The complexity of positive semidefinite matrix factorization.
Yaroslav ShitovPublished in: CoRR (2016)
Keyphrases
- matrix factorization
- positive semidefinite
- low rank
- collaborative filtering
- kernel matrix
- recommender systems
- factorization methods
- missing data
- negative matrix factorization
- semidefinite programming
- nonnegative matrix factorization
- linear combination
- similarity function
- kernel methods
- machine learning
- data sets
- worst case