BLC: Private Matrix Factorization Recommenders via Automatic Group Learning.
Alessandro CheccoGiuseppe BianchiDouglas J. LeithPublished in: CoRR (2015)
Keyphrases
- matrix factorization
- collaborative filtering
- recommender systems
- group learning
- low rank
- negative matrix factorization
- nonnegative matrix factorization
- missing data
- web based learning
- data sparsity
- online collaborative learning
- collaborative learning
- factorization methods
- implicit feedback
- item recommendation
- student learning
- group members
- user preferences
- individual learning
- knowledge building
- concept mapping