Solving non-negative matrix factorization by alternating least squares with a modified strategy.
Hongwei LiuXiangli LiXiuyun ZhengPublished in: Data Min. Knowl. Discov. (2013)
Keyphrases
- alternating least squares
- negative matrix factorization
- nonnegative matrix factorization
- matrix factorization
- document clustering
- sparse representation
- spectral clustering
- principal component analysis
- stochastic gradient descent
- image processing
- data sets
- document collections
- low rank approximation
- training set
- text documents