Matrix Factorization in Social Group Recommender Systems.
Ingrid Alina ChristensenSilvia N. SchiaffinoPublished in: MICAI (Special Sessions) (2013)
Keyphrases
- matrix factorization
- recommender systems
- collaborative filtering
- rating prediction
- data sparsity
- low rank
- factorization methods
- cold start problem
- social interaction
- nonnegative matrix factorization
- negative matrix factorization
- factor analysis
- user generated content
- cold start
- low rank matrix factorization
- social networks
- recommendation algorithms
- probabilistic matrix factorization
- item recommendation
- social media
- online communities
- recommendation systems
- implicit feedback
- personalized ranking
- information overload
- missing data
- user interests
- latent factor models
- variational bayesian
- recommendation quality
- latent factors
- principal component analysis
- data matrix
- personalized recommendation
- user generated