Fast rank-2 nonnegative matrix factorization for hierarchical document clustering.
Da KuangHaesun ParkPublished in: KDD (2013)
Keyphrases
- nonnegative matrix factorization
- hierarchical document clustering
- k nearest neighbor
- probabilistic latent semantic indexing
- data representation
- negative matrix factorization
- matrix factorization
- knn
- active set
- spectral clustering
- least squares
- principal component analysis
- document clustering
- nonnegative matrix
- nearest neighbor
- text categorization
- image segmentation
- clustering method
- neural network
- semi supervised
- feature vectors
- digital libraries
- multiscale
- search engine