Soft-constrained nonnegative matrix factorization via normalization.
Long LanNaiyang GuanXiang ZhangDacheng TaoZhigang LuoPublished in: IJCNN (2014)
Keyphrases
- nonnegative matrix factorization
- probabilistic latent semantic indexing
- negative matrix factorization
- matrix factorization
- data representation
- least squares
- active set
- spectral clustering
- nonnegative matrix
- principal component analysis
- original data
- document clustering
- sparsity constraints
- pairwise
- recommender systems
- objective function
- machine learning