Labelwalking nonnegative matrix factorization.
Long LanNaiyang GuanXiang ZhangXuhui HuangZhigang LuoPublished in: ICASSP (2015)
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
- document clustering
- original data
- objective function
- image processing
- unsupervised learning
- image classification
- dimensionality reduction
- sparsity constraints
- probabilistic model
- face recognition