FER based on the improved convex nonnegative matrix factorization feature.
Jing ZhouTianjiang WangPublished in: Multim. Tools Appl. (2020)
Keyphrases
- nonnegative matrix factorization
- probabilistic latent semantic indexing
- active set
- matrix factorization
- negative matrix factorization
- least squares
- nonnegative matrix
- data representation
- spectral clustering
- image features
- original data
- objective function
- machine learning
- convex optimization
- document clustering
- feature set
- feature vectors
- feature space
- clustering algorithm
- feature selection