Combining Non-negative Matrix Factorization and Sparse Coding for Functional Brain Overlapping Community Detection.
Xuan LiZilan HuHaixian WangPublished in: Cogn. Comput. (2018)
Keyphrases
- negative matrix factorization
- sparse representation
- sparse coding
- overlapping community detection
- dictionary learning
- sparsity constraints
- nonnegative matrix factorization
- image classification
- image patches
- image representation
- face recognition
- social networks
- natural images
- signal processing
- linear combination
- matrix factorization
- dimensionality reduction
- principal component analysis
- high dimensional data
- document clustering
- unsupervised learning
- generative model
- basis vectors
- feature space
- high dimensional
- feature selection