Uniqueness of Nonnegative Matrix Factorizations by Rigidity Theory.
Robert KroneKaie KubjasPublished in: SIAM J. Matrix Anal. Appl. (2021)
Keyphrases
- matrix factorization
- nonnegative matrix factorization
- tensor factorization
- data matrix
- recommender systems
- collaborative filtering
- negative matrix factorization
- factor analysis
- factor matrices
- missing data
- linear programming
- data representation
- objective function
- spectral clustering
- sufficient conditions
- data sparsity
- stochastic gradient descent
- matrix multiplication
- factorization methods
- least squares
- sparse non negative