A Characterization of the Non-Uniqueness of Nonnegative Matrix Factorizations.
Weiwei PanFinale Doshi-VelezPublished in: CoRR (2016)
Keyphrases
- matrix factorization
- nonnegative matrix factorization
- tensor factorization
- factor matrices
- data matrix
- collaborative filtering
- sparse non negative
- low rank
- negative matrix factorization
- recommender systems
- factorization methods
- missing data
- data sparsity
- factor analysis
- sparsity constraints
- data representation
- stochastic gradient descent
- linear programming
- least squares
- objective function
- data sets
- matrix multiplication
- principal component analysis