Keyphrases
- nonnegative matrix factorization
- multi task
- multi task learning
- negative matrix factorization
- learning tasks
- matrix factorization
- least squares
- multi class
- data representation
- learning problems
- spectral clustering
- principal component analysis
- transfer learning
- original data
- multiple kernel learning
- objective function
- document clustering
- image processing
- text mining
- feature selection
- feature space
- data sets
- data analysis