- implicit feedback
- user profiles
- stochastic gradient descent
- social recommendation
- learning to rank
- missing data
- latent factors
- information retrieval systems
- web search