Optimization Matrix Factorization Recommendation Algorithm Based on Rating Centrality.
Zhipeng WuHui TianXuzhen ZhuShuo WangPublished in: DMBD (2018)
Keyphrases
- matrix factorization
- collaborative filtering
- recommendation algorithms
- recommender systems
- stochastic gradient descent
- recommendation systems
- low rank
- user preferences
- cold start
- personalized recommendation
- probabilistic matrix factorization
- recommendation quality
- collaborative filtering recommendation
- factorization methods
- nonnegative matrix factorization
- rating prediction
- user ratings
- data sparsity
- negative matrix factorization
- social networks
- factor analysis
- learning to rank
- cold start problem
- social network analysis
- user profiles
- implicit feedback
- collaborative filtering algorithms
- filtering algorithm
- missing data
- prediction accuracy
- image processing