Pre-filling Based on Community for Sparsity in Collaborative Filtering.
Li YuZhaoli MengRong WangPublished in: ISIP (2008)
Keyphrases
- collaborative filtering
- data sparsity
- recommender systems
- matrix factorization
- cross domain collaborative filtering
- tensor factorization
- user preferences
- neighbor selection
- making recommendations
- search engine
- recommendation quality
- rating matrix
- high dimensional
- web page recommendation
- learning algorithm
- sparsity constraints
- squared loss
- community members
- user ratings
- personalized recommendation
- community detection
- user profiles
- semi supervised
- learning environment
- social networks