Over-Parametrized Matrix Factorization in the Presence of Spurious Stationary Points.
Armin EftekhariPublished in: CoRR (2021)
Keyphrases
- matrix factorization
- stationary points
- collaborative filtering
- recommender systems
- low rank
- missing data
- nonnegative matrix factorization
- nonlinear programming
- negative matrix factorization
- factorization methods
- convergence analysis
- fixed point
- constrained optimization
- tensor factorization
- optimality conditions
- objective function
- mathematical programming
- optimization problems