Collaborative Filtering with a User-Item Matrix Reduction Technique.
Kyoung-jae KimHyunchul AhnPublished in: Int. J. Electron. Commer. (2011)
Keyphrases
- collaborative filtering
- recommender systems
- user item rating
- matrix factorization
- low rank
- rating matrix
- singular value decomposition
- making recommendations
- data sparsity
- social networks
- user preferences
- recommendation systems
- cold start problem
- matrix representation
- personalized recommendation
- pearson correlation coefficient
- deal with information overload
- coefficient matrix
- recommendation quality
- latent class models
- probabilistic matrix factorization
- user interests