Provable Alternating Gradient Descent for Non-negative Matrix Factorization with Strong Correlations.
Yuanzhi LiYingyu LiangPublished in: CoRR (2017)
Keyphrases
- negative matrix factorization
- alternating least squares
- update rule
- nonnegative matrix factorization
- matrix factorization
- sparse representation
- document clustering
- cost function
- blind source separation
- spectral clustering
- constrained least squares
- principal component analysis
- loss function
- neural network
- stochastic gradient descent
- knn
- similarity measure
- knowledge base