Implicit vs. explicit trust in social matrix factorization.
Soude FazeliBabak LoniAlejandro BellogínHendrik DrachslerPeter B. SloepPublished in: RecSys (2014)
Keyphrases
- matrix factorization
- rating prediction
- collaborative filtering
- low rank
- missing data
- recommender systems
- factorization methods
- factor analysis
- negative matrix factorization
- nonnegative matrix factorization
- social networks
- trust relationships
- social interaction
- data matrix
- probabilistic matrix factorization
- item recommendation
- variational bayesian
- data sparsity
- implicit feedback
- social influence
- social media
- latent factors
- factorization method
- latent factor models
- factor matrices